Originally posted by firebird77clone
Grandpa told me he did a lot of 'experiementing' with plastigauge, and in his opinion it wasn't worth a $hit. He said its accuracy varied with temperature, etc.

I seem to recall that plastiguage must be done with a dry assembly.. is that right?
i dont understand that statement at all. what was he doing with it. its was the only way to check clearances in the car and still is far as i know. nobody said it was 100% acct. it put you in the ball park. what did he use, nothing?