Mazda MX-6 Forum banner

1 - 8 of 8 Posts

·
Registered
Joined
·
181 Posts
Discussion Starter · #1 ·
Been avoiding the compression tester since I bought it a could of weeks ago. Thought it would be bad news - but not this bad.

Rear bank
115 | 182 | 195

Front
180 | 182 | 135

Looks like that ZE will be coming sooner than later
 

·
Registered
Joined
·
4,939 Posts
Number 2 and 5 the ones about to go? Is it normal for one to be soooo far away from the rest. I mean, a bad ring yer, but that is a big gap. My gap was about 20psi and I was shitting bricks (and rightly so with a dead engine now in my garage:)).
 

·
Registered
Joined
·
181 Posts
Discussion Starter · #3 ·
All I know is there should be no more than 10% diff between highest and lowest and I have about 60% difference.

I didn't quite believe the low figures and came back to those cylinders 3 times and did seperate tests-all the same result.
 

·
Registered
Joined
·
181 Posts
Discussion Starter · #5 ·
this is the old DE engine in the car when I bought it.

I HAVE put 50k on the engine since I bought it and haven't exactly driven it gently.
 

·
Registered
Joined
·
215 Posts
have u done a wet test (apply oil down the cylinder and recheck if compression comes up if so u have a ring issue if stays the same valve problem
 

·
Registered
Joined
·
181 Posts
Discussion Starter · #7 ·
How much oil do I put in each cylinder?
 
1 - 8 of 8 Posts
Top