Rear main seal

Old Jun 21, 2014 | 05:07 PM
  #1  
paul879's Avatar
Thread Starter
69-72 olds owner
 
Joined: Feb 2009
Posts: 80
From: New England
Rear main seal

I need to change my rear main oil seal is there a way to change the rope seal without dropping the crank shaft down,
Old Jun 21, 2014 | 05:12 PM
  #2  
MDchanic's Avatar
Connoisseur d'Junque
 
Joined: Sep 2010
Posts: 21,183
From: The Hudson Valley
It's gotta come down a little, but it doesn't have to come out.

By the time you get the motor jacked up, transmission disconnected, oil pan off, etc., all while lying on your back, you'll see that it's nearly as easy to pull the motor and do it that way.

They make a special tool for pulling out the rope seals, but I've had success just grabbing at it with needlenose pliers until it slides out.

- Eric
Old Jun 22, 2014 | 07:40 PM
  #3  
mrolds88's Avatar
Registered User
 
Joined: Aug 2004
Posts: 137
From: WV
Pull the rear main, grab the end (passenger side) of the seal and rotate the crank by hand in a normal rotation. Should help to "push" it out.
Old Jun 23, 2014 | 06:37 AM
  #4  
Smitty275's Avatar
Engine Builder
 
Joined: Jan 2010
Posts: 552
From: Louisville, ohio
Don't replace it per say. Add more packing material. Usually if one leaks it is because it wasn't packed tight enought to begin with.

Or pull it out and rotate a neoprene seal in. That would be easiest and most trustworthy.

Either way you do not need to remove any more than the rear cap. Just be patient and work smartly.
Old Jun 25, 2014 | 06:27 PM
  #5  
paul879's Avatar
Thread Starter
69-72 olds owner
 
Joined: Feb 2009
Posts: 80
From: New England
Thanks for the tips guys been a long time since if done one ,ill try the turn the crank deal . Every one says the rope seal is the best never herd of the neoprene seal but thanks
Old Jun 25, 2014 | 07:02 PM
  #6  
MDchanic's Avatar
Connoisseur d'Junque
 
Joined: Sep 2010
Posts: 21,183
From: The Hudson Valley
Never heard of a neoprene seal?!?

They've been used in most engines since the 1960s, and have been used in all engines for at least the past 20-30 years.


Where do these people you've talked to live? North Korea?

- Eric
Old Jun 25, 2014 | 07:33 PM
  #7  
dc2x4drvr's Avatar
Registered User
 
Joined: Jul 2009
Posts: 3,202
From: St Augustine
Save yourself a lot of heartache..pull the motor and use the F**D 460 seal..
Old Jun 25, 2014 | 08:50 PM
  #8  
costpenn's Avatar
Registered User
 
Joined: Jun 2011
Posts: 2,866
From: Carrolllton Texas
Better yet, my company Enginetech offers a 460 Ford offset seal where the lip is moved to a different part of the crank surface - helping to control weeping if the sealing journal has developed a wear groove.
Old Jun 26, 2014 | 04:47 AM
  #9  
Smitty275's Avatar
Engine Builder
 
Joined: Jan 2010
Posts: 552
From: Louisville, ohio
He doesn't "have" to pull the motor. Though I do believe it is easier than doing it in the car that way. Remove the rope and install the neoprene.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
toneypenna
Big Blocks
9
Oct 7, 2010 05:19 PM
Robert Kiedrowski
General Questions
3
Oct 19, 2009 07:07 AM
Gbobby
Small Blocks
4
Mar 15, 2009 02:55 PM
65cutty
Small Blocks
4
Sep 23, 2008 10:07 AM
gearheads78
Small Blocks
1
Apr 17, 2008 05:03 PM


Thread Tools
Search this Thread

All times are GMT -7. The time now is 11:17 AM.