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post #1 of 38 Old 02-10-2009, 11:27 AM Thread Starter
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Compression question.

For those of you who HAVE tested the compression, I have a question...

Have you seen valve\valve seat damage and still had decent compression (above 390psi)???

Engine was tested at ambient outside temp.
Very little to no oil leaked into the cylinder when glow plug was removed.
Pressures held for 2-3 min before gauge was removed to move the the next cylinder.

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Last edited by Dirk; 02-10-2009 at 11:57 AM.
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post #2 of 38 Old 02-10-2009, 11:42 AM
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Quote:
Originally Posted by Dirk View Post
For those of you who HAVE tested the compression, I have a question...

Have you seen valve\valve seat and still had decent compression (above 390psi)???

Engine was tested at ambient outside temp.
Very little to no oil leaked into the cylinder when glow plug was removed.
Pressures held for 2-3 min before gauge was removed to move the the next cylinder.
Dirk, forgive me for hijacking your thread, but do you have a p/n for the adaptor to run a compression test? If you tell me, I can answer your question!

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post #3 of 38 Old 02-10-2009, 11:53 AM Thread Starter
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I don't know. Call Diesel Innovations.

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post #4 of 38 Old 02-10-2009, 11:53 AM
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I run the compression test and usually give it 3-5 cranks to get the compression and then move on. I don't let it sit there because the gauge I use takes the maximum value achieved and holds it there.

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post #5 of 38 Old 02-10-2009, 11:58 AM Thread Starter
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right. So does mine. I'm just questioning the state of the valves\seats due to issues I'm having.

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post #6 of 38 Old 02-10-2009, 12:02 PM
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Quote:
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right. So does mine. I'm just questioning the state of the valves\seats due to issues I'm having.
ok gotcha .

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post #7 of 38 Old 02-10-2009, 01:37 PM Thread Starter
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bump to the top.

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post #8 of 38 Old 02-10-2009, 05:01 PM Thread Starter
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another bump

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post #9 of 38 Old 02-10-2009, 05:22 PM
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I havent.
post #10 of 38 Old 02-10-2009, 05:22 PM
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Heres a bump for ya..cant answer that one.


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