Offshoreonly.com - Leakdown test on a cold motor

Offshoreonly.com (https://www.offshoreonly.com/forums/)

- General Q & A (https://www.offshoreonly.com/forums/general-q-20/)

- - Leakdown test on a cold motor (https://www.offshoreonly.com/forums/general-q/141908-leakdown-test-cold-motor.html)

onesickpantera

10-03-2006 11:49 AM

Leakdown test on a cold motor

Can I do a leakdown test on a cold motor? The motor is out of the boat and I am unable to run it. Do you usually see higher numbers on a cold motor?

Ted G

10-03-2006 12:36 PM

Re: Leakdown test on a cold motor

Yes, leakdown past the rings will be higher, valves about the same. This would still be an indicator if one or two cylinders are markedly different.

Wobble

10-03-2006 06:50 PM

Re: Leakdown test on a cold motor

most of them are done cold anyway, no one checks a healthy motor. :drink:

mrhorsepower1

10-05-2006 11:36 AM

Re: Leakdown test on a cold motor

A cold leak down test on an engine that has been running is fine. Percentage of leakage will be higher. If the engine has set some time it is a good idea to warm the engine up to free up an crystaliztion on valve seats and such.

dagah2x

10-09-2006 03:56 PM

Re: Leakdown test on a cold motor

What would be an acceptable amount of leakdown on a cold 502??

mrhorsepower1

10-09-2006 06:10 PM

Re: Leakdown test on a cold motor

Quote:

Originally Posted by dagah2x

What would be an acceptable amount of leakdown on a cold 502??

How many hours are on it?

dagah2x

10-09-2006 08:58 PM

Re: Leakdown test on a cold motor

Quote:

Originally Posted by mrhorsepower1

How many hours are on it?

About 100. I guess a better question would be how much difference would you see from a cold motor to a warm motor?

All times are GMT -5. The time now is 09:46 AM.