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help with rear main seal

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Old Jan 31, 2004 | 05:49 PM
  #1  
llvll4l2c91350's Avatar
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help with rear main seal

i was reading some posts and they said i have to take out the seal housing in order to replace the seal. but i was looking at it and it also looks like i have to drop the pan. do i have to do that? can i replace it without taking the housing off? my oil pan looks pretty tight on there and i dont really wanna mess with it. thanks.
Attached Thumbnails help with rear main seal-dscn0436-small-.jpg  

Last edited by llvll4l2c91350; Feb 1, 2004 at 06:43 AM.
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Old Jan 31, 2004 | 08:10 PM
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thirdgen88's Avatar
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From: Bonner Springs, KS
Car: 1995 Corvette
Engine: LT1
Transmission: 6 spd Manual
Axle/Gears: Dana 44, 3:45:1
Those seals are enough of a pain with the seal housing off.. Theoretically you could get it out without taking the housing off, but if yours is anything like the ones I've had to do, I had to mutilate the seal pretty bad just to get it out with the seal housing off the engine.. Maybe someone might have an efficient in-car technique?? I'd just be afraid of scoring the crank trying to remove the seal..
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Old Feb 1, 2004 | 12:21 AM
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llvll4l2c91350's Avatar
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Originally posted by thirdgen88
Maybe someone might have an efficient in-car technique??
anyone??????

i would like to replace this seal but would like to know if it can be done safely with the housing still bolted up. i know if i dont change it it'll start leaking soon after. thats just my damn luck. i thought this was gonna be a simple pry off/hammer in deal!
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Old Feb 1, 2004 | 06:15 AM
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ede
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if you have to do it with the housing still installed on the engine use a seal puller and remove the seal and install the seal just like you would with the houseing out, other than needing a means to remove the seal it wouldn't be any differant to install. why are you so set on not removing the seal houseing?
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Old Feb 1, 2004 | 06:34 AM
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i dont have a problem taking the housing out it's the pan that im afraid to move. i looked at the engine i have on the stand and it does look like the pan holds part of the seal housing. which would explain why it's not moving after i took out all the bolts and tried to pry it off. the pan is set on there tight with gasket and silicone and i'm afraid if i mess with it it's just gonna start leaking. hasn't leaked in like 2 years since i've owned the car.

EDIT: i posted a pic of the housing from my other motor and you can see there's a recessed part that the pan goes into sorta like on the timing cover.

Last edited by llvll4l2c91350; Feb 1, 2004 at 06:45 AM.
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Old Feb 1, 2004 | 06:57 AM
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ede
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you don't have to remove the pan to change the seal, even if you did the pan isn't any big deal to R&R.
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Old Feb 1, 2004 | 07:18 AM
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From: Detroit, Michigan
Car: 04 Xtreme Blazer
Engine: 4.3L V6
Transmission: 4L60E
to replace a 1 piece seal on the motor, I drill a smal hole (no larger than1/8) in the steel shell of the seal, might need more than 1 hole, then i thread a sheet metal screw into the hole, then take a couple of pry bars, on opposite sides of the screw, under the screw head, and apply pressure until the seal comes out

if you have a slide hammer that uses a sheet metal screw, that will work too
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Old Feb 1, 2004 | 06:06 PM
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From: pacific NW
Car: 1991 Z28 1LE A.K.A The blue rocket
Engine: Blown 383
Transmission: Full manual 700R4
When I did mine I just loosened all the bolts on the pan, that gave me enough room to work.
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Old Feb 1, 2004 | 06:14 PM
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i just pried it off with a screwdriver without taking the housing off. came out rather easily. i was just afraid i was gonna hit the crank or something. i did it after i tried it on the motor that's on the stand first.
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