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8640 oil contamination

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Walt

03-13-2003 19:28:48




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I am looking for some advise in regards to engine oil being contaminated by anti-freeze.
I always get my oil analyzed the last 3 oil changes have been high sodium levels indicating anti-freeze.
Has anybody had a similar condition and what cured it?




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easyboy

03-14-2003 19:43:09




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 Re: 8640 oil contamination in reply to Walt, 03-13-2003 19:28:48  
i had the same prob in a 8650 finaly it filled up the crank case and shot out the dip stick while in use .i tore it down it was crack between the cylinders at the top of the block ,yea thats what i said , so 9000,00 dollars later and a weeks work im going again with a 60 series engine, o by the way it only had 3000 hrs on it , hope its not your problem good luck



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Bob

03-14-2003 15:34:46




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 Re: 8640 oil contamination in reply to Walt, 03-13-2003 19:28:48  
Another possibility, although rare, is the engine oil cooler.



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G Taylor

03-14-2003 08:13:06




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 Re: 8640 oil contamination in reply to Walt, 03-13-2003 19:28:48  
If you want to limp it along with frequent oil changes to prevent bearing damage. Changing the antifreeze to propylene glycol after flushing from the ethylene glycol will go a long way. The stuff is none poisonous if spilled. And does less damage to the lube oil and the bearings. Tap water is full of dissolved minerals that clog cooling systems. Use distilled or demineralized water. Use of straight water in the cooling system is not a good idea. Hot water with traces of oxygen, exhaust by-products etc and circulated around dissimilar metals is an effective solvent. It's a shame the Deere engine and chassis engineers didn't get together and avoid the problem on the articulated 4WD's . That 619 engine wasn't built to be a stressed structural member like a two cylinder engine.It was supposed to be supported like a highway tractor engine. Twist it and the gasket mating surfaces move and the crank no longer lines up with the block bearings. Wouldn't mind a 6030 on radial duals with a 619 transplanted in.

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Walt

03-14-2003 09:06:12




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 Re: Re: 8640 oil contamination in reply to G Taylor, 03-14-2003 08:13:06  
Thanks I;ll use your advice



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Bill

03-14-2003 06:35:56




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 Re: 8640 oil contamination in reply to Walt, 03-13-2003 19:28:48  
Yup I been there, it was no good news, it could be head gasket,and probably is; them 4 hoofers 8630 40 and 50 series are common users of head gaskets; ours was packing around sleeves which means an overhaul; might try some stop leak that works for about a year, just had dealer put head gasket in 8650, that wasnt so bad except you fix every thing else thats wrong along the way, cost me 13000.00 by the time I was done, next time Im going shoot it and put it out of my misery,;;; Good Luck Bill

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Walt

03-14-2003 07:02:23




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 Re: Re: 8640 oil contamination in reply to Bill, 03-14-2003 06:35:56  
Thanks Bill, I feel about the same way as you, I might just change oil more often and drive it until it packs er in and then I'll upgrade to a newer model rather than putting out a pile of money. Thanks Walt



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scottAR

03-14-2003 17:49:40




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 Re: Re: Re: 8640 oil contamination in reply to Walt, 03-14-2003 07:02:23  
If you can find some Power Up engine oil additive you WILL NOT get crankshaft damage from having antifreeze in the oil. And that's no BS!



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Walt

03-14-2003 18:27:36




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 Re: Re: Re: Re: 8640 oil contamination in reply to scottAR, 03-14-2003 17:49:40  
Thanks a neighbour sells it i'll give it a try



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