Hi guys,
Just going to do a leak down test on my 09 Cobalt SS.
What is the easiest way to turn the engine over to get it to TDC for each cylinder test ? ....and what size is the crank bolt ??
Doesn't seem to be much room for anything.
Thanks,
Jeff

 

Got the leak down test done and compression test. Here are the numbers:
1. 6% 155 PSI
2. 3% 160 PSI
3. 5% 160 PSI
4. 3% 155 PSI

Not bad for 125,000 miles.