stuck allis

glennster · Nov 13, 2009

so the little b i am working on got paint on it, front end all redone, got that put on, figured i would spin the motor over. nope. motor is stuck. talked to the owner, said, well it hasnt run in 5 years or so. sooo...... soaked it for 2 days in pb blaster, now have trans fluid in the cylinders with a block hanging off the crank. sure hope it breaks loose, hate to tear the motor apart now after its been painted. heres a pic when i got it from the sandblaster, and one in color.
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Untitled URL Link

Dean · Nov 13, 2009

Glenn:

Remove the rocker arm cover and tap the rocker arms above the valves with a brass hammer. Most likely, the valves are stuck in the guides.

Dean

El Toro · Nov 13, 2009

I would borrow a bore scope light so you can see inside the cylinders to see how bad they're rusted. You can try using the starter to just to bump the engine to see if it will move. I would pour a lot of ATF on top of the pistons. If everything fails you may need to tear the engine down. Hal

Dick L · Nov 13, 2009

Paint looks good.

I have done several B's but never squirted any color until I had done what is shown in the pictures at the link.

Reminds me of the ad! Total restoration, smokes.
LINK

Dick L · Nov 13, 2009

Cant stand the thought of this being inside a stuck engine which is found in a couple of cylinders on most. Not all but most that I have opened up.

These heads all came from stuck engines I took apart from B's, C's and CA's that I bought over the years.

glennster · Nov 13, 2009

dick, unfortunately, i didnt get a chance to see if the tractor ran. customer stopped by the shop, wanted it painted, he disassembled it and took it to the sandblaster, we picked the tractor up from there. when i originally talked to him he said the tractor runs good and doesnt smoke. never thought to ask him how long ago it ran. the only good thing is the tractor has been stored in a heated shop. just gonna have to leave er soak a while and hope it breaks loose. i 'll get in there with a bore scope like hal said and see what the valves look like. this one may yet come apart and take a trip to the machine shop.

Anonymous-0 · Nov 13, 2009

It might take weeks or months for it to break free. But since it was inside and heated, and only 5 years probably it will. Have a friend who bought a model A (car) short block last summer at a swap meet that was stuck. It is free now, he has been soaking it for the last 5 months. If you can give it some time, and as was said above, check the valves are free.

Anonymous-0 · Nov 13, 2009

I used hot water to free up my JD420 (upright engine). Plumb the bottom radiator pipe from the block to a tank you can apply heat to, fill the block to the top with water and let it boil and cool several times. The head was off mine so I rigged a bar across the block over the piston and used the head bolts to put pressure down. HTH

woodache · Nov 13, 2009

The addition of either Acetone or Keytone
1/4 by volume to ATF will add to the ability of ATF to break free and penetrate.

By filling the block (water jacket) with Anti Freeze and the temp addition of a block heater will speed penetrating action.

Fixed a Fordson Major Diesel that had set with rain water down the exhaust this way. The engine had been overhauled, the guy that owned it died. Sat in a shed with a leak in the roof. It still is now running. couldnt save the injectors though. It came as a freebie though.

Mike Bock · Nov 13, 2009

a new trick i have used is putting shop air into the sparkplug holes 125 psi will put alot of pressure on the piston safely might have to find piston with valves closed to get it to work unstucked a boat motor that way

Anonymous-0 · Nov 14, 2009

I had a B Allis given to me a few years ago that was stuck. I filled the cylinders with Marvels Mystery oil and let it soak for a few weeks and it came loose. Afterward I tore it down to check it out, you never know what may be wrong inside if you don"t.

Anonymous-0 · Nov 14, 2009

Sounds like this guy isn't too smart. I'd hate to do all that painting/work and then have the guy say he's not going to fix the tractor or pay you. Dave

railhead · Nov 14, 2009

Glennster, NO disrespect from me, you know I love your 9 and all but....WHY would you start painting on a tractor before you know it runs good and is mechanically sound. Kinda like wagon in front of the horse or whatever....just wondering.

stuck allis

glennster

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Dean

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El Toro

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Dick L

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Dick L

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glennster

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Anonymous-0

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Anonymous-0

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woodache

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Mike Bock

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Anonymous-0

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Anonymous-0

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railhead

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