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Harry Ferguson Tractors Discussion Forum
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Joining the water in the oil crowd

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Tom H.

04-03-2005 18:25:21




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Just when things start going okay something else gives. A few weeks ago I bought a 7' back blake for my TO 30 to do snow cleanup in the driveway and for this spring when it needs to be regraded.
Well, as I was pulling some snow at near idle power there was a clunk and a sudden stoppage of the engine. It would not crank over and as I feared the worst we towed it over to the garage and drained and dropped the oil pan. The oil was a little milky, but, I have had condensation problems with that in the past. Also there were no parts sitting in the bottom of the pan so nothing had broken. Okay here is were I am now.

After changing the oil and putting in 2 qts of Marvel Mystery oil, plus about a 1/4 cup down each cylinder I have got the engine unseized, but it won't turn over quick enough to start. So today I have pulled the pan, head and pistons. The #4 connecting rod bearings are really scored badly and I think that is what led to the seizing. There is also some antifreeze droplets around the inside of the crank area. I am getting a puller to get the sleeves out tomorrow and fearing the worst I am expecting to see some cracks in the sleeve area. Is it by any chance common that the "O" rings give out after 50 years and they are all that need replacing?

Sorry a bit long winded, but I just spent an hour looking through the archives for more info on this.

Thanks,

Tom

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Tom H.

04-05-2005 06:36:35




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 Boy was I wrong in reply to Tom H., 04-03-2005 18:25:21  
After a bit of thinking about all of you who had cracks in your blocks I went out this morning and took some cleaner and really looked at the block. Yup, 3 cracks right were they should be. I am now looking for someone nearby who can furnace weld this back into shape.

I didn't get off as easy as I had hoped.

More later when I get into the job.

Thanks



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gshadel

04-05-2005 07:24:28




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 Re: Boy was I wrong in reply to Tom H., 04-05-2005 06:36:35  
Ouch! sorry to hear about your bad luck... been there. You can probably thank the previous owner for either overheating, or not using antifreeze and causing the cracked block. Not the end of the world though, pretty common repair. I ran a can of block sealer thru the engine when I first started it back-up to make sure everything sealed tight. Cheap insurance! The manual recommends vasoline on the orings to re-install sleeves. Clean and buff the lower tapered sleeve holes in the block with fine steel wool or similar. Grease-up the orings, and the sleeve should press right in place with the palm of your hand.

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Mr Chapp

04-04-2005 17:21:53




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 Re: Joining the water in the oil crowd in reply to Tom H., 04-03-2005 18:25:21  
Tom..lube the crank side of the bearings. I like either S.T.P. or assembly lube. A light coat of vaseline on the o rings is good. OIL EVERYTHING... it can't hurt, if in doubt. Thankfully, my problems are smaller than yours at this point...Good luck, have fun, Mike!!!



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Tom H.

04-04-2005 18:55:05




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 Re: Joining the water in the oil crowd in reply to Mr Chapp, 04-04-2005 17:21:53  
Thanks for the help, I thought that there was some kind of assembly lube for the bearings. When I changed them out two years ago I just wiped some oil on them before I set them in place.



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gshadel

04-04-2005 07:22:30




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 Re: Joining the water in the oil crowd in reply to Tom H., 04-03-2005 18:25:21  
Those O-rings can definitely start leaking antifreeze, hopefully that is your problem. I wasn't so lucky, had a crack on the bottom of the block between #1 & # 2, didn't see it until I pulled the sleeves and cleaned all the gunk out of the water side of the block.

If you haven't already done it, better pull your crank and check both sides of your crank bearing shells. Mine were pitted real bad on the upper side... I'm guessing from getting condensation in them, while the bottom (cap) shells looked OK.

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Tom H.

04-04-2005 15:43:15




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 Re: Joining the water in the oil crowd in reply to gshadel, 04-04-2005 07:22:30  
I pulled the sleeves out this afternoon and was happily surprised to not find any cracks. The O ring at the bottom of #4 cylinder was split on one side and I hope that caused the water leak. The rear main bearing had spun around and that was the reason for the seizing I am sure.

I am almost ready to split the tractor and have the crank I bought on Ebay checked for tolarances. New bearings and a few hours of work and I should be ready to go.

Are there any tricks to the O rings during the installation and do you lube the bearings at all when they are put in?

Thanks,

Tom

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Gerald J.

04-04-2005 20:58:11




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 Re: Joining the water in the oil crowd in reply to Tom H., 04-04-2005 15:43:15  
Lubricate the o-rings with a soapy lubricant approved for them. Ask for it where you get the o-rings.

I used molykote grease on the bearings of the last engine I built. It ran a long time. I'd rub a thin film of molykote grease on the inside of the sleeves too.

Gerald J.



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