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Persistent oil leak

Discussion in 'The Garage' started by skink4president, Feb 4, 2006.

  1. skink4president

    skink4president Registered Member

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    HELP! I've just about lost it over this one. A few months back I dropped the oil pan on my '73 k5 (350/350) to replace the rear main seal. While I was at it I dropped in a new pump, pick-up and new stock oil pan (the old one was beyond recognition). Almost immeditately after getting everything back together the pan-to-timing cover seal starts to leak:mad:. Because it's a '73 I used the thin front seal not paying attention to the fact that the previous owner had thrown on a crappy aftermarket timing cover that I was told uses a THICK front seal. So. . . . . I drop the pan again and throw in a thick seal. Thing still leaks:mad::mad:. So I junk the old chrome timing cover in favor of a new Edelbrock aluminum one with the idea that it'll be more rigid and contains no welds. Guess what. . . . thing still leaks:mad::mad::mad:!

    Now I'm thinking of going with a one-piece gasket for a change of pace to see if it helps. I'm installing the gaskets properly and torquing the pan to approx. 12 ft. lbs.

    Any ideas???? Typically I wouldn't mind a small oil leak but it's gotten personal:D!
     
  2. dave_90_blazer

    dave_90_blazer 1/2 ton status

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    did you use RTV at the corners?
     
  3. readymix

    readymix 3/4 ton status

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    Agreed
     
  4. skink4president

    skink4president Registered Member

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    Yeah, I RTV'd the corners. Followed all the rules to a T. Is there a difference between a '73 pan and a '74? As far as I know early SB is early SB but up to '73 they used the thin front seal and after the thick. I fugured this had to do with the timing cover and not the pan. I think they changed to the thick front seal so the TC could be replaced without removing the pan (that's what some old mechanics have told me:))
     
  5. slider

    slider 1/2 ton status

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    Use a felpro one piece oil pan gasket. No leaks and its reusable:D
     
  6. mouse

    mouse 1/2 ton status

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    I'll second the one-piece felpro unit. That thing is the best oil pan gasket I have ever used. Its like a piece of art....wait a minute, its a gasket. Oh well, it is nice, and it doesn't like to leak.
     
  7. dleroy43

    dleroy43 1/2 ton status GMOTM Winner

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    go through some mud :dunno: that usualy stops my leaks :burb:
     
  8. 1-ton

    1-ton 1/2 ton status Premium Member

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    You might try torquing it to more than 12 foot pounds. I usually go about 20 foot pounds. I know 12 pounds is the recomended, but I have never agreed with that.
     
  9. skink4president

    skink4president Registered Member

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    Thanks to everyone who posted.:waytogo: I'll grab one of the Fel-pro gaskets this week. BTW - I'm using those $60 :eek1: Fel-pro valve cover gastets. I know it's a lot for valve cover gaskets but the things are great (silicone, compression limiters, reusable, etc) and put a stop to those annoying leaks!
     
  10. mouse

    mouse 1/2 ton status

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    I didn't know they made those. I'll have to do a search and find some. I've been battling valve cover leaks for a long time....
     
  11. Russell

    Russell LB7 Tahoe Status Premium Member GMOTM Winner

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    It costs me 55 bucks each, but I will NEVER touch another multi-peice oil pan gasket ever again!

    Those felpro silicone gaskets are simply incredible!
     

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