Home › Forum › Ask A Member › So I got it running, but not well › Re: So I got it running, but not well
April 20, 2015 at 10:44 am
#14337
quote ShoestringMariner:
The compression is between 60 & 70, but I’m uncertain if that is the true value because I had to add extra o-rings due to the length of my tester’s threaded section (too long).
That will have no undesirable effect on the final compression reading, so long as the ‘face’ of your compression tester fitting is sitting at about the same depth as the spark plug normally would. And since you had to +add+ o-rings (to prevent piston collision?) you should be perfectly safe.