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Rear Main Seal

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  #1  
Old 10-18-2007, 09:55 AM
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Default Rear Main Seal

'96 Chevy, 350.

Can this be replaced without removing the engine or transmission ?

Thx
 
  #2  
Old 10-18-2007, 12:50 PM
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Default RE: Rear Main Seal

no
 
  #3  
Old 10-18-2007, 01:37 PM
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Default RE: Rear Main Seal

nope...pull the tranny
 
  #4  
Old 10-18-2007, 04:13 PM
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Default RE: Rear Main Seal

Well, its getting from bad to worse, now getting low oil pressure at idle, so guess the bearings are shot.I suspect the failed intake gasket a had change a while back didnt help the situation. Its a shame..130K miles on the truck and everything else is in good shape.
 
  #5  
Old 10-18-2007, 08:03 PM
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Default RE: Rear Main Seal

Low oil pressure on a guage or dash light?
If it's a dash light you may have been running low pressure for a while, time for a rebuild.
Silly question, did you check the oil level?
 
  #6  
Old 10-19-2007, 04:39 AM
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Default RE: Rear Main Seal

if somebody used abrasive discs to clean the heads on your intake job....the abrasive dust clogged your oil pickup tube....i'd ask questions
 
  #7  
Old 10-21-2007, 02:10 PM
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Default RE: Rear Main Seal

Yeah, oil level is good. Funny thing, ever since the intake job (about 6 months ago), the pressure was higher than before the intake job. At idle prior to intake job, was running about 40 psi at idle, after intake job, close to 60.
I will say this...when the intake failed, there was considerable water in oil, so maybe i've just been lucky so far.
At any rate, i'm gonna drop the pan to take a peek. From the looks of it, I wont have to jack up the engine to remove the pan
 
  #8  
Old 10-21-2007, 03:05 PM
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Default RE: Rear Main Seal

Whatever you do DONT give up on the truck. Those motors are a dime a dozen here in washington and I'm sure everywhere eles. At the Pull A Part here, if you find a goodmotor and pull it yourself it's only 100 bucks.
 
  #9  
Old 11-06-2007, 06:21 PM
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Default RE: Rear Main Seal

Well, gents...after further review...I got lucky. Finally got a chance to crawl under the truck. Seal OK....Turned out the Oil pressure sending unit was the culprit. Leaking like a big dog, which would also explain the irratic oil pressure. $26 bucks and some cussing (due to the location and pain in the a$$ to get to) we're all good now.

 
  #10  
Old 11-06-2007, 08:25 PM
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Default RE: Rear Main Seal

Excellent....sending unit never crossed my mind.
 


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