How do you check PTV clearance???
#1
How do you check PTV clearance???
How do you check piston to valve clearance on a given setup? I want to try and run a thinner head gasket (impala .029" compressed or Mr Gasket #5716 .026" compressed) but want to check clearance before hand. Also, is there any feedback on running the Mr. Gasket compared to the Impala one?
Brandon
Brandon
#3
Re: How do you check PTV clearance???
Well im no mechanic so would you mind giving some more details about how to go about doing this? Im sure i can get ahold of a dial indicator though.
Brandon
Brandon
#4
Re: How do you check PTV clearance???
What cam are you using? In stock form the LT1 is a non-interference motor. This means the valve can be at full lift and the piston at TDC and still not hit. If you are using a mild cam such as the Hot Cam or 305, you will never have problems using the thinner gaskets.
#6
Re: How do you check PTV clearance???
With all the posts I have seen of valvetrain damage after a timing chain break, I am not so sure the LT1 is a non-interference engine (I don't know if they were all stock cammed).
A quick trip to Google gave this method that does not need the head removed and only uses a feeler gauge.
You can always Google for more.
A quick trip to Google gave this method that does not need the head removed and only uses a feeler gauge.
You can always Google for more.
#8
Re: How do you check PTV clearance???
Originally Posted by Robs97Z28
The easiest way is to use modeling clay. I know it isn't the most accurate method, but it will get the job done.
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