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Discussion Starter · #1 ·
My lack of mechanical knowledge shines through... and everyone's help is much appreciated...

Please correct the following statements should they prove inaccurate:

Compression and leakdown tests... they would:

1) help determine whether there is a blown or leaking head gasket
2) help determine some internal misalignment evident through largely varying results
3) potentially clarify the issue of whether the head is warped

Am I correct?

D
 

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Discussion Starter · #3 ·
That would show water/coolant in the oil, but that may not answer some of the other things...
D
 

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Donkeybike?
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Plus, oil analysis reports are most valuable when you have compiled historical data, i.e., over the past two years, every oil changed. With records like that, you can have a great picture of what's been going on in the engine.
 

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Low (dry test) comp in all cylinders usually indicates wear (rings or valves) If it improves with "wet" test, indicates rings. Ideally, even if comp is on the low side all cylinders should have readings within 10-15% of each other, yes it`s not "fresh" but there are no problem cylinders.
 
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