Top End Rebuild-run into piston ring problems! - JeepForum.com

 
LinkBack Thread Tools
post #1 of 3 Old 06-21-2010, 06:12 PM Thread Starter
grimjeeperyj14
Registered User
1990 YJ Wrangler 
 
Join Date: Sep 2009
Location: Northampton, PA
Posts: 229
Top End Rebuild-run into piston ring problems!

Im am rebuilding a 1990 4.2 and need advice on what to do. I honed the carbon and such out of the cylinders and plan on putting standard size rings back in. My problem is all the cylinders measure the correct bore diameter(maybe .001 over) but the #1 cylinder measures .003 over. due to a broken ring ,can I still use the standard ring or will this screw it up? I really dont want to have it bored over at this time, can I make it work?

-I plan on using a rebuilt 4.0 head on the 4.2 block. I have read it increases compression if that matters.


Driving my Jeep is uncomfortable, loud and drafty.... and I love every minute of it
grimjeeperyj14 is offline  
Sponsored Links
Advertisement
 
post #2 of 3 Old 06-22-2010, 10:35 AM Thread Starter
grimjeeperyj14
Registered User
1990 YJ Wrangler 
 
Join Date: Sep 2009
Location: Northampton, PA
Posts: 229
Any suggestions, Im sure someone has fixed something like this before?

Driving my Jeep is uncomfortable, loud and drafty.... and I love every minute of it
grimjeeperyj14 is offline  
post #3 of 3 Old 06-22-2010, 10:55 AM
pasinbuy
Registered User
1994 YJ Wrangler 
 
Join Date: Feb 2007
Location: florida
Posts: 3,902
I do not think that .003 will make a differance. Take a piece of regular notebook paper and measure it. Notebook paper is .003 inches thick.

.030 is a differant matter.
pasinbuy is offline  
Reply

Quick Reply
Message:
Options

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

Password:


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



Email Address:
OR

Log-in









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
Why can't I do a piston & ring replacement with the engine still attached? rain-gler YJ Wrangler Technical Forum 17 04-02-2009 07:04 PM
Having some Auto trans problems tf999 rebuild jeepinjc YJ Wrangler Technical Forum 10 01-20-2009 01:30 PM
No!!! need LoD help. D ring problems. :( bman9089 TJ Wrangler Technical Forum 15 12-16-2008 09:24 PM
231 problems and rebuild Q's TyJeep TJ Wrangler Technical Forum 6 06-19-2008 01:59 PM
Snap Ring/Retaining Ring Pliers SYE Install mking7 TJ Wrangler Technical Forum 7 09-29-2004 10:55 AM

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