There are pro techs who believe that if you do a valve job on a car with weak rings, you'll blow the rings after the valve job because you now have better seal..ie..more pressure up above to be exerted down on the pistons.

If you did BOTH the head AND the rings, things would be different.

In the techs defense I would say that if you were to do all of that, why not just go through the whole motor?



Mike Murrell
'95 Rodeo - 3.2 liter - 2WD - Automatic
'04 Tacoma - 4 banger - Automatic