Comanche with an oil leak. Do I need a new block? - JeepForum.com

 
LinkBack Thread Tools
post #1 of 7 Old 12-04-2011, 08:04 AM Thread Starter
nickhuts
Registered User
1990 MJ Comanche 
 
Join Date: Sep 2008
Location: Monroe, Ohio 45044
Posts: 111
Comanche with an oil leak. Do I need a new block?

So I bought this comanche with a lil oil leak about a month ago.
After getting it up on the car lift I determine its a rear main seal.
No big deal. I swap it out and then relise that there is a chunk of the block missing. Its a little triangle that had been chipped off (probably the previous owner attempting to get the seal out with a hammer and screw driver...but missed!) It is a thin piece of block between the rear main seal and the end of the crank...ugh! Do I need a new block? I "glued" the piece back in there with RTV sealent like it was before and now Its leaking about a 7 in oil circle on the floor in about 3-5 minutes (same if not worse then before) .

Maybe take it back apart and use some JB weld. Its easy to get to with out the front drive train in.

any ideas?

nickhuts is offline  
Sponsored Links
Advertisement
 
post #2 of 7 Old 12-04-2011, 11:17 AM
automan2164
Registered User
1986 MJ Comanche 
 
Join Date: Dec 2009
Location: Harvard, IL
Posts: 201
Any pics of it?

Rob

'86 MJ 2.1L 4x4 MT LWB - Factory Diesel
'87 MJ 4.0L 4x2 AT LWB - Metric Ton
'97 XJ 4.0L 4x4 AT Country
automan2164 is offline  
post #3 of 7 Old 12-04-2011, 11:49 AM Thread Starter
nickhuts
Registered User
1990 MJ Comanche 
 
Join Date: Sep 2008
Location: Monroe, Ohio 45044
Posts: 111
Ok this is not mine but I found this on google. it should give ya an idea.
Attached Thumbnails
Jeepin rear seal.jpg  
nickhuts is offline  
post #4 of 7 Old 12-04-2011, 01:55 PM Thread Starter
nickhuts
Registered User
1990 MJ Comanche 
 
Join Date: Sep 2008
Location: Monroe, Ohio 45044
Posts: 111
just got some marine JB weld and stuck it back in there. I will put the oil pan back on tomorrow night and fire it up tuesday....fingers crossed....
nickhuts is offline  
post #5 of 7 Old 12-07-2011, 01:58 PM Thread Starter
nickhuts
Registered User
1990 MJ Comanche 
 
Join Date: Sep 2008
Location: Monroe, Ohio 45044
Posts: 111
Let the motor warm up a lil bit...no leak

Held the rpms at 2000...seems to be golden

JB weld saved my block. Time will tell
nickhuts is offline  
post #6 of 7 Old 11-26-2012, 05:25 PM Thread Starter
nickhuts
Registered User
1990 MJ Comanche 
 
Join Date: Sep 2008
Location: Monroe, Ohio 45044
Posts: 111
ok update...the JB weld is STILL holding..about one year later...freaking awesome stuff!!
nickhuts is offline  
post #7 of 7 Old 11-26-2012, 10:16 PM
ftpiercecracker
Registered User
1990 MJ Comanche 
 
Join Date: Jul 2011
Location: woodbury
Posts: 348
good fur you!
ftpiercecracker 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
2000 4.0 block in 89 comanche? cpradio XJ Cherokee Technical Forum 5 02-28-2011 09:38 PM
86 comanche front axle leak fernjohn MJ Comanche Technical Forum 2 11-16-2010 07:56 PM
another comanche is hitting the FS: block jebnmikki MJ Comanche Technical Forum 0 08-27-2010 09:04 PM
84 Comanche Clutch Slave cyl leak guruofguns MJ Comanche Technical Forum 5 11-12-2009 11:20 AM
new fuse block? am i a block head? 2nd alt? futurefd XJ Cherokee Technical Forum 3 02-12-2007 11:37 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