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Engine siezed

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Peter Rumble

08-05-2001 12:45:05




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I live in New Zealand and have just purchased a 1948 Allis chalmers with a siezed engine...I undid the plugs and found that two of the plugs had rust and two did not (from the radiator back that was plug 2 and 4) I sprayed WD40 in and so far nothing has happened (still no movement) I have heard that filling the whole engine up as fas as you can with diesel can free up the engine...True or false...I am just wondering what to do in this case and would be grateful for the help.

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Peter

08-20-2001 23:14:43




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 Re: Engine siezed in reply to Peter Rumble, 08-05-2001 12:45:05  
Well guys...heres how I unstuck the old girl
I took the head off after feeling as though I was getting nowhere..and taking your advice. There was a lot of water in the cylinders which I didnt know about and no amount of oil or diesel was going to shift that. all four pistons seemed to be about half way down the bore,
also a lot of rust..which scraped off ok and has left no marks on the pistons or sleeves.
the area which forms the combustion chamber (top of the head where the sparks plugs go) also had rust and some valves also look to be rusty - one has a chip possibly caused by rust.
I drained the oil and filled the whole thing up with diesel as far as it would go (some overflowed or drained out of the oil pump? possibly and came out near the back of the sump I think. I also filled the cylinders with diesel and let them sit. Each day I would put her in third and rock the back wheel and tap tap all the way round the pistons with a block of wood.then I mixed oil with the diesel and kept up the ritual
Today when I got home I noticed that three of the four cylinders were dry meaning that they were draining through- I sprayed some penetrating oil in and did the same thing and then noticed that possibly the ring gear where the starter motor plugs in was moving...So I got the crank and gave here a turn and guess what - it turned over as sweet as!
I was very happy and excited and felt as though I had really accomplished something and it is thanks to the forum and you guys who offer advice to first time restorers like me.
THANKS FELLOWS!
Peter Rumble
Tirau New Zealand

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Paul(IN)

08-15-2001 20:29:04




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 Re: Engine siezed in reply to Peter Rumble, 08-05-2001 12:45:05  
It seems like alot of good advice here Peter,I'm challenged by the same thing and was wondering if you got it free and what worked?



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Peter

08-10-2001 14:58:55




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 Re: Engine siezed in reply to Peter Rumble, 08-05-2001 12:45:05  
A bit more info on the tractor
I only purhased this tractor about three weeks ago and the former owner couldnt tell me much about it except that it had been outside for about 4 years and ran when he parked it there. he had purchased it about 9 years ago after it was restored...(they had a different seat and fenders)She had been vandalised by children and had the oil filter, air cleaner,fuel filter bowl, temp and oil gauges all bashed and broken,wiring stripped, magneto stolen. But apart from that she looks quite good and is an easy restoration because she is in good condition. I paid NZ $380 for her which is about US$161.25...not too bad!I drained the sump to fill her up with diesel yesterday and discovered some water about a cup full and about 2 cups of what amounted to a kinda greyish sludge inside..other than that the oil was not too bad...does this mean I am wasting my time with trying to free it up. I took the plugs out and filled the cylinders with diesel and then simply poured diesel in through the oil top up intake on the tappet cover...after a while I noticed it pouring out through the back of the engine around the flywheel...at the base of the engine adjacent to the sump cover. Is it possible it was coming out of the oil pump...or do I have something else I should worry about?
This morning I also took the fuel tank off and drained that (full of water and sludge as well.
I appreciate your comments and thanks for taking the time
Kind regards
Peter Rumble
Tirau
New Zealand

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Wonderboy

08-09-2001 15:23:53




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 Re: Engine siezed in reply to Peter Rumble, 08-05-2001 12:45:05  
Here is how I unstuck my WD 45. I removed the spark plugs and filled the cylinders with penetrating oil.( I used a product called FREE) Kroil is almost as good. Put spark plugs back in and let it sit for a day. Take plugs back out to relieve compression. I removed the starter to get to the flywheel. I used a straight tire tool with the flat blade end on the last tooth on the flywheel I could reach. I also had a two foot pipe on the end of the tire tool. This sounds ridiculous, I know. I pried one good pull, then I went to the other side of the flywheel and pried the other direction. It popped loose on the first pull on that side. Be careful not to slip off the flywheel tooth. It is easier than its sounds. I am no good at explaining things, but my tractor was stuck for ten years. I pried the flywheel for ten minutes. It now runs like a champ. Of course if your tractor doesn't have a starter,I am wasting your time. Good luck.

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Tom Miller

08-08-2001 03:14:32




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 Re: Engine siezed in reply to Peter Rumble, 08-05-2001 12:45:05  
Do not pull the head until you absolutly have to. just pull the plugs and spray the best penitrating fluid in each hole and put in 4th gear and rock one rear wheel back and forth real hard. It might take a while. Or if you are real impatient, pulll the tractor out one the pavement and let the clutch out, but don't drag the tractor. I have had luck with both ideas.



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mike-IA

08-07-2001 19:40:13




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 Re: Engine siezed in reply to Peter Rumble, 08-05-2001 12:45:05  
my neighbor had a guy with a heavy duty hydralic pump come here and un-stick a farmal m that hadnt run in 25 years.--they filled the cyl with grease, screwed the hyd. hose in the spark plug hole in and ran the pump. 10 min later it would turn over w/ starter. good luck.



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Orin (NC)

08-06-2001 19:14:30




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 Re: Engine siezed in reply to Peter Rumble, 08-05-2001 12:45:05  
Peter, I'm no expert but we just got our engine unstuck this evening. We used a mixture of 1 part Marvel Mystery Oil and 3 parts diesel fuel. We completely filled the crankcase with the mixture, removed the plugs and filled the cylinders then let it sit for a day. We then removed the starter so it wouldn't add to the drag on the engine, placed the transmission in 4th gear, and started rocking the tractor by pushing on a rear wheel. For the past 5 days I've gone by where the tractor is stored and rocked the thing for 5 to 10 minutes each day. This evening I started rocking it again when all of a sudden it just broke loose and started to turn. I then replaced the starter, connected a battery and gave her a whirl. Engine turns over nicely now and compression is building on each cylinder. We're rebuilding the carb. now in hopes to fire 'er off on Wednesday. Hope this helps and good luck with yours.

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john

08-06-2001 12:50:07




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 Re: Engine siezed in reply to Peter Rumble, 08-05-2001 12:45:05  
Probaly rust on those because of open valves and no cover on the exhaust pipe. Take the head off and see what the real reason is.



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Peter

08-12-2001 15:04:15




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 Re: Re: Engine siezed in reply to john, 08-06-2001 12:50:07  
Yes John you were right!



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Tyler(WA)

08-06-2001 10:24:59




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 Re: Engine siezed in reply to Peter Rumble, 08-05-2001 12:45:05  
WD-40 is a "water drier" that was developed by the government. It was actually the 40th solution that they attempted (hense the name WD-40.)

There are a LOT of better things to bust loose a stuck jug with. PB Blaster is one of the best but other things are ATF fluid, Coke, Kroil, Penetrating oil and just plaid light oil. You're going to have to pull the head anyway so you might as well do it now so you can see what you're up against.

Use a block of wood that's just smaller than the cylinder and tap down the high cylinders as you go. A few taps a day will make for a lot of progess with that stuck engine.

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Brian G. NY

08-07-2001 08:38:57




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 Re: Re: Engine siezed in reply to Tyler(WA), 08-06-2001 10:24:59  
With the head removed there is nothing to hold the sleeves (in a sleeved engine) and while driving down one piston, the whole sleeve and piston ass'y could pop up in another cylinder. If all cylinders are seized badly, it may be necessary to remove the engine and take out the crank so that each piston can be driven out independently.



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