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640 Oil Leak

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Tommy (TX)

06-24-2003 15:15:21




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Hello fellers....My 640 has been leakin oil from around the starter and along the sides of the oil pan...Lately the starter has been a real pain....It won't engage the flywheel sometimes and I end up having to pull the starter and extend the starter drive in order to get it to engage the flywheel...I assume its because of the oil gettin on the starter....

My question is...What seal would this be that is leaking? Its not leakin tranny fluid...but engine oil...And what other seals am I lookin at havin to replace as well....

BTW...My oil pressure is around 50 psi cold and it never goes below 35 or so....Would that have any chance of blowin out the seals?

Thanks as always for ya'lls great advice...

Tommy

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Tommy (TX)

06-24-2003 20:38:27




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 Re: 640 Oil Leak in reply to Tommy (TX), 06-24-2003 15:15:21  
Well Mr. Zane...you were correct....I went and looked a 2nd time tonight and I found that tiny hole...It wasn't what I had pictured in my mind nor the same in appearance as the one on my 8N...I stuck a piece of wire in that hole and..struck oil...Probably a good 1/4 quart....

I sure hope that cures that starter problem....its a real PIA messin w/ it...but I've gotten good at it..lol....

Thanks again for your help!

Tommy

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ZANE

06-24-2003 18:10:37




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 Re: 640 Oil Leak in reply to Tommy (TX), 06-24-2003 15:15:21  
There is supposed to be a cotter pin in the "Weep" hole in the bottom of the clutch housing. If this hole were open as it should be the oil could not get on the starter. It would drip out.

It is probably the rear main crankshaft oil seal and it might be possible to replace it with the crankshaft in the engine and it might not be possible. There is the chance too that the crankshaft is worn and wobbling in the rear main bearing and causing the seal to not be able to do it's job. It this is the trouble then the crankshaft would have to be removed from the engine to repair the crank and replace the seal then.

Zane

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Tommy (TX)

06-24-2003 19:15:00




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 Re: Re: 640 Oil Leak in reply to ZANE, 06-24-2003 18:10:37  
Zane..Thanks for the reply...I just went out and looked and there is not hole with a cotter pin anywhere to be found....

Tommy



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Rob

06-25-2003 09:11:55




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 Re: Re: Re: 640 Oil Leak in reply to Tommy (TX), 06-24-2003 19:15:00  
Who you talking to? Zane? I don't see any reply from Zane. Am I missing something?



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