1968 coronet 440..rear main seal leak?

Thread Tools
 
Search this Thread
 
Old Jun 20, 2016 | 09:35 AM
  #1  
68coronet's Avatar
Thread Starter
New Member
 
Joined: Jun 2016
Posts: 3
Likes: 0
Question 1968 coronet 440..rear main seal leak?

I just bought this car over the weekend and I notice theres an oil leak from in between the transmission and engine, so Im guessing rear main seal.

I was told by the prev owner that it was changed when he had the motor built.

when the motor is at operating temperature it leaks/drips around 1 drop per second.



Is it a straight forward job to replace this? pull tranny off and thats it? any heads up, suggestions would be highly appreciated.


thank you in advance.
Reply
Old Jun 20, 2016 | 10:16 AM
  #2  
Iowan's Avatar
Super Moderator
 
Joined: Mar 2015
Posts: 5,466
Likes: 548
Are you sure that its not the oil sender that's leaking. It's behind the intake manifold to the left.
Reply
Old Jun 20, 2016 | 10:20 AM
  #3  
Iowan's Avatar
Super Moderator
 
Joined: Mar 2015
Posts: 5,466
Likes: 548
As far as the rear main, you pull the pan for replacement.
It can be a pain in the ###!
Reply
Old Jun 20, 2016 | 01:25 PM
  #4  
RacerHog's Avatar
Mopar Lover
 
Joined: Jun 2013
Posts: 11,070
Likes: 952
From: Monrovia SO-CAL (USA)
Yep... Pan comes off... Only way to get to the seal.. All depending on how your set up.. But some times pulling the Motor can be best...


Reply
Old Jun 20, 2016 | 02:01 PM
  #5  
68coronet's Avatar
Thread Starter
New Member
 
Joined: Jun 2016
Posts: 3
Likes: 0
I'll get under it hopefully tomorrow and take a good look. I have done seal jobs on other motors (ls2, 2jz etc) but this time very busy with work so ill see if a shop is able to do it!


another question i have is, my oil pan sits pretty low..its a moroso and hangs 4 or 5" than the cross member. Is there one in the market thats good/short? Ill be lowering the car in the near future.


Thanks
Reply
Old Jun 20, 2016 | 07:45 PM
  #6  
RacerHog's Avatar
Mopar Lover
 
Joined: Jun 2013
Posts: 11,070
Likes: 952
From: Monrovia SO-CAL (USA)
Check into putting the stock sump pan and pick up back on...... Unless there is a reason that it would not work?
Reply
Old Jun 21, 2016 | 06:02 AM
  #7  
Iowan's Avatar
Super Moderator
 
Joined: Mar 2015
Posts: 5,466
Likes: 548
You can adjust the pan depth by breaking a ring and pinion with the front wheels about two feat in the air, it has worked for me.
Reply
Old Jun 21, 2016 | 09:18 AM
  #8  
RacerHog's Avatar
Mopar Lover
 
Joined: Jun 2013
Posts: 11,070
Likes: 952
From: Monrovia SO-CAL (USA)
Originally Posted by Iowan
You can adjust the pan depth by breaking a ring and pinion with the front wheels about two feat in the air, it has worked for me.

Sounds like "Clearancing" too me....
Reply
Old Jun 21, 2016 | 09:29 AM
  #9  
Iowan's Avatar
Super Moderator
 
Joined: Mar 2015
Posts: 5,466
Likes: 548
That's with 2" spacers on the bump stops.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
usedknobby
Engines, Exhaust and Fuel systems
2
May 19, 2015 09:12 PM
usedknobby
Engines, Exhaust and Fuel systems
3
Jun 2, 2014 01:38 PM
fastdakota84
General Technical Questions
11
Jul 26, 2010 02:46 PM
DandyD
General Technical Questions
2
Apr 19, 2010 02:48 PM
SPICOLIE203
General Technical Questions
2
Aug 28, 2009 07:23 AM




All times are GMT -7. The time now is 07:37 PM.