is this normal while doing a compression test?
Thread Starter
Joined: Apr 2003
Posts: 301
Likes: 0
is this normal while doing a compression test?
i noticed that when i went to check my compression gauge, i can see the pressure slowly leaving the cylinder. i have good numbers,195-200 across the board for a 9:5.1 cr motor but i was just wondering if this was normal.
Member
Joined: Aug 2002
Posts: 2,384
Likes: 0
From: SoCal, ca
Re: is this normal while doing a compression test? (crx1856)
no it shouldnt move until you hit the release. you either have a bunk guage or its not tight enough in the sparkplug hole, check the o-ring on it.
Joined: Jul 2002
Posts: 286
Likes: 0
From: Boulder, CO, 89123
Re: is this normal while doing a compression test? (boosted_dc2)
The gauge itself is supposed to retain the pressure. That is why you dont just crank once and have an instant pressure reading on the gauge. It is supposed to hold the pressure until you release it via the pressure release button on the gauge. If it was due to the cylinders losing pressure, then you would have to crank, hurry and look at the gauge before it dropped too much..
HTH
HTH
Thread
Thread Starter
Forum
Replies
Last Post
