ptv checking questions

[dmc919]

what kind of material do you use for the top of the piston and where do you get it from? Also what should the clearances be?

 

[5spd GT]

Resin solder is one of the better materials to use, but many have had success with some modeling clay (if you are careful). I had no issues. Just stick a 1/4" thick pad of the material you choose around the valve reliefs.

Typical suggestions are .080" on the intake and .100" on the exhaust. Some other valvetrain companies suggest to be even safer, at + .020-.025" to the previous suggestion.

Remember, peak lift has nothing to do with piston to valve clearance.

Good Luck!

 

[dmc919]

So where can I get Resin Solder and Modeling Clay. Parts Store? Wal-mart?

 

[5spd GT]

Modeling Clay can be bought at just about any retail store. Cheap and easy.

 

[83T-top]

I just went to Wal-Mart and got some modeling clay.