What is the best way to tell if you have bent valves without pullin the heads off, see heres the deal i got the intake off and we have done compression checks and 4 come out as 85 psi and the other 2 are a lil over 100, its a 2.8 v6 so far we have tapped the tops of the springs and all of them flex but 2 of them dont move please guys i need some answers

thanks

 

Put air in each cylinder. If they are bent they will not close and seal. Listen to the intake manifold and tailpipe. Air here will mean a bent valve in the cyl getting air.

 

Will this work even if the intake is off?

 

Yes. It will work with intake off. I forgot to mention in the last post, when working on a certain clyinder, loosen both rocker nuts and remove rocker arms. This will ensure both valves in that cylinder are closed.

 

yeah itll still work but you have to make sure both valves are closed on the cylinder your checkin