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Thread: Oil Leak - Ideas?

  1. #21
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  2. #22
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    IMG_0767.JPG

    Pics of the leaking engine. This is looking up at the driver side of block from underneath.

  3. #23
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    This pict with stabilizer bar covered in oil, suggest front main seal leaking... Balancer slings it off while engine is running...







    My other rides (that actually do run & drive)

    1969 Fairlane Cobra 428CJ 4-Speed << New 49th Birthday Picture

    1972 Comet GT - 306 C4

  4. #24
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    Quote Originally Posted by TurboCoupe50 View Post
    This pict with stabilizer bar covered in oil, suggest front main seal leaking... Balancer slings it off while engine is running...

    Thanks. Everything is wet! The front cover is soaked with oil so i cant be sure if these lower items are the source. The active dripping occurs in the bck of fhe engine on passenger side of the rear face of block. My best guess is that head gaskets are doing it and oil runs down side of block.

    If i pull this motor, whats best plan? Are newer version of this motor useable in his car? If not, is a newer short block useable with the old style heads and intake? How hard is it to put a 5.0 in wth retrofitting and misc parts? Would it bolt to my 3 speed?

  5. #25
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    Quote Originally Posted by atengnr View Post
    Thanks. Everything is wet! The front cover is soaked with oil so i cant be sure if these lower items are the source. The active dripping occurs in the bck of fhe engine on passenger side of the rear face of block. My best guess is that head gaskets are doing it and oil runs down side of block.

    If i pull this motor, whats best plan? Are newer version of this motor useable in his car? If not, is a newer short block useable with the old style heads and intake? How hard is it to put a 5.0 in wth retrofitting and misc parts? Would it bolt to my 3 speed?
    A head gasket almost never leaks oil, I'd keep looking... As already mentioned you should clean the wet areas and then watch for a origination point...

    As far as swap if you aren't versed in such, forget it... The transmission is about the only thing that will bolt up, linkages, brackets, wiring(incl computer), hoses, exhaust, etc, etc, etc all will have to changed/modified...






    My other rides (that actually do run & drive)

    1969 Fairlane Cobra 428CJ 4-Speed << New 49th Birthday Picture

    1972 Comet GT - 306 C4

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    Quote Originally Posted by TurboCoupe50 View Post
    A head gasket almost never leaks oil, I'd keep looking...
    A 3.8L headgasket almost never leaks oil. Lots of Jap cars (especially Subaru) have external oil leaks from the HG, oh, and the big Neon recall Chrysler had.
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    Quote Originally Posted by TheFoeYouKnow View Post
    A 3.8L headgasket almost never leaks oil. Lots of Jap cars (especially Subaru) have external oil leaks from the HG, oh, and the big Neon recall Chrysler had.
    I dont argue this, but I am not sure what else could be seeping down the back of the motor. The intake seal in the back is slightly wet, but not the cause of active dripping. Curiousity is getting the best of me, and I think I am going to pull the motor so I can see definitively where this was from, and also be able to replace all from the top down.

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    Unless someone here is interested in a rust free 84 body for $1000.

  9. #29
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    Quote Originally Posted by atengnr View Post
    I dont argue this, but I am not sure what else could be seeping down the back of the motor. The intake seal in the back is slightly wet, but not the cause of active dripping. Curiousity is getting the best of me, and I think I am going to pull the motor so I can see definitively where this was from, and also be able to replace all from the top down.
    Rear intake seal. Rear main seal. That's about it.
    '88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, Edelbrock 70mm TB, 76mm C&L MAF, 30lb injectors, 2.5" exhaust, AOD with 2800 PI converter, 8.8 with 3.73 gears, 31 spline Traction-Lok, 31 spline Moser axles, 04 Cobra front arms, Maximum Motorsports extreme duty rear arms, subframes.
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  10. #30
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    Yes. Perhaps the rear intake is seeping from a corner that I cant see. The rear main could be leaking, but its not whats causing oil to seep down the from the starter mounting surface right? Would be more right where crank is on back of motor correct?

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