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Want to fire up my John Deere 70 diesel
:

been sitting for 4 yr

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andy

03-19-2003 21:46:37




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An old John Deere 70 I bought has been sitting for 4 years and I am ready to begin work on it. It might even be "slightly stuck". Ran when I bought it but it needs work. Oil in water and seems to "slobber" oil out the muffler. Well, before I tear it down I would like to start it up. Would like to "soak" the cylinders up some. How do I get oil into the cylinders with no spark plug holes? Any other ideas? I think the head gasket might be bad. Thanks. andy

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Blksmok

03-20-2003 11:51:18




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 Re: Want to fire up my John Deere 70 diesel - been sitting for 4 yr in reply to andy, 03-19-2003 21:46:37  
Andy....If the pony engine works on the 70D, I would simply drain the old oil and condensate out of the crankcase and then fill it with new oil. Then you should motor the main diesel engine at low rpm and no compression for several minutes with the pony engine. You should be able to build oil pressure to lube the top end and be splashing oil on the cylinder walls before you take it up to 200 rpm (full throttle on pony) to go full compression and start the diesel. You can remove the injectors, but I'm not sure what you would be accomplishing.

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cole in mo.

03-20-2003 00:27:32




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 Re: Want to fire up my John Deere 70 diesel - been sitting for 4 yr in reply to andy, 03-19-2003 21:46:37  
If it ran when you bought it and its not stuck now, it shouldn't be no problem to start it back up. you can put oil in the cyls. by removing the injectors, drain the condensation from the crank-case before trying to start. But I dought if the problems you stated were wrong with it have healed up any the past 4 years. why not just pull it into the shop and tear it down? gonna have to anyhow, may cause more problems by starting it. all the oil has drained off the parts, they will be some what cleaner to work with. just my 2 cents worth.

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mark

03-20-2003 09:45:16




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 Re: Re: Want to fire up my John Deere 70 diesel - been sitting for 4 yr in reply to cole in mo., 03-20-2003 00:27:32  
I too am in a similar situation and want to get a diesel running...how do you drain the condensate from the crankcase? Just drain the oil? If it hasnt run in a while do you recommend putting some oil in the cylinders throught the injectors?
Thanks, MArk



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Tugboat

03-21-2003 03:11:50




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 Re: Re: Re: Want to fire up my John Deere 70 diesel - been sitting for 4 yr in reply to mark, 03-20-2003 09:45:16  
Mark; Oil floats on water. Loosen the drain plug and the water will drain out before the oil will. When you see oil, close the drain plug.
Naturally, the engine should have sat undisturbed for a few days before you do this to be sure of good separation.
Tugboat



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