Checking for bent valves

[JayB98GST]

ok, my balance shaft belt broke and after replacing it and making sure my timing marks were all lined up, the car still wouldnt start. So I did a compression test and two cylinders had no compression at all and the other two had about 60psi (the motor was cold when tested). I'm pretty sure now that I have bent valves, but how would I check to be sure? Would I have to remove the whole head or could I just take off the valve cover? Any help would be great. thanks.

 

[quick_shifter]

if you don't want to take the head off try taking the cap full of oil and pouring it into where the spark plugs go then do another compression test if you get compression then it's your rings if you don't it's your valves. but if your getting nothing in 2 cyliders then that sounds like a problem. good luck

 

[Defiant]

Originally posted by JayB98GST
two cylinders had no compression at all and the other two had about 60psi (the motor was cold when tested). I'm pretty sure now that I have bent valves

You do.

 

[scuRRed whiTey]

take a connecter screw it into the spark plug hole and start running air through the cylinders...if u here hissing through ur tail pipe or even out of ur head...you have bent valves...

if ther enot bent the air wont flow and it will build pressure

 

[EclipseMan758]

i just went throught this take the valve cover off and try and wiggle the lifters.. the ones that are loose are the ones that are bent. if you busted a counter balance belt its 9 times out of 10 its you intake valves if you busted your timing its probably both. have fun

illeagle