Offshoreonly.com - leak down test on 500hp

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rssteiny

04-17-2008 06:44 AM

leak down test on 500hp

my 500 hps have 400 hrs on them i did valve springs at 260 hrs, i want to do a leak down test on them, what is a good and bad # im looking for.

thanks

Young Performance

04-17-2008 08:23 AM

Anything under 10% is great. My engines with Total Seal gapless rings will leak at 2-4% cold.
I would think you would see in the 10-12% area.
Eddie

Griff

04-17-2008 12:18 PM

Consistent numbers below 15% is what you are looking for.

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