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Compression in D17 Ser IV Gas

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09-16-2002 19:12:55

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What should I be getting for compression in the cylinders on this beast? It smokes some and leaks oil at the manifold, so I'm hoping valves/head, but would like to be more intelligent on the compression I should be looking for.



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09-17-2002 18:25:35

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 Re: Compression in D17 Ser IV Gas in reply to Steve, 09-16-2002 19:12:55  
should be well ofver 100 psi, but more important, they sould be within 10 psi of each other. Valves are always the easly guess, but if the are worn, probalby rings are not far behind. When you remove the head, look at the ridge on top of the liner. Probably shows a good size ridge after 30 years. If you are doing the head, i would count on pulling the pistons and at least putting in rings. If its a work tractor and will get daily usage, i would go further.

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09-16-2002 20:09:59

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 Re: Compression in D17 Ser IV Gas in reply to Steve, 09-16-2002 19:12:55  
Buy the Operator and Service manual.

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09-21-2002 18:13:09

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 Re: Re: Compression in D17 Ser IV Gas in reply to JMS/MN, 09-16-2002 20:09:59  
Thanks for the thought. I have both of them and can't find anything about compression in the owners manual or the I&T manual. That's why I asked.


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