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Cummins swap Jeep troubleSHOOTing!
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- čas přidán 17. 02. 2018
- An ACTUAL BEHIND the scenes look at a BUILD in Flying Sparks Garage!!! Yep. The 86 Jeep Grand Wagoneer with the 12 valve Cummins is GETTING LOVE! It just needs to reciprocate, an i right!? Post your diagnosis BELOW!
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Love watching that smile in the evening before bed. It always reminds me, of that magical moment, between that first kiss.....and the pepper spray
Just built a 1995 Dodge ground up. 12v Cummins had sat for 9 months and when cranked it, it sounded and acted just like that. Injectors were gummed up. Took injectors out and cleaned with Coleman lantern fuel. Ran perfect with lots of power after that. Just another suggestion guys. Keep at it!
great update...that cummins sounds like he is sucking air into the fuel line make sure there is no small or big hole somewere had similar problem took ages to find it...it was a crack in the fuel filter deposit.Then bleed the system releasing one by one each inyector and crank until air blows out.
You guys are so happy. It’s a joy to watch you.
I’m betting the Lift Pump is bad, try the trick of restricting the return line by pinching it shut, if the fuel pressure doesn’t raise to +- 60# quickly you’ll know. Naturally you’ll need to install a fuel pressure gauge if it’s not already equipped. Good luck! 👍
That's a cool build. Thanks for the sneak peek into the next episode...
compression and leak test and test your injectors. very important on any diesel engine. great you tube show.
I'm a yacht captain and have never had any experience with 6BT Diamond series Cummins except for in marine applications, so this suggestion might not apply, but I'm sure you have changed the primary and secondary fuel filters and have drained any condensed water out of the bottom of the glass bowls on the bottom of the filters. If there is water in there, it'll look like someone took a Sharpie and drew a line around the glass bowl.
Sounds like it runs ok at low RPM, but dies when it needs a lot of fuel.
I'm sure you have this covered, but I've been caught by not knowing there are two filters in the system in the past.
Really enjoy your family approach to building cars
Keep up the great videos.
Take care.
Capt. Keith
Last summer I bought an 02 Excursion that has a v10. I watch anything I can find on 5.9 swaps. I don't need to build huge horse power just want dependability and fuel economy. I really like the 5.9 24 valve p-pump with the mechanical in cab fuel control. I think a simple 12v version would be the smart move.
Here are a couple of things to check: repair the exhaust leak- make sure the turbo gets enough air and is hooked up to the engine, or it is just too rich. also air getting into the fuel line in the form of small bubbles will also kill it. Many times one pump moves the fuel to a filter and another pump adds much more pressure for the injectors. so we wonder? good Luck, Nick
Always happy n know its gonna be a good week when you guys post a new video .
I love the idea of an Cummins swap jeep or older bronco/blazers
I ran into this problem before and I ended up going through all the things that you have done.
There is a sensor / sender on the side of the injection pump that needs to have 12v power to it. If I remember correctly it should be 1 wire. FYI it's not the fuel shut off solenoid that I am talking about.
I havn't got a clue....just like watching you guys. My wrench experience is more or less limited to starters, alternators, water pumps, hoses, oil changes, clutch replacement, and other minor stuff. I'm impressed with those who can do it all without a Chilton's magazine constantly open.
No idea what’s wrong with the Cummins but really enjoyed watching you both trying to sort it out. Good luck and I can’t wait to see the full show. Mark. 👍❤️
Check your lift pump pressure, if your injection pump is getting starved you'll have issues off of idle, I can't tell from the video but from how the lines look it looks like a ve pump/rotary pump over the p pump, I'd pull the front cover and check your timing, if the ve pump was pulled off another engine and wasn't locked into time correctly it is very easy to get it out of time. The only way to get it back in time is dial indicating it. If it is a p pump the gear will slip on the injection pump shafts super easy if it wasn't installed super clean, and even then I've had them slip timing still. I'd also check on valve lash if you havent. Also doing a compression test and leak down test will tell you a lot also. If you want specs for anything on it shoot me a message and I'll go dig out my service manual
Well... the good part is that those "really cool new glasses" kept the flying fuel spray out of your eyes, the other thing is that you have just about the cutest little hat-thief any shop could ask for!! ;^) I'll be watching for the full length posting with the rest of the solution to the errant Cummins.
love all the expressions and your little helper good luck with the jeep
The melting of the piston is more likely a lean running condition that happens from too little fuel. Usually the combustion is cooled when too much fuel is added. Maybe it leaned out after dropping a valve. Good luck figuring out the issue.
Other way round for diesel
Your little girl is playing the wrenches, I love it.
Wish I knew more about diesels to help you diagnose. But being a fellow CZcamsr, you're "Behind the Build" VLOGs help me diagnose my own failures in filming & editing, so feel good about THAT at least. ;-)
Who ever knew you could play a tray of spanners like a Xylophone ?...lol . The Hat Thief returns ! I don't know much about diesels, but, i'm sure Aaron will work it out . Isn't his day job working on big rigs ? Looking forward to the full episode Emily, Aaron and Hat Thief :) Cheers from Australia :)
as already said in previous posts, check the top end injection timing at the pump. Only other is fuel delivery pressure.
sounds like the spark plugs are misfiring. probably sooty. Just Kidding!😉😋
Check for air in the fuel lines. Also the timing of the pump maybe off as well.
If the fuel pump is on the motor or at least not in the tank check all the line between the pump and the tank. It may be sucking air. It should get worse when you rev it with a small pinhole in the line but still idle somewhat ok. Been there and done that.
Got to be the flux compositor located near the Dilithium Chamber. Good luck Y’all, Love y’alls videos.
Check for cracks in the timing cover housing... Where the injection pump bolts to it the housing can crack and change the timing setting
you need to look at cummins recon they have a few other brand new cummins swap engines over there they come with all the engine stuff the ecu wireing harness and fuel peddle being it is drive by wire also comes with engine managment guageses
I'm guessing it's just playing sick 'cause it's liking all this attention from Aaron and Emily.... btw has anybody leak tested/leak down checked each cylinder ? Keep up the good work !
I going to say that its ether a weak injector or lift pump if its just going bad at higher RPM's
you could put a fuel pressure gauge on it to check lift pump , or pull injectors and at the same time run compression. Hard to tell from from here ..... anyways have a great day....
Sounds like a bad turbo great video thanks for sharing keep up the great work
crack open each fuel line as its running to bleed the system, they love to get a big air bubble right at the bend before the injecter
I may be way off here but at 7:13 it doesn't look like the charge pipe from the turbo is connected to the intake. If the turbo is supposed to force more air into the engine at higher rpms seems the injector pump would be designed to flow more fuel at higher rpms. It might be pumping to much fuel for the amount of air going into the engine?
Nope. Take your gasser hat off, and go find your diesel and report back.
It will run just fine without the charge pipe connected. Won't make much power thou
I'd bottle feed it and see if that changes it. I find bad fuel, clogged lines, bad filters etc that way. Also go buy a pop tester if you plan to do more diesel work, they're a god send. Can't wait to see the next episode.
I'd check the spark plugs. A little hard to find on that model, they're tucked up in behind the retro encabulators, or turbo encabulators, if so equipped...two plugs per cylinder.
if the pump has boost referenced pintle , that moves up and down with boost , is the pintle stuck in the full boost position , so over fuelling because turbo not connected ? nice to see Aaron looking happier :)
regards
robert
It might smell like a bad running furnace but it's a cool Jeep!
Relationship goals
Injector pump timing, you can tell by the smoke !! White smoke is too much fuel !! Seeya Rob
LOVE the Roadkill hat!
Check the fuel lift pump the plastic o ring's go bad and let air in the fuel, good luck guy's
You guys make me smile ty. tell Arron its the fuel pump oh wait pls tell him(Arron) he's a lucky man .oh wait an your lucky too Emily.& Remember to be were your feet are...............
I'm no mechanic and I don't have any experience with cummins diesels. But judgeing by the sound the air/fuel ratio might be off, you say it sprays diesel fumes. I wonder if it's from the exhaust or if it's from the intake. Could a fuel line be leaking? A friend of mine had a leak in the fuel return line.
it is hard to tell in the video if the exhaust is white or black. first thing i would do is a compression & leak down test, i would want to be sure that the engine has good comparable compression on all cylinders. then check fuel pressure and volume to the injection pump, next remove the fuel line from the injection pump and pump some fuel into a clear container looking for air bubbles in the fuel. if it has air bubble find the spot in the fuel sustem that is sucking air by pressurizing the fuel tank and pushing fuel instead of sucking fuel. has the injection pump or timing cover ever been removed? i would bring the timing marks around and check the injection pump for top dead center. if all that is good i would be looking into the injection pump.
Excellent advice.
I was just about to suggest checking the pump timing! I'm not sure where I heard it, but if I remember correctly some Cummins engines don't key the pump drive gear to the shaft, but instead rely on a slight taper on the shaft, and a really big nut!
You however, have made such a clear and concise comment that I will just revert to that good old phrase - "Yeah, what he said!" *;)*
on a 12v pump there is no key way... the gear is presses on with the nut on the end of the pump drive... this is done so you can adjust the timing on the pump. 24v were computer controlled and the pumps are keyed
Its a fuel delivery problem, probably the pump. Thanks Kenny.
Could be bad diesel. Or drawing crap up in the tank. Any filters on the lines from the tank.
Erin can you see now. O by the way you dropped your wrench. Keep at it. Good luck 😉👍👍
turbo isn't connected, so its over fuelling when you give it more throttle?
Fuel not getting up there...unless it's got a computer - it's probably the pump or fuel line delivery, kinda sounds like there's air in there
Hi could it be that the injector pipes have been mixed up one to long or to short just a thought Hope u guys get there all the best great v logs cheers
I have no diesel experience but turbo aircraft engines will do that when running without the turbo if the fuel pump boost sense line (to the aneroid) isn't open to atmosphere.
I would test/replace the fuel pump seems how they are cheap and easy. Also might as well pull the injectors and crank it over to see if any are obviously plugged etc.
Pre inj pump fuel leak (air in the fuel), the timing is off or the pump has a broken plunger spring...one of those three.(in the order I'd chase them down)
I once had a '79 Custom Cruiser with the hated 5.7 diesel. It wouldn't idle, had to keep the pedal down to keep it running. I send the injectors to a diesel shop and they were worn and misadjusted, the shop fixed 'em and I replaced the fuel pump in the meantime. and that made it worse, now it would need the pedal to be pressed all in to keep it idle. it turned out that the primary pump in the stanadyne roosamaster was bad and I had to send the whole thing to the same diesel shop. after that it ran awesome
Sounds like the Timing is off. loosen the pump and advance it. Push the top of the pump towards the cylinder head that will advance it.
Hook up boost hoses
Nope. Has nothing to do with it.
Thumbs up for the wrench chimes
As great a truck as can be built. NICE!
Love you guys, thanks for the video :)..... Loving my Vehicle Super Probe Aaron :).... Love from OZ.
Brett.
Great. I was starting to get a little worried when there was a gap between your videos. Cheers
I know on those engines u have to plumb every individual cylinder multiple times to get fuel up and air out.
Diesels are a whole new ball game. I wish you good luck...that's all I got. :)
looking at the -piston you took out assuming from that engine fucked rings ya up for a rebore of the block
friction melt like that only happens when ya got no lubrication the actual piston, it likely has a timing issue due to misfire..
Have you inspected the sump yet for metal???
the only time I've seen piston damage like that is when the shit has run out of the engine and it not maintained.. and likely due to actual oil is likely the cause of why the piston is well and truly fucked..
I am doing two Cummins swaps. One is a 4bta and the other is an isb/24 valve 5.9L. Both engines are destined for early 1950s pickups.
I am familiar with Cummins. I am a mechanic and my employer has everything Cummins.
There is little or no information to make a proper diagnosis. First simple questions,1) Does the conversion/transplant have a fuel return line to the fuel tank? 2) Is the lift pump, aka fuel transfer pump from the tank to the injection system there and is it working? 3) Fuel filter. If yes, is it clean? 4) Is the engine properly grounded. You will need a proper ground so the power to the injection pump is not compromised by a poor connection. 5) Is there air in the high pressure injection lines? The engine may need to be run longer and with higher RPM to clear the air. I like to loosen the injector line nuts and let any trapped out. 6) Can you tell if someone had "tinkered" with the injection pump? 7) Do you know the engine's history?
is it the hose between filters and injection pump sucking air?
Deboss has great information on diesels give me a lot of info... Keep up the good work guys
look at the valve lash and the timing
the timing on the pump is off... needs to be set at about 15 advanced
EYE LIKE YOUR GLASSES!!!!!!
Possibly getting air into the system or maybe try a compression test.
I think the injection pump timing is off
Sounds a lot like my 4g63 whenever the intercooler line would come loose, losing boost pressure. Would idle rough and not want to rev up right.
You guys want to swap an LS into my S10 when you get the jeep done? hehe. Keep up the entertaining channel!
Sounds like air is getting into the fuel system, bleed the lines right before the injectors
I have never worked on a Cummins. Do they have a stopping flap in the airintake like a lot of European diesels have? It looks like it's behaving like they do when it gets stuck semi-opened (not getting enough air). Alternativly, check the intake for rags 😝
Or, if it's old-school, no computer, maybe the boost reference mechanism on the fuel pump is stuck, giving to much fuel? Would look the same as too little air :-)
I've always wanted to figure out how to get a 12v in a Cherokee.
The lift pump is not supplying enough fuel off idle or restrictions in the pick up line
LOL Arron! #BEHINDtheBuild
Its a 6bt, its supposed to leak.
If its got compression, its gotta be the pump.
2:21 white smoke. Incorrect pump timing
Best part was the wrenchlophone!
Sounds almost like the pump isn't timed right.
I want to say check the oil level.
Fuel timing maybe?
Check the pump timing
knockknock, who dat? Cum inz? Wha, cummins who? Knock-knockknock. Cummins swappers funny
Fuel or air related, bottle feed it, and check for leaks
Also did you do compression check
It's a diesel!! That's the problem.. haha good video.
injection pump need boost to get fuel on high rpm
Fuel Filter? 2cents
Could exhaust blockage or frozen turbo do that?
Dont think pump. Timing maybe, bad fuel. Compression check?
fuel oil on the glasses is the bane of mechanics, for farmers it is hydraulic oil or diesel fuel. the lense cleanse that the eye docotr hands out works pretty good. just saying. probably fuel related like he is chasing. injectors eliinatedso it is probably fuel pump related . size or out put. my guess .
Love it
fuel filter assembly
What fuel pump is on it? Does it clear up when warm if does than needs some fuel timing advance.
Also alot of people Miss cleaning a screen that before the fuel filter but that would cause more a low power.
Also fuel lift pump pressure needs checked could be bad Relief valve . Open lines on injectors to see if one a dribbled. You wand squirters. That fuel should spray out. Before sending inject pump to be checked.
seems like air in system or starving for fuel possible bad lift pump or injection pump
Good little Video. Not a Diesel guy so no Help. I'm sure you will geet it.
Where is the blue nova