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Fordson Tractors Discussion Forum

Fordson Major diesel Troubles

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Peter Scott Aus

08-04-2007 07:25:41




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Smoke from the radiator, water from exhaust port, Head reconditioned. Would love some ideas.... thanks




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dwol

08-06-2007 09:03:36




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 Re: Fordson Major diesel Troubles in reply to Peter Scott Australia, 08-04-2007 07:25:41  
Sounds like a cracked sleave, or sleave with a hole burned into it. A worn oring would not allow the water into the chamber, only the sump.
Regards,
Dave



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Peter Scott Australia

08-27-2007 16:11:55




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 Re: Fordson Major diesel Troubles in reply to dwol, 08-06-2007 09:03:36  
Thanks again, looks like I have to remove the sleeve.



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DAO

08-05-2007 10:39:58




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 Re: Fordson Major diesel Troubles in reply to Peter Scott Australia, 08-04-2007 07:25:41  
IF YOU USED A COPPER HEAD GASKET TO REPLACE THE HEAD, YOU NEED TO RETORQUE AFTER IT HAS BEED RUN AT OPERATING TEMP.THE COMPOSITE GASKETS TEND TO SEAL BETTER.TRY TAKING VALVE COVER OFF AND SEE IF THE HEAD BOLTS ARE STILL TIGHT IF NOT GET A NEW GASKET AND DO OVER.



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Peter Scott Australia

08-05-2007 16:23:15




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 also thanks in reply to DAO, 08-05-2007 10:39:58  
Head torque correct torque. Lost water into port just turning it over.I've done quite a few heads on petrol engines on cars over the years and never had a problem but I'm ignorant of what's in the block of this one.
regards
Peter



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W R

08-05-2007 02:43:23




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 Re: Fordson Major diesel Troubles in reply to Peter Scott Australia, 08-04-2007 07:25:41  
Check the sleeves for correct protrusion above
the block and also for cracks.
The correct sleeve protrusion is important on these engines.



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Peter Scott Australia

08-05-2007 16:15:58




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 thanks in reply to W R, 08-05-2007 02:43:23  
Correct sleeve protrusion 2-4thou



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KEH

08-04-2007 11:17:47




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 Re: Fordson Major diesel Troubles in reply to Peter Scott Australia, 08-04-2007 07:25:41  

I've never owned one so I'm guessing in hopes of giving you some ideas. Could you have a bad head gasket? Is there water in the crankcase oil? Sounds like it could be a blown head gasket letting water into a cylinder which is pushed out when engine cranks. If smoke is white it is steam caused by water in cylinder being boiled off. If engine is hard to turn over it would indicate water in cylinder. This is bad, compression could damage piston. Would like to hear what it is when you find it.

KEH

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Peter Scott Australia

08-04-2007 13:59:04




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 more info in reply to KEH, 08-04-2007 11:17:47  
Hi, thanks for your imput KEH. Here is some more info. No, the smoke is actually exhaust smoke coming from the radiator. The water is in the sump and coming from e port 3. Before installing the head I had it reconditioned and pressure tested. thanks

Peter



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KEH

08-04-2007 15:27:48




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 Re: more info in reply to Peter Scott Australia, 08-04-2007 13:59:04  

My limited reasoning was off on the smoke, I realized after thinking about my post.
There has to be some escape of combustion gases into the water jacket. Could there be a hole in the cylinder wall? I'm thinking of a sequence like this: Engine is cranked and combustion pressure pushes gases into water jacket and out the radiator. Then the tractor is shut down, cools off,pressure in cylinder drops and water leaks into cylinder. Then when engine is cranked again water is forced from cylinder into exhaust port. That dosen't explain how water is getting into the oil, though. I would think that water could only get in the oil from a crack somewhere. I'm still suspicious of the head gasket since that has been the source of water in the oil for me. Does the water in the radiator boil out quickly? An engine did that for me and it had a blown head gasket. Hope my ramblings help you think of a solution.

KEH

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jddozermike

08-12-2007 12:58:13




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 Re: more info in reply to KEH, 08-04-2007 15:27:48  
yes , but the water could leak past the rings into the crank case in this scenareo.



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Peter Scott Australia

08-04-2007 23:39:17




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 Still looking in reply to KEH, 08-04-2007 15:27:48  
Yes,it all looks bad. The water actually pumps out of the exhaust port as the motor runs, so it is soooome leak. The gas is obviously doing the reverse. I have been told of a water seal at the bottom of the cylinder sleeve but I don't know anything for sure.
thanks
Peter



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matt(pa)

08-06-2007 08:26:29




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 Re: Still looking in reply to Peter Scott Australia, 08-04-2007 23:39:17  
There are o-ring seals on the bottom of each sleeve. Apparently the seats for these seals have a habit of rotting away, which leads to lots of water in the crankcase. At least that is the case with the Super Major. Friend of mine talked to a few old diesel mechanics while rebuilding his FSM, and they recommended applying JB weld around the bottom of the sleeve once the o-rings were in place. I saw the work, and it looked good, but I had my doubts about the longevity of such a solution. Seemed like a bandaide fix to me. Anyway, he has been running that tractor hard now for many years without a problem. Shows you what I know!

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Peter Scott Australia

08-27-2007 16:16:29




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 Re: Still looking in reply to matt(pa), 08-06-2007 08:26:29  
Thanks for all the imput, I will dismantle it when I have some time.

thanks

Peter



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