Quick Compression Check Question - Page 2 - JeepForum.com
LinkBack Thread Tools
post #16 of 17 Old 10-14-2009, 08:52 AM
Registered User
Join Date: Nov 2007
Posts: 6,336
Originally Posted by sterfry2004 View Post
Yeah, I figured I must have done something wrong. I'll clear it and try it again.

If one cylinder is running on 90, is that bad for the engine? If the repair will need to be done eventually, I might as well do it now, but if it's not a huge deal, I'm not opposed to just leaving it.
If you can afford it, do it. An engine needs 60psi minimum to run. It will barely lope along at that. You'll run a lot smoother with more power if you repair the issue. I was saying more or less that you could 'get by' if you needed to.

Originally Posted by Motorcharge View Post
So do you actually hear your thoughts in your head or is it just sort of a dull roar before you smash your face into your keyboard and just submit whatever dumb **** ended up on the page?
justanotherjpr is offline  
Sponsored Links
post #17 of 17 Old 10-14-2009, 09:01 AM
Registered User
1991 XJ Cherokee 
Join Date: Oct 2009
Location: San Marcos CA
Posts: 487
Well,.. the main question in my mind is "Why is it at 90?" If it's low because your rings are worn there,.. no big. But usually they wear uniformly. If it's low because of a head gasket that got something under it, and is bleading compression into the coolant jacket that is a big problem and it can't run like that.

Wiskey is offline  

Quick Reply

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Quick check before buying ArrizX XJ Cherokee Technical Forum 1 06-14-2009 06:02 AM
Low compression question Jeepar111 XJ Cherokee Technical Forum 0 04-09-2009 11:34 AM
Compression Check reading? GLCL XJ Cherokee Technical Forum 3 03-20-2008 10:38 PM
What type of guage do i get to check my compression? RamboPants XJ Cherokee Technical Forum 11 03-07-2007 04:01 PM
cylinder compression technical question. jaybyrd XJ Cherokee Technical Forum 3 08-13-2002 09:52 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome