Compression - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > Community Forums > WF New Member Check In

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 06-23-2012, 12:11 AM   #1
Jeeper
 
ltswoth's Avatar
 
Join Date: Mar 2011
Location: La Crescenta, CA
Posts: 21
Compression

HI All, this is my first post and need some help. I have an 89 jeep with a 4.2 engine. I have put in a Howell injection system, which was very easy I might say. Runs great, but at idle it sounds like it has a miss and cleans up nicely once you get up in RPM's. Have been told to check the compression to see if I may have a burnt valve. Question is it four cranks of the engine and + or - 10 pounds around 150 pounds in each cylinder to still be good?

ltswoth is offline   Quote
Old 06-23-2012, 02:43 AM   #2
Jeeper
 
darkproximity's Avatar
 
Join Date: Feb 2011
Location: Not Spokane, WA
Posts: 12,000
Yes that's good compression.. Have you checked your plugs for correct gap, and made sure all the wires are connected (clicked in) on the plugs and cap?

__________________
Apache chief, e ne chuk!
darkproximity is offline   Quote
Old 06-23-2012, 04:36 AM   #3
Jeeper
 
MrSig's Avatar
 
Join Date: Aug 2011
Location: Davie, Fl
Posts: 21,601
Welcome and enjoy the forum!
__________________
07 JKU to see my mods or Jeep in action go to http://www.aaof.us/jeep.htm
CEO of Black Sheep 4x4s org,
Member of CCJ, White Jeep Club Member #137.
MrSig is offline   Quote
Old 06-23-2012, 10:56 AM   #4
Thank You Veterans!

5-Year WF Supporting Member
::WF Moderator::
 
Beastmaster's Avatar
 
Join Date: Aug 2011
Location: The Old Pubelo
Posts: 27,607
Welcome to the forum!

_______
/l ,[____],
l---L -OlllllllO-
()_) ()_)--o-)_)
Beastmaster is online now   Quote
Old 06-23-2012, 05:01 PM   #5
Jeeper
 
SilverSport's Avatar
 
Join Date: May 2011
Posts: 23,971
Send a message via Yahoo to SilverSport
Welcome Aboard!
__________________
"Own a Jeep and own a piece of history."

"The Hunter is not concerned with the opinion of the Wolf."
SilverSport is offline   Quote
Old 06-23-2012, 07:41 PM   #6
Jeeper
 
blkrubi88's Avatar
 
Join Date: Nov 2009
Location: Clayton NC
Posts: 25,531
Welcome!

__________________
I can only please one person a day and today is not your day and tomorrow is not looking good either!



CHRIS
blkrubi88 is online now   Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not 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 Off
Refbacks are Off




Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 05:56 PM.


User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC