Engine Leak - JeepForum.com

 
LinkBack Thread Tools
post #1 of 2 Old 10-07-2003, 08:28 AM Thread Starter
slaterny
Registered User
 
Join Date: Sep 2003
Location: new york, new york
Posts: 58
Engine Leak

I just switched to synthetic oil a few months ago, and when I went to get my state inspection, the mechanic said that he saw a rear main leak...wanted to charge me $250 to fix...should I get this fixed?...will the leak stop eventually? I responded to this thread in the "General" forum, but thought I might get better/more responses here...below is the quote from another poster about this being related to the syth oil switch...




Quote:
Originally Posted by osburn
Yeah, by all means. What are ya waiting for?

Expect a rear main leak afterwards. It'll be clearing out the crud buildup and leaks are common. But a small leak is better than the crud.



1996 GRAND CHEROKEE LAREDO I6 BONE STOCK (SO FAR!)
1997 FORD EXPEDITION EB
slaterny is offline  
Sponsored Links
Advertisement
 
post #2 of 2 Old 10-07-2003, 01:17 PM
Harald
Registered User
 
Join Date: Aug 2003
Posts: 133
Quote:
Originally Posted by slaterny
I just switched to synthetic oil a few months ago, and when I went to get my state inspection, the mechanic said that he saw a rear main leak...wanted to charge me $250 to fix...should I get this fixed?...will the leak stop eventually? I responded to this thread in the "General" forum, but thought I might get better/more responses here...below is the quote from another poster about this being related to the syth oil switch...

Be no longer confused. Do not know your engine too well, but later models than 1990 in general use a one piece oil seal. To replace; the gear box, flywheel/driveplate will have to come off to get access to the seal. Anticipate 2 days work all together. This if you are certain it is the oil seal and not the gasket. Or leak from the tranny. I would say $250 not a bad price. Get it fixed.

Switching from "normal" to synthetic oil. After any engine have been running for some time, lube oil will carbonize on surfaces and give a "perfect" tolerance (fit). Switching to synthetic will clean the engine. In other words you will loose the perfect fit, and you will have leaks. These leaks may disappear after a while as the new oil starts the same carbonizing process. But in your case, I would not count on it. Just because oil does not easily carbonize at either end of the crankshaft (if at all). We, that open up engines from time to time, can easily see if an engine has been running on "normal" or synthetic oil. It is quite a difference. My GC has been running 110K since day one on synthetic, I will not take the chance on switching to "normal" oil.

Happy with this response?
Harald 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
04 GC Laredo 6 cyl oil leak - rear of engine georged ZJ Grand Cherokee Forum 3 05-22-2008 08:03 AM
96 ZJ with a leak. Not an engine leak, an inside leak! gixxerjaker ZJ Grand Cherokee Forum 1 03-04-2008 04:58 PM
4.0 Engine Oil Leak dell2028 ZJ Grand Cherokee Forum 1 04-22-2006 06:03 PM
engine light - Evaporative Emission Control System Leak Detected (very small leak) sanboy ZJ Grand Cherokee Forum 3 03-14-2006 09:42 AM
Coolant leak and engine not starting natedawg WJ Grand Cherokee Forum 7 03-11-2004 02:38 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