Couple questions

[BuddySpeed3]

Originally Posted by slowspeed6 I wanted to do a compression test before spending any more money on the car. I rented a tester from autozone that looked like it had never been used before. All cylinders read 180 but each one took at least 15 cranks before the needle stopped moving. Each cylinder seemed to take about the same amount of time to reach 180. I've read it should take 3-4 cranks and I'm wondering if this is normal? Also has any one heat wrapped the stock exhaust manifold? Would it be worth it to do? Thanks in advance for any advice!

The engine should be hot when carrying out a compression or leak down test to ensure the engines internal components have expanded to size and are sealing up. Other wise readings may be skewed. It's also a good idea to test each cylinder quickly before the engine cools down.

It took mine about 8 to 10 cranks to hit 180 psi, but every tester is different. As long as you are hitting good peak cylinder pressure in every cylinder it should be fine. A leak down test should be the next thing to do as it will tell you a lot more