Engine compression

General Engine Discussion

Moderator: John_Heard

Post Reply
Message
Author
SuperPro
Posts: 3
Joined: Sun Jan 04, 2015 12:13 pm
Location: Maryland
Contact:

Engine compression

#1 Post by SuperPro » Wed Oct 19, 2016 6:13 am

Hi,

I took a compression test of my engine (cold) it ranged from 185 - 210.

Does this seemed ok or is it showing a potential problem.

Thanks

bracketchev1221
Posts: 155
Joined: Fri Oct 11, 2013 7:59 pm
Location: Mountville PA

Re: Engine compression

#2 Post by bracketchev1221 » Wed Oct 19, 2016 7:12 am

It is a bit more of a spread then I would like, but it was cold. you could spray a little oil in the lower cylinders and see if they pick up. I'm going to go out on a limb and say there probably isn't anything wrong with it.

User avatar
John_Heard
Site Admin
Posts: 5683
Joined: Thu May 12, 2005 11:20 am
Location: Resume Speed, Kansas
Contact:

Re: Engine compression

#3 Post by John_Heard » Wed Oct 19, 2016 11:01 am

That is a bit more of a spread than I'd expect to see. Go run the valves and make sure you've got them all adjusted correctly, charge battery and run it again. See if you don't see an improvement.

There are things that sometimes will make a difference, spot of carbon on a valve, stuff like that, but that range is more than I'd want to see really.

SuperPro
Posts: 3
Joined: Sun Jan 04, 2015 12:13 pm
Location: Maryland
Contact:

Re: Engine compression

#4 Post by SuperPro » Thu Oct 20, 2016 3:59 pm

Thanks for the input I too thought the spread was a little to much.
I'm going to check the valve lash and redo the test.

Post Reply

Who is online

Users browsing this forum: No registered users and 3 guests