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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

rear main seal

  • Thread starter Thread starter blkstangman88
  • Start date Start date Jun 1, 2004

blkstangman88

New Member
Apr 6, 2004
646
0
0
Jun 1, 2004
#1
  • Jun 1, 2004
  • #1
is there a certain way to install the rear main seal? i installed one, make it flush with the steel like the shops told me and a week after installing it i have an oil leak again!!!! i cleans the whole and rubbed oil on the seal b4 insertion aswell, am i missing somthing?
 

BlueDevil95

New Member
Apr 20, 2004
184
0
0
Elkton, MD.
Jun 1, 2004
#2
  • Jun 1, 2004
  • #2
you might just have one of those stangs that the rear main will always leak. i've replaced mine 3 times and finally just said the hell with it. it's a very common problem with the 5.0.
 

blkstangman88

New Member
Apr 6, 2004
646
0
0
Jun 1, 2004
#3
  • Jun 1, 2004
  • #3
is there a sealant i can shove in there? im asking this cuz its now leaking faster then it was b4 i replaced it.
 

BlueDevil95

New Member
Apr 20, 2004
184
0
0
Elkton, MD.
Jun 1, 2004
#4
  • Jun 1, 2004
  • #4
no, sealant won't work there because of the movement of the input shaft.
i've always installed mine using a flat body hammer gently tapping it in all the way around. mine have always leaked on both of my mustangs, i've just kind of accepted it. mine's not too bad though, i usually only have a drop or two on the bottom of the bellhousing.
 

93 teal terror

Founding Member
Jul 13, 2001
971
62
69
Durham N.C.
Jun 1, 2004
#5
  • Jun 1, 2004
  • #5
you probably need a crank sleeve.....your local parts store should have one
 

The Shape

Founding Member
Jan 11, 2002
2,224
8
49
East ARKANSAS Delta
Jun 1, 2004
#6
  • Jun 1, 2004
  • #6
Mine leaks as well. As BlueDevil95 said it is a very common problem with the 5.0.
 

bmo37

Founding Member
Jun 27, 2001
2,368
2
46
New Jersey
Jun 1, 2004
#7
  • Jun 1, 2004
  • #7
i just notcied my old engine had a small leak (302) and just installed a new rear main seal on the 347 but haven't tested it yet. Your susposedly susposed to use a special insterion tool so the seal is spaced the proper distance from the block otherwise the seal will wear and leak thats the general problem, no one uses the right tool and it leaks, but I somewhat do the same thing cause im not forking over 120 bucks for a ford rear main seal insterion tool just to install a seal one time.
 
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