What should the compression numbers be for a stock, rebuilt Y7? I'm going to test one here shortly and need to know the numbers for it.

Every time I search, I find threads about people asking if their numbers are good but nobody says what they SHOULD be!

 

What they should be on a new car vs what you currently have with XXXXX miles is different. What people are looking for are percentage differences between each cylinder... too big and it indicates a "problem" cylinder... so yes post your numbers. Take all the plugs out and do the compression check at WOT (Wide Open Throttle) while cranking...

 

my 99 DX with 359,xxxKM's pushed 180,180.182,185. you're looking for drops between cyl's more then how high/low numbers. Low overall just means the engine's old and tired.