The Cat 3306 and 3304 Diesel Engine. The BEST Engine you may have NEVER heard of.
Vložit
- čas přidán 5. 09. 2024
- In this video we discuss the Cat 3306 and 3304 Cat Diesel Engine. One of the best engines that Cat ever made. Thanks for watching. You can help support the channel at AdeptApe@yahoo.com on PayPal or my clicking on the Amazon Affiliate links below. Thanks for watching. Milwaukee 1/2 Drive Impact w/batteries: amzn.to/3chlAwB Fowler 18" Straight Edge: amzn.to/3nuofoW Precision Instruments 3/8" Torque Wrench: amzn.to/2NmFUlQ
I feel like the 3306's are the underdog of Cat engines...they were used in so many different applications and like you mentioned, held up very well. There are lots of construction and farm equipment still running 3306's today, especially tractors and dozers.
There's a construction site near where I live and the excavating company have a Cat 930 loader powered by a turbo 3304 PC engine.
Now a 7 litre inline-4 is interesting.
In my younger years I piloted a tour boat that had twin 3306’s .
I have a 3306C in my 1992 Ford LT9000 with 55,000 original miles on it. It might be a little underpowered for the 92,000 gross, but I kinda baby it and am never in a hurry anyway. I love it. It starts great in the cold and all I've ever done is maintain it. Thanks for your videos, they are very well done. I'm a native Idahoan and lived in Moscow for 6years.
Just got done working on my 3306 today. I have two of them. One in a 140G and one in a 65 Challenger!!
Had one in a kw and early cat challengers. Not over powered but could run them hard all day everyday, weren’t tempermental and easy to maintain. Great engine.
That seems to be most people's opinion on them, good engines and not too powerful.
It’s something to be said about simple mechanical Diesel engines. I built some 3206 engines in old dozers. Didn’t know there was a 3306. Thanks for sharing.
Those were 3306 with the old cylinder head and flywheel housing 3206 was never build it was the old 3306
@@kdquadplayers242 I guess besides my body being all crippled up my mind is leaving me too.
My CAT D6D came with a 3306 around 140hp, great running engine.
My 1986 04X D6D also came with one of these. Great engine
140 hp sounds puny until you find out how much torque diesels make. I think all heavy equipment and trucks should be rated in torque amd hp in advertising.
@@ReidHenderson also geared so low that they top out @6 mph.
Yeah, my 1995 D6H LGP had a 3306, awesome engine, minimal problems.
@@ReidHendersonwhat is the torque?
Those engines are the Holden red motor which powered Australia cars for 40 years, super reliable dead easy to fix and what I did my time on 40 years ago. I converted a 3304 DI to a 3304 PC in 1987 to meet emissions in 1987 in the underground eviroment. A lot to be said for PC engines as far as emission go, my 2 cents worth
w
We have one in our 1990 Ford l9000. It’s air to air inter-cooler and has a two stage Jake . Over 300 hp . Awesome motor! They sound really good with a straight pipe .
Just to add, last year it blew a head gasket . Found out a liner dropped on #6. Cat put new packs in holes 5 and 6. Cut the counterbore, rebuilt the head, decked it, ect . Ready for another 500k miles .
Been waiting for this one. I have a 3306 in my L9000. Absolutely love it. Low maintenance, hard working engine. I only use Cat filters, and Delvac 15w40. Maintain properly and they will put the energizer bunny to shame.
Cat filters just make sense 😀
@@AdeptApe for some, the additional cost is not worth it to everyone. I run cat filters on mine because I'm a 1 truck operation and a bad filter would be detrimental to my business. However if someone has 10+ trucks the liklyhood of a bad filter taking out a engine is a financial gamble worth taking as it is rare and the reduction in maintenance cost can easily pay for that lost engine.
@@jaydunbar7538 Alot of times, especially down here in FL, you're saving about $2-3 a filter. I've come across some Napa's out in the field, where I've had to get a fuel filter in a pinch and spent $4 more for a wix.
For people flipping out about white filters, Cat filers were white in the ‘70s and ‘80s. Look up a 1P2299 but you’ll need an old catalog with color pictures. You can try to google it but I doubt it will look the same.
We have two CAT 930 loaders and a 920 all built between 1979 and 1980 and they all run non-turbo 3304 engines and they are still running strong after 42 years…
I worked on a bunch of these engine's and I totally agree they are a great ENGINES I did a lot of over hauls on them they were high hours. One thing I experienced with them is when they started blowing head gaskets, they had low liners they had to be brought back to height by shims or redeking the block. They had a lot of hours at this point.
Being older than Mr. Ape I watched the evolution of the 3300 series during my years working on them for my friendly neighborhood Cat dealer.
Beautiful in their simplicity and reliability. Power to weight ratio not great which didn't matter in a dozer or loader where you needed weight to keep the blade or back end down but not great in a truck.
They evolved from the D330 and D333 engines which were very similar except the head and block were a little different and the D330/3 stroke shorter if I remember correctly.
Cat must have built millions of 3300 series engines, they were in everything.
There were upgrades depending on application and experience.
Depending on the power rating the pistons may or may not have had the steel "Fire Plug" in the hollow of the piston where the fuel was sprayed.
There were also variations in the steel inserts in the ring lands. depending on power rating.
The block evolved from a counterbore to a flat deck with spacer plate. Just cheaper to machine flat surfaces than counterbores. The head gaskets are different to accommodate lubing the rocker shaft
The spacer plate had some issues and was updated.
The head and fuel system evolved. It started out with what was called the "compact system" which was a pump that looked like a small engine, convoluted on the sides with injection pipes sticking up which connected to the capsule nozzles in the precombustion chambers [precups]. Precups were screwed into the head. Precups had glow plugs screwed into them, best -40 starting system ever.The head itself is flat except the valves and maybe some precup protrusion. The precups had different gasket/spacer/washer thicknesses to to allow the glow plug to be located more or less to the valve cover so the glow plug harness could reach.
Next came the "Sleeve Metering" fuel system, hard to explain how it works in words. Rather than a helix on the plunger it uses drilled holes in the plunger and a sleeve around the plunger that was moved up or down to close the dump port and control fuel injected. It is identified by being rather small with a flat cover plate which accessed the innards. It didn't tolerate fuel contamination well.
Somewhere along here the precup system was kind of abandoned and an adapter that replaced the precup was introduced that fitted a pencil nozzle, no glow plugs.
Later heads had no precups, or adapters, only a drilled hole for the pencil nozzle.
The last incarnations had a fuel system known as the "New Compact System". Kinda looks like sleeve metering but bigger with a large cover.
The engine bearings were updated for environmental reasons. They used nickel or copper to bond the aluminum bearing material to the steel back. I don't remember which one came first but it got punted for environmental reasons and we were sent notice that the new bearing life wasn't as long as the old ones and should be replaced earlier.
The wet aftercooler was the last gasp for the 3300 series. Trying to get more power from a reliable old steed they gave it colder, denser air.
I suspect the demise of the 3300 series was there was no easy way to make it meet upcoming emission standards.
Plus Cat bought Perkins which gave them all the engine technology they lacked in the emission arena and if you study you will find the smaller modern Cat engines are Perkins painted yellow.
The purchase of Perkins also gave then access to British Military contracts, tank engines and such.
Main problems [besides poor maintenance] : Yes they did drop valves at high hours. Valves were improved over time. Sometime an injector slobbered and melted a piston.
In 1980 to get 10,000 hours out of an engine working hard was darn good. The 3300 series would run 10,000 hours without the head being pulled, and more.
I run a D7G w/a 3306 now and then for a buddy. Its a great running engine. Pushes very hard.
For your information, the 3306 was fitted to Foden trucks in the uk during 80s/ early 90s, it produced 400hp, and constantly blew around the cylinder liner to head seal, i rebuilt alot of them for that problem, cat used to blame the radiator for not being large enough, but the problem made them very unpopular here.
The 3300 series are true, genuine performers.
I've refreshed a non-deckplate, counterbored precup girl that still ran well... out of a late 60's D7.
If it weren't for the crack in the block, she'd have taken yet another in-frame and ran on for another generation.
3306C is definitely up on my list of the greats.
What does the "c" at the end of the model number mean?
@@bobby1970 Essentially, third generation. It had the best head, injection system, turbo, and cooling system.
I once worked on a D6R tractor, which had this engine, it had electronic control in the transmission, but the engine was mechanic.
I started after 2 years of being stopped, the most impressive thing was that it did't have the injector tubes, and in fact the pump and inyector connections were rusty, I really did not think it would turn on. It started at the first try, and sounded like new, it was impressive!
Really I think the best engine with which I hace work!!
3306 is the best engine I have on the farm in a Challenger 65A. 15k hours of hard work in the hills and has had nozzles, water pump, and injection pump and that’s pretty much it. Just sips fuel for the work it does too. Starts way easier in the cold than it has any right too as well.
Love the videos. Just thought I would let you know, CAT still makes the 3306B, and 3406C, just not in your neck of the woods. The 3306 is still built brand new today, and installed in two pieces of equipment (R1300G, and D6GC). The R1300G (NJB prefix) underground loader has been built since 2012 and uses the 3306B. In September of 2020 CAT just started building the D6GC (XPC prefix) which also has the 3306B. The 3406C is also still built brand new today, its used in the D8R (MEJ & RJM prefix depending if its built in Thailand or Brazil) . Check them out, very popular engines.
Dozer and 966 payloader excellent engines.
"when it finally came off, it was, pretty exciting" LOL
We run a lot of the 3306 and a few 3304 diesel engines in our underground mining equipment it has been a super good motor but if u overheat it a few thousand times it will crack a head
"if you overheat it a few thousand times" lol
True story happens in the coal mines every day just part of the permissible system they have
Cat engines belike: YOU F'ING IDIOTS STOP TORCHERING ME
We run the 3306 in our cat R1300G muckers underground too and beat the living fuck out of them lol. Constant overheating and they keep ticking! Beast of a motor
On that filter color. In the late 70's and 80's I was engineer for or skippered 14 Alaska crab boats and trawlers which were all CAT powered, each had at least two 3306's for gensets, a couple had a 3rd for hydraulics only. I ordered all my filters by the case through NC Machinery (Seattle) and with the exception of a small black CAT logo, all the canister filters (fuel & oil) were bright white. The only issue we ever had with any of the dozens of 3306's over the years was that damned Jabsco impeller on the raw water pump. Hours ranged from 7k to over 30k with no major work.
I have a marine D330T (now called the 3304) in a 1968 wooden DeFever 50 ft trawler. Incredible engine. It will probably be running long after I am gone.
glad to see that comment, just negotiating purchase of defever 60 and has 7000 hrs on twin 3306 s ,(maybe talk their price down a little) but they are lovely vessels
I had to stop & laugh myself silly when you replaced those non-Cat filters with the proper items 😂😂😂 good show!
This is an engine & platform that, I have to admit, i didn't know much about. Is that pump a Bosch P-derivative?
WIX filters are fine IF *IF* (< See That Word) you maintain your equipment properly... Those filters collapsing were likely caused by a stuck Oil Pump pressure release or a clogged filter...LACK OF MAINT! - I have used WIX for 3 Decades and Millions of Miles....Never Had a Problem...
The argument that the Engine Manufacturer "Designed" the filter to work with X engine... That "Might" be an argument with CAT because they are ANAL Control freaks about everything... But I know every other Manufacturer out there...Has a filter made "To their specs" by whichever company is cheapest that month... I have seen GM/Ford and Toyota, and just about EVERY Automotive/Medium Duty brand, filters of the same "Part Number" change "Style" and even the case box is indicating it's coming from a different supplier...
Lots of them in the Alberta oil patch that run compressors. Good units! They’re all converted to run on natural gas.
How long have they lasted?
My experience with them on nat gas is that they are very poor. 3400 on gas as well. They burn valves constantly. I can't remember the numbers for certain but I doubt much more than 5000hrs on a cylinder head.
@@davidscott5903 Years. They get serviced every 2000 hours.
@@nathansihlis4866 Fuel gas quality is always an issue for sure, having a knowledgeable mechanic set them up to run properly with the fuel gas on site is key. Engine oil also plays into having bad valve issues. We had to quit using a Conoco oil because it caused nothing but problems. The Esso GLX and GMA 40 oils were more expensive, but the maintenance bills are much lower than when we used the cheaper Conoco oil.
@@tombryant4518 yes for sure. Those points are vital to longevity. It was Esso or Chevron oil on almost every unit we serviced as I remember. I remember changing many many heads on those small Cats. We were always sent with a head and gasket kit when we did a service on those units. The Waukesha F11, 18, H24 were somewhat better.
I use Wix & Baldwin filters on my D7G 3306B. Cat filters from the dealer are twice the cost locally than other brands. In a pinch the truck stop carries lubefiner filters for them
Finally! Our workshop just had one roll through for rebuild.
Thank you very much for these clarifications and i can only confirm that the 3306 Engine is one of the best Engines CAT has ever made.Great Video.
I still run into these on generator sets. Love replacing the injector adapters.
Well! About filters: don’t know about engine filters, but hydraulic medium pressure ones - all Donaldson Duramax, painted in CAT colors. I suspect that low pressure/return filters are the same, Donaldson. I suspect that that all of them are Donaldson, just OEM line.
😁
Long time watcher, first comment. 3306 engines are used in gensets in Antarctica, and exchanges shipped back and forth to aus for rebuilding. Seem to be rebuildable an infinite amount of times. Would have to be the best diesel motor in the 10L size.
Thank you for your comment and I bet you have some interesting stories down there.
Also built a fleet of 730 haul trucks and tuned up the pumps. They were great
Boy.... I remember these back in the late 80’s we had a few
Had a 235 excavator with a 3306, only problem in 20000+ hours was the head. Still running a 950 with a 3304 over 25000 hours with no issues. They’re close to bulletproof
Hey great video. But the 3306 was installed in equipment until the early 2000 ( 330B excavator for example and 966G wheelloaders ). And a common problem I know on of highway equipment with mostly changing engine speeds like wheelloaders for example the rubber verules on the head gasket worked there way into the head an block surface. So that they don't seal anymore and the head and the block both had to be machined. But that happened at high mileage 10000 hours plus.
My old 948 cat loader has a 3304 in it. Great running little machine
I agree one of the best engines Cat ever made, I worked on then often over my career as a diesel mechanic.
The D343 is also a great engine. It is bigger but it's pretty bullet proof. Worked on a dredge once (many moons ago) the company had the rack turned up so much the exhaust would glow red about a foot past the turbo. It ran 20 hours a day 6 days a week for years. The only reason it stopped running was because the company bought a new dredge. The most incredible work horse of an engine I've ever seen from Cat.
Yeah great engine. I've rebuild them in 637c scrapper's it has a long life
Man I was waiting for this
Intresting video. Mann is filter(air, oil) manufacturer for Cat. Only hidraulic filters is manufactured by Donaldson for Cat.
the Marine version is even better ;-) full throttle 24/7 for 72 hours, no increase for the exhaust, just running like a Swiss watch. Definitely one of the best engines ever build. We had the PC & the DI. The PC consumed 45 liters and delivered 193HP 24/7full throttle whereas the DI used only 38 liters full throttle and produced 235 hp. Only problem by changing from PC to DI, we had to change the oil brand.. With Castrol, the DI engine consumed oil. the other brand stopped the oil consumption.
I was at the dozer factory in July and saw brand new 3306 mechanical engines going into D6,s
I like C13. installed a 430 hp in a Mack R Model dump truck in 2004, If I remember it was a 6.4 mpg truck, all the other one I worked on were in coaches, not as much fun
Funny story concerning 3304PC engines in 120G graders. One operator was always unable to start the machine during cold weather, and he maintained he always used the glow plugs. Finally, I accompanied him out to the rig one very cold day only discover he never turned on the master ground switch prior to utilizing the glow plugs. OK - problem solved. His machine was upgraded to a 3304DITA, but he faithfully continued to utilize the glow plug switch (after turning on the master switch of course) on an engine which did not have glow plugs!!
Well, he probably didn't turn down a job at NASA to operate equipment I'm going to hazard to guess on that one.
I'm gonna start spray painting my filters white to fuck with the techs
I had a EL240B cat excavator and it had a 3116 engine. The only problem I ever had with the engine was fuel in the cooling system and it ended up needing a new head. Cat service did it on the side of the highway where working.
I also had an EL240B Excavator and it also had a head issue - cracks I think - but a ‘dressed’ replacement head from Cat was only NZ$1300 (cheap for here in New Zealand) meant I was back Logging in no time. I also had a 325A with the same engine and it too needed another head. I think the heads must be weak on them. Otherwise they are a great engine.
On the High Plains of KS OK and TX there are thousands of 3304 and 3306 pumping irrigation water. All were made in the 1970's to run on gas. Cat still sells new ones. I am buying one rebuilt 4 cylinder for $21,000 and another I have to overhaul for about 1/2 that much. You are right about being the best.
Worked on 3304 in the 941b, 3304 turbocharged in the 951c, and 3306 in the 955 and D6. 3304 had a counter balance shaft would break if an idiot was running the loader hard, they could be a real pain to get out. You are correct about dropping valves I worked on Numerous dropped valves issue, sometimes cracked heads, always changed the power pack in the affected cylinder. Found out it was cheaper than the downtime and parts
3306 powered the 235 excavators, generators, pumps, crushers and everything else you can think of. 3 of them in use at a crushing operation I do work for, had one that was 90% worn out and still ran everyday, when we tore it down it had multiple broken valve springs, liners were scored, it was bad, but it still worked everyday.
I'm rebuilding a 3304pc right now. 43v prefix. Serious block issues but we will get it fixed up
Cavitation holes? Sunk liner?
@@AdeptApe I will get pics monday, it's a non spacer plate 3304. Protrusion was -.010 on average so it blew a head gasket. Also had a hole in the block that was fixed at one time. Balance shafts where out of time so it vibrated like a s.o.b. Last guy must have used 25 abrasive wheels to clean the liners, block and head, a real basket case kind of job
Same, waiting for the block to come back from the engineering shop, and it had 0 liner protrusion when I pulled it down
I run a 1999 Kenworth cement mixer 3306, just today I was hauling a full load and I lost power going up an incline on the highway. Wouldn't go over 1500 rpm, on flat surfaces it runs great.
It almost seemed like it was starving for fuel, replaced fuel filters. Old ones seemed clean🤷♂️ I have no idea where to begin.
30,000 hrs 300k miles
I work on 3306s and 3304s all the time out here in Seattle working on fishing vessels. They use them as gen sets.
I worked equipment and marine side. Front seals on equipment had a hack. CAT gave time for radiator removal to facilitate the damper puller. I made a tool out of 3/4 flat iron. Drilled a hole in the center and put a bolt through with a nut holding it, and drilled holes to bolt it to the damper. Put the damper bolt and washer in a few threads. The bolt in the center of the tool rested on the damper bolt. Then start bolts into the damper and slowly tighten them. POP ! Damper off, no radiator removal. I still have that tool.
That is a pretty good idea for a tool.
I'm sure others figured it out, but this was mine. I also figured out how to juice 40HP out of the 3406E and other electronic engines. :)
Dude, you have no idea how long I've been waiting for you to make this video lol Got a 3306 in our DJB 6 wheel dump truck, had to rebuild it because it dropped a valve in number 3 and destroyed the piston. Luckily the wet liner design meant that to get it out, I just put a bottle jack under the con rod with the end cap and head off and the liner and piston popped right out. Wrecked the head but luckily I found one off of an old d6 bulldozer we had laying around. Great video once again, got a lot of Caterpillar engines here in England, nice to see someone that loves them as much as I do lol
I didn't think there were many of these in Europe, but I really had no idea. Thank you for the comment.
I drill a hole in the piston tap it and tie a chain to a hoist.
@@AdeptApe Not so many Caterpillar engines in road going trucks, one I can think of is the Foden Alpha which had the option of a C12 in it. Believe it or not, England is the largest manufacturing base for CAT outside the US. Axles and transmissions are made in Belfast, Wheel loaders are made in Newport in Wales and the Articulated Dump Trucks are made in Durham in the north. Plus Caterpillar recently acquired Perkins, another engine manufacture in Peterborough. Those are fitted into JCB equipment, but still retain the Perkins brand name. Plus Extec and Power screen use Caterpillars or Deutz engines in their screeners and crushers
My uncle was a very well known diesel mechanic in his day. I once went to a machinery auction with him & seeing how things sold, I asked him why the Cat stuff was bringing so much more money. He simply stated, "Because they're worth it". I've never let that thought leave me.
My cat 966c runs perfect with the 3306 engine,it was rebuilt only once in the 1985 ...great engine!
I work in coal mining l drove one of this it was 3306 motor and none stop operation 24/7 10 year's before rebuilt
White Filter: RIGHT?
Arnold: WRONG
The turbo on ours is mounted over the back flywheel housing sideways.
Wicked popular in front discharge concrete mixers for years.
We were fortunate to snag several 3306 “packman” style oil filters. They were black with a grey packman or “C.”
we have a 3306 in a white/volvo dump truck, has a couple broken exhaust studs that are being a PITA to remove, but the thing runs great and isnt terrible on fuel
Never heard of it? Just rebuilt one a few months ago!
I had a friend (he has passed away now) that had a Medium Duty truck that had a 200HP~ 3116 in it (actually several of those things - ugh) and it was a nightmare it was constantly broke down, he had to borrow a truck from another mutual friend to keep his business going...Well he knew a 3306 would NOT fit in his truck without some serious modifications (like add 2 feet of hood!)...He found a 190HP~ 3304T out of a BOAT! and got some different "engine accessories" (Manifold and Adapter housing whatnot) and put that 7L 4cyl in that truck, he said it was slightly lower powered, and shook like a paint shaker, and he eventually had to re-gear the axle but it got phenomenal MPG and was ultra reliable! (I don't think he turned a wrench on that truck for 15 years) - I actually drove the truck with the 4cyl...it was only really noticeably shakey at idle...
excellent......one of the few Cat engines i have anything to do with
Yep, last mine I worked in had two underground locos with 3304 T engines. They where scary fast on the rails. Your hard hat would start to lift at half throttle.
Best wishes all.
This has nothing to do with engine performance, but the direct injected, turbocharged 3306, sounds great, especially with a straight stack. Almost like a V8.
Nice job installing the correct filters for the application. Most Photoshop jockeys just toss a 435-5142 in everywhere.
Thank you Shain, I figured a computer expert like yourself would notice such a thing.
I’m a part of a dinner train that uses a Caterpillar 3304 as a backup generator. We just got a new main generator from John Deere.
CAT makes some great engines and I feel they're very underrated in that regard unless you've owned one. As said, the 3306 and 3304 are some of the best. I have an old 1962 977h crawler loader on the farm for the last 40 years of it's life and the 333D engine that came before the 3306. It has over 19450 hours with no rebulid.....the hour meter died about 10 years ago....should fix that. That machine's done everything from hauling manure, to plowing huge 5 foot + snow drifts to knocking down trees. Love these CAT videos, keep them coming! Gave me a good laugh with the filter....should date stamp it too! haha
Lots of 3306 and 3304’s in boats. I might be getting a 3306 for one of my tugs and a 3304 for my smaller tug.
I agree with the c12/c13 those were the 1st engines I learned to rebuild.
Got an '87 CAT 936 with a 3304 she's cold blooded takes a month of Sundays to warm up in the darker 6 months but other than the gauges failing and the interior falling apart and the hydraulic lines going all the time it's bulletproof
Thanks for the info good to know what to look out for
I guess because we work on a lot of equipment engines I rebuild a lot of the 3306 and 3304 engines . I just finished a 3204 and presently a 3046 . A 3046 is actually a Mitsubishi S6S . They are frequently used in D3 dozers and 963 Loaders .
What's strange is Ford put the 3406B and the 3306DI in their 9000 series trucks .
Rebuilt a pair of the 3208 engines out of a boat a couple of years ago .
Finally, love your videos, 3306 is indeed a great engine.
The oil filter gag was amazing 😂😂😂
Another interesting topic. Electrolysis/cavitation, difference from the two
That is a good topic idea, thank you.
I would love a video on liners! I was curious when or who started using liners. I didn’t have much luck finding information on liners. I just had a IH 1066 tractor with the DT 414 majored. It was liner type engine that was built in 1975. I heard IH had a lot of problems with pitted liners and started outfitting them with coolant filters that had a treatment pill in them that would treat the coolant.
My engine was way past receiving an in-frame and was an out of frame major OH.
Great video. Looking at buying a boat with twin 3306's and your video has given me a lot more confidence. Thank you.
Had a D6R come in last year, was ran out or low on water to a point the exhaust had turned white, and the paint on the head and side of block turned red. Still ran pretty well but was smoking a decent amount. 3 pistons galled pretty bad other 3 were honed and re-ringed and 3 new packs new main and rod bearings and a reseal and away she went.. At the customers request of course... 3306
Theses was OK off road, but I disliked them in a truck. The 63Z engines had head gasket recall, camshaft recall, slipper cam (roller cam was better and fewer problems), servo pin could come out and engine could runaway, cylinder block cracking at the rear cover. Cat tried a non metal impeller on the water pump and it would break and fall off. The 9TL's has two different push tubes and people would mix them up on a Jacobs brake application. They would fold up and snap push tubes. I would put the bigger ones on intake and exhaust so this would not happen. On Jacobs brake engine the valve cover gasket would leak a lot. In a PB you have to loosen and swing the front cross member out to get the oil pan off. You set the Jacobs brake with a circle gauge. Basically touch and turn method. The VTU is a slide advance and you had to pull the front cover to make any major repairs. And the biggest problem was truck salesmen would convince the buyer to get one because it was lighter and do the same job as a 3406 A/B/C. I have one right now, ATAAC and the turbo is discontinued. On JWAC engines bolts are on the inside and you have to take the darn thing apart to remove it off the cylinder head.
My father's 94 t800 had a 3306, put over 30000 hours on it and never had it apart.
Natural gas 3306NA and TA and 3304 were a holiday for a compressor mech. Love em.
Junk on nat gas. When we went to service a 3304 or 6 we always brought a cylinder head and gasket kit. Turbo or not they went through heads like they were going out of style. 3400s are horrible on nat gas same issue. Now 3500 series, that is a different story! Once did an overhaul on one that was original below the heads at over 70,000hrs! It had some original heads on it as well.
@@nathansihlis4866 3500 best gas compression engine ever. With a Ariel behind it. 3300 where easy. You could change a head by yourself if you had to. We used to have some 3306ta with air to air cooler. They would freeze up in the winter. But I usually don’t have too much trouble with the ones I look after. If it had a mag that was the biggest grief.
@@waukesha7042 nice youtube name 😁 Yes I would agree as well. 3500 with a JGK2 is an operator and mechanics dream. It's been while since I worked on them. 13 years now. Dont miss the gas field. It was good work no way I could balance 70-120hr work weeks with family now.
Our D7G had one at 200hp, was a great machine for working fires
I've built many, it is really too bad they didn't design a 4valve concept. I've taken 3304s with bad balance shafts and put pipe plugs in the oil passages and sent them away. That was 15 years ago, and they're still going...
Absolutely great engines! Easy to troubleshoot and very easily repairable!
i have the opportunity to grab a 1993 3306 from one of our old machines at work. needs a bit of wok done to it but to grab a motor like that for free to put in my garage, use it to learn on and hopefully rebuild it with the help of some mechanic buddies that work for beer, i can't pass that up. great video and thanks for the details.
maybe build it into a big nasty rat rod down the road
These are still produced for the industrial natural gas engine market. They are almost bullet proof we easily get 40-50k hours out of one before overhaul. Front main is a common problem but sometimes it’s not actually the seal itself it’s the o ring that seals the aluminum seal carrier that gets hard and brittle.
Great little engines to work on. Me and another guy had piston out and injector pump of in four hours on a motor that ran a generator on a boat. Not too many engines you can pull down that fast.
I have a 3306b in an '88 Marmon 57L. It runs well but only seems to have power at higher rpms. Id like to up the power and add jakes to it. Currently it has a 9spd behind it but im hoping that a 13spd will help in the power department.
Jakes are hard to find for these, can't get new, I would check the FRC and fuel psi first. What is your engine serial number?
had a air to air model in a 88 379, good little engine just not enough horses. jerked it out and put a 3406 back in.
On the heavy equipment side if you ever have a no start likes its not getting fuel the rack loves to stick on them or if it seems like you cant control the fuel no matter what it's doing eg(if your going to park it make sure the rack is off all the way) so how do you fix it take a hammer and smack it on the lever coming out of the injection pump a few times and then try it hopefully thst fixes it for anybody.
*Tap* the rack link
No smacks for the IP
I've met too many operators and customer techs in the field. Words like "smack" mean different things to different people hahaha
another great Cat video...so much to learn...so little time.
Thank you Larry!
3306 , chamber type always have problem with dropping valve . Especially at cyl no5 or no6 . But usually on no5 cyl. Else the coolant enter the chamber from the nozzle oring . Piston pin would break , for the smaller gudgeon pin . There are few models difference till the 3306D.i models .
Shell Oil had a fleet of the 3306B 63Z's in their fleet. KW T800's - lighter weight and did a good job.
First diesel engine I ever rebuilt right here
Have a 87 White with 3306 in it,, well over million and a half k on it. Great engine, dirty though keep the oil changed. Had a 8ll on it should have had a 13 speed or 18, would lose the turbo when shifting had to wait for the turbo to spool up again before it would start to pull again only complaint I have with it
Going to look at a 3306 in a cat d5 that is losing coolant. None in the oil. Where should I start looking? By trade I am an aircraft mechanic so this engine is a golden unicorn to me. Thank You for any advice or help
Was used on old dozer D6 and some old 120G Graders and gensets
120g 3304
Good engine. Lots of parts available. Had to be careful when ordering water pump. There were different gear designs.