502mpi please help quick question???
#1
When doing a compression test what should be the reading???? With normal wear and tear thanks guys. Oh and the motor in stock 1998 model. What should it be on each cylinder???
Last edited by swan2; 06-11-2012 at 05:04 PM.
#3
Registered
Joined: Jan 2004
Posts: 4,480
Likes: 43
From: Tennessee
Put a charger on the batteries when doing the comp.test. If the batteries start to go down during the test, it will affect the numbers. Make sure it spins as good on the last hole as it did on the first hole.
The biggest thing you are looking for is equality, as Griff said. I like to see no more than 10 psi from highest to lowest.
Eddie
The biggest thing you are looking for is equality, as Griff said. I like to see no more than 10 psi from highest to lowest.
Eddie





