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Ford GAF tank engine, test-running after a complete overhaul.
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- čas přidán 8. 02. 2020
- In this video you can see a test-running Ford GAF engine. This Ford GAF has been completely overhauled by us. This will be the engine of the M26 Pershing. Engine smokes when on throttle due to that the mixture to rich, currently settling down the correct fuel settings
The Ford GAF engine is an American all-aluminum 32-valve DOHC 60-degree V8 engine engineered and produced by the Ford Motor Company just before, and during, World War II. It features twin Stromberg NA-Y5-G carburetors, dual magnetos and twin spark plugs making up a full dual ignition system, and crossflow induction. It displaces 1,100 cu in (18 l) and puts out well over 1,000 pound-feet (1,400 N.m) of torque from idle to 2,200 rpm. The factory-rated output was 500 hp (370 kW) at 2,600 rpm.
The GAF powered the M26, M26A1,T28/T95 Super Heavy Tank, and M45.
Let us know in response below what you thought of this video! If you liked this video, don't forget the like;)
Originally these were DOHC, V12, 60 degree airplane engines, but Ford lopped off 4 cylinders to make them V8s for the Sherman tanks. That was after Ford found out the contract was already awarded to Rolls Royce for the fighter plane engines. These were much better than the 9 cylinder Radial engines the Sherman tanks originally had, and much easier to work on than the 30 cylinder diesel Chrysler engines. These were the best Sherman tank engines. The Army maintenance crews all agreed on that. Pretty impressive engineering for 1941! No Cam belts or timing chains either! 500HP and 1000ft lbs of torque and it was the lightest Sherman engine by many thousands of lbs as it was an aluminum engine!
The 30 cylinder Chrysler engine was 5, 6 cylinder gas engines linked together. The diesel version was the 6046 twin pack which was 2 Detroit Diesel 6-71's linked together.
ford gaa sherman tank engine , technology ahead of it's time
Paid for by the taxpayer in the USA while Ford Germany was making war material for the Nazis at the same time.
Ford was going to be a winner no matter which side won WW2.
Ditto GM.....
The big boys know how to play the game...
It looks badass with the flames coming out of the exhaust manifolds.
Nothing sounds better than a Ford
Sounds like a flat four cylinder
A chevy does...
@@eccentricsmithy2746 nope
I firmly believe it would sound MUCH better if it had a dual plane crankshaft 😊
What about a 2L Honda, so boss
Definitely ahead of it's time, 1100 cubic inches, all aluminum, double overhead cam, flat plane crank, pretty damn cool
Amazing engine. Thanks for posting this.
That flywheel is quite unnerving
Thing would tear a hole into a new dimension if it flew off
It weighs 150lb
@@ownedpatrol😂
It's nice the guys have ear protection but crazy they are running it indoors with no lung protection or pipes to run the exhaust outside.
Imagine a F650 With this engine
An F100 4x4 😂
At last, a first run after rebuild with some cooling for the engine 😊
Tank you.
Love the Bossman's grand entrance @ 2:00, great stuff... *Edit: HANG ON JUST A MOMENT THERE!* @ 5:44 Am I seeing things or are the _exhaust outlets expanding and contracting on the overrev??_
Sounds like a flat four cylinder, presumably on account of the 60 degree V?
That is, until he idles it way down.
Guessing it sounds like a flat head 4cyl is because it's a flat plane firing order. I believe it fires 1-8 unlike the odd firing orders of modern v8 engines.
@@EPstroker I was guessing flat like a Subaru, but your explanation of a flat plane crank, helps to clear my doubts about the sound. Yes, like a pair of inline 4 cylinders...
@@charlesangell_bulmtl Flat plane crank is same reason why GT350 sounds nothing like its Mustang GT sibling and the C8 Z06 sounds nothing like its C8 Stingray sibling.
Actually, with the flat-plane crank, it fires like 2 inline-4's, with the second bank 60°out of synch. The firing profile on this engine is 60°-120°-60°-120°, etc.... Each bank is essentially a separate 4 cyl. engine, with it's own distributor, and an even-firing profile which maximizes exhaust flow. There is no crossover pipe needed on an engine with this type of architecture.
Ferrari does a similar thing on it's V-8's. Since the only way such an engine can have an even firing profile is when it is a flat-8, they have made their V-8's in many different angles, some less than 90°, some more than 90°, depending what works best with the space available.
Sure like to have one of those
That right
And on the 8th day God created the V-8.
M26 pershing engine.
Cool beans X 1000
Kinda ironic, that Ford GAA running in front of a German 'big cat' panzer 😉
would love to put that in a ford F800 and see what the MPGs would be.
Is it using vapor carburators? What are the exhaust manifold pipe under the carbs, is it a vapor set up? Man, flat plane V8's sound so weird compared to cross planes....
It's also a 60° which puts it out of balance.
@@slowstang88that's why the massive flywheel 😂
It's fuel injected
ok got it.above
If you put a superchager on it, how much horsepower and Nm of torque does it have and still be reliable on a 40-50 tones tank?
The crankshaft is the weakest point of the engine, it can handle up to 900 hp. The maximum power ever achieved with a GAA is 2500 Hp a 4000rpm with special (thicker) crankshaft with 1 turbo per bank, so in total 2 turbo, blower, electronic ignition and on methanol. In addition, the rest is of course not built for it, such as the gearbox, differential and final drive, etc.
@@BAIVBV. Wow, that's extreme reliability, forged steel pistons, rods and crankshaft can handle it.
Jesus! I'm affraid to ask how much gas it burned while filming it?
Gallons per mile while in the Sherman.....
About 4 gallons 😂
does not matter in war !!!! DUUUUUHHHHH!!!!!!!!
Google
PLUTO..
pipeline under the ocean...
and the Redball Express..
@@wilburfinnigan2142
You telling me it's not for a 69 Mustang fastback?
No it’s bigger than the cars whole drive system
There was a mustang with one in it
Yes some madlad stuffed a GAA into a mustang sometime
Banned engine re drags in the USA.
If you turned up with one pre ban...you won!
@@JakeTheTankmaster
Wish some people could get answers to these questions but I don't think they will because it would be taking business away from them who built it... funny how some people want help other fellow enthusiasts
bruh where tf can u even get one of these monsters
Believe it or not there still lying around in places. Old tanks military junk yards etc.
Will the smoke lessen as it’s broken in or is that its nature to belch that much?
Its smoking is normal because it's a Ford ......duuaaa
Why so much smoke.
The GAF was a newer version of the GAA
6.25 Are you sure you overhauled it? Its is an impressive, but odd engine. The crankshaft has no split cranks to compensate for the 60 degrees, it runs rough, so we put an heavy flywheel on and why 2 camshaft for this 2600 rpm?
1991 F800, 10 ton rockwell front and rear, suspension undecided ie probably fully custom, with an Allison 4500hs trans plugged into a twin turbocharged GAA capable of 4000 rpm. Thats the vision. Any guess on the price?
whatever number comes in your head double it. but thats kinda what im looking at. according to dimentioms a gaa will fit in a m35 hood with no mods but i wanna put a detroit blower and twin holleys and individual hood exhausts...should run good low compression means it can handle a half atmosphere like 7 psi no prob and fueling sucks stock anyway....stock carbs can do 600+ hp with inly governor mod id say with 7psi and quality carb 1000 hp reliable is right on
Why not build a diesel for the F800?
I think the GAA are beyond cool but they’re not cheap. there is one on eBay for 30k, I see several Allison v1710 v12s, actually a surprising amount of large tank engines. There is an article about a rolls Royse v12 from a meteor tank for $5,900!
I don't think it would last very long 😢
Fresh overhaul and it smokes like that?🤔🤔🤔
Needs load put on engine.....
to put pressure on the rings forcing them out against the cylinder walls to "seat" them and grind them down so they "wear in" and seal properly.....
Pretty standard until the rings get seated.
@@PatriotPaulUSA
Hmmm?
Seen few DB605 inverted V12s on a first start after rebuild and only the slightest puff on 1st start.
Not so a Merlin though, which always likes to throw out a cloud of smoke even when bedded in☁️☁️☁️
How many people were hospitalized with carbon monoxide poisoning after the filming of this video?
It weighs 1500 lbs, not bad, drop it into a 70s F350
What crank pin offsets used in this? Sounds wierd
It's an even firing V8.
makes it more torqey
whats the carb setup doesnt look stock
Yes, that is the stock side draft carburetors. The GAA, Sherman Tank model had downdrafts.
Where do you find parts for this?
Good question
I don’t know
@@Leatherface123. napa ? rock auto ?
Sure is doing a lot of unnecessary smoking for being a freshly rebuilt engine
Bro it’s from the 40’s
This isnt a ls engine it takes time for the engine to heat up and most tank engines produced a lot of smoke regardless of what was happening.
Things need time to break in on a brand new engine rebuild, Rings wear in etc. Besides, Its a Ford 1941 all aluminum, DOHC 60 degree, flat plane crank, V8 engine designed in the 1930s! Its pretty freaking incredible! The aluminum alloys back then were not near what they are today either. I'm sure this had cast iron cylinder sleeves but its pretty remarkable tech for the late 1930s. It was by far the best, of the 3 or 4 different engine types that Sherman's had, the Army tank crews told us that.
Obviously got faulty plug or ht lead or perhaps fault valve or cracked head
You must be the greatest CZcams mechanic ever 🤣
Merci, monsieur pantalones intelligents!
60° V engines never did run 'smoothly' though in comparison to a 90° yolk.
I notice in a comment that its technology was 'way ahead' for its time?
Hardly when you consider the Grand Prix tech of Mercedes & Benz race cars of 25 odd years previously.
Vertical shaft overhead camshaft drive was already old school and chain driven overhead camshafts were the norm way before the 40s.
The cams on this engine were driven by a worm gear.
@@DustyPeppers-ct1kq
Correct.... driven by 1 vertical shaft per bank directly off the front of the crankshaft.
The 1914 Mercedes engine had a vertical shaft but with bevel gear camshaft drive.
@@WeeShoeyDuglessAnd they were mass produced?
@@DustyPeppers-ct1kq 30,000 of them were made !!!! !
@@DustyPeppers-ct1kq
Mercedes produced (an uprated version of) this engine for aircraft during the Great War so, i suppose, for the time, it certainly was mass produced.
Cool...how much power do these make?
New they were rated for 500 hp and 1000ft/lb of torque.
These made 500hp and 1000ft lbs torque out of these Ford, DOHC all aluminum, 60 degree V8s that had no timing chains or belts. Designed in the late 1930s! These were originally V12 aircraft engines that is why they were all aluminum. Rolls Royce already had the fighter engine contract so Ford lopped off 4 cylinders and made them the best Sherman tank engines that were ever installed. Supposedly about 30,000 of them. The Sherman's originally had used a 9 cylinder radial airplane engine and a 30 cylinder Chrysler diesel was also used but was said to be a nightmare to try to service. The Army mechanics and tank commanders loved the GAA Ford tho.
@PatriotPaulUSA let me guess you got that same random video in your recommended this morning to? You nailed the history of the engine 😂
I'd throw that thing in a Tesla
Needs pipes
Civic si swap
Sounds out of timing
Totally normal for the crank and cam design
Shows how little YOU know......