Thread: Engine Test Run
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VFR750 VFR750 is offline
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Join Date: Mar 2004
Location: Windsor, CT
Posts: 2,119
Cold, never run, engine leak down? Only asking for a bad answer. Rings are not seated.

After running the oil has some wear, rings breaking in, hence some shiny stuff.

Isn’t break-in lube typically dark grey. That gets flushed out.

You may have a problem, but until the rings seat you will have more leak down.

Where is the leakage going? Out the exhaust? Out the intake? Into the crankcase? Or worst scenario: between the head and cylinder?

Need more data.
Old 09-24-2020, 05:53 PM
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