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#1
07-25-2017, 11:42 AM
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rear main seal question
Can the rear main seal be changed to a one piece seal with out pulling the engine? The engine is in a '69 Firebird with a 350 & manual trans.
It seems to me that it probably can't but just wondering what others have done. The transmission has to be removed to change the seals as well so we will be looking right at that rear main.
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 1969 Firebird 350 convertible, t-5, Carousel Red 2008 Solstice GXP 5speed manual, Sly 2008 Grand Prix, Ink Slate, Winter daily driver 2009 G8, Switchblade Silver, summer daily driver |
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#2
07-25-2017, 11:45 AM
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not a chance,the crank has to be removed enough to get it around it.Tom
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#3
07-25-2017, 12:13 PM
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You'LL not get the upper rope seal out without having the Crank out!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#4
07-25-2017, 12:27 PM
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I have done them in car
__________________
2008KRE Q16 Winner 2014 atco raceway doorslammer winner 86 grand am tube car 8.95 @152 455 eheads solid flat tappet cam Hoffman Racing building and racing Pontiacs for 35 years |
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#5
07-25-2017, 12:32 PM
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Richie,you have done the one PC BOP rear seal in a 69 bird?You are superman!Tom
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#6
07-25-2017, 12:36 PM
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Not much fun is it, in fact PIA barely does it, no?
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#7
07-25-2017, 01:00 PM
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Even if you could...I wouldn't. You'll probably have a worse leak than you started with.
__________________
1978 Black & Gold T/A [complete 70 Ram Air III (carb to pan) PQ and 12 bolt], fully loaded, deluxe, WS6, T-Top car - 1972 Formula 455HO Ram Air numbers matching Julep Green - 1971 T/A 455, 320 CFM Eheads, RP cam, Doug's headers, Fuel injection, TKX 5 Spd. 12 Bolt 3.73, 4 wheel disc. All A/C cars |
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#8
07-25-2017, 01:09 PM
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Nope. You'll have to pull the engine. Not a bad job, and you'll be able to clean and reseal the whole thing while you're at it. Freeze plugs, paint touch up, etc. And a great opportunity to detail out the engine bay. Even with a 2 piece rear main, pulling the engine is the only real way to do an effective job. And in the end, its cleaner and actually less of a struggle.
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Jeff 
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#9
07-25-2017, 01:12 PM
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Quote:
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#10
07-25-2017, 01:26 PM
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Quote:
Quote:
Yanking the engine drops the frustration level to about 1/10th, and triples the chances of a successful completion. |
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#11
07-25-2017, 02:06 PM
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It can and has been done "in vehicle" for years(Kent-Moore makes a tool for this purpose) but I don't recommend it unless you have no other choice.
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“It takes considerable knowledge just to realize the extent of your own ignorance.” Dr. Thomas Sowell |
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#12
07-25-2017, 02:33 PM
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The problem with installing a neoprene seal "in car" is that you cant fill the "anti-rotation holes" in the block, and oil will bypass around the seal.
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GOOD IDEAS ARE OFTEN FOUND ABANDONED IN THE DUST OF PROCRASTINATION |
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#13
07-25-2017, 02:37 PM
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I call BS on anyone saying it can be done in a firebird. You can't get the pan off. At least I couldn't. This was with the motor jacked up as hight it could with the trans still attached. By the time you disconnect all that you need to, to raise the motor your about 45 minutes from pulling it any way.
proof 
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#14
07-25-2017, 05:14 PM
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I have pulled the oil pan in first gen firebird with trans in car
__________________
2008KRE Q16 Winner 2014 atco raceway doorslammer winner 86 grand am tube car 8.95 @152 455 eheads solid flat tappet cam Hoffman Racing building and racing Pontiacs for 35 years |
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#15
07-25-2017, 05:14 PM
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tube chassis car?Tom
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#16
07-25-2017, 08:44 PM
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Regular chassis street car
__________________
2008KRE Q16 Winner 2014 atco raceway doorslammer winner 86 grand am tube car 8.95 @152 455 eheads solid flat tappet cam Hoffman Racing building and racing Pontiacs for 35 years |
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