Rear Main Seal - Teflon or Rubber
#1
Rear Main Seal - Teflon or Rubber
Hey guys,
long story short, I’ve had a my engine out a two times in the last two years trying to figure out my oil leak issue. My engine builder says the top of the engine appears to be dry. I’ve replaced the rear main seal twice, oil pan gasket twice and a new oil pan itself. I truly think it’s the rear main seal again and will likely change into again. Ive been using the Teflon felpro one this entire time. Would it be better to try out the rubber one? Not sure if it’s not sealing properly onto the crank or what. I’ve done the dye, ran it without the tranny. Seems it leaks bad under load.
long story short, I’ve had a my engine out a two times in the last two years trying to figure out my oil leak issue. My engine builder says the top of the engine appears to be dry. I’ve replaced the rear main seal twice, oil pan gasket twice and a new oil pan itself. I truly think it’s the rear main seal again and will likely change into again. Ive been using the Teflon felpro one this entire time. Would it be better to try out the rubber one? Not sure if it’s not sealing properly onto the crank or what. I’ve done the dye, ran it without the tranny. Seems it leaks bad under load.
#5
Village Troll
iTrader: (2)
Once you take the seal off, check the crank journal to see if there's a grove worn in. I think last seal I replaced was rubber. For some reason I remember being told the teflon ones have more of a tendency to wear a grove into a journal than the rubber ones. Also, don't remember which one, but one of them needs to be installed dry and the other requires a thin coat of oil. Instructions will say, but make sure to pay attention.
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#14
Village Troll
iTrader: (2)
Good Lord, look at that thing. I bet it costs a thousand dollars. Maybe $999.99? I mean, I've always gotten away with the **** plastic o-ring-like tool that came in the box and a rubber mallet.
Edit- So I was a little off. See it going for around $200. No, thank you.
Edit- So I was a little off. See it going for around $200. No, thank you.
#16
TECH Resident
iTrader: (1)
I did mine over the summer and didn't use any sort of tool, just tapped it in likely with a hammer and socket extension. I later discovered it was the oil pressure sending unit that was winter-proofing the bottom of my car and not the rear main. No biggie as I was in there anyway.