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Modern Front Crankshaft Seal

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  • Modern Front Crankshaft Seal

    From Stipes, anyone use these? Do they hold up?

  • #2
    Have not seen Stipe's, but I have used the one from Brattons with good results.
    Eastern Connecticut


    • #3
      whats wrong with the rope seal if its installed correctly?


      • #4
        Mixed results, see other threads. Stipes has the type with extra o ring. Some engine builders suggest separating the inner and outer pieces of some of the modern seals and inserting some sealant between the sections before reassembly due to oil getting past them. Our car came to us with modern seals ( both front and rear) which failed badly and had to cut out the front (metal core) to replace it with rope seals without removing the pulley. Then, later the engine had to be rebuilt due to those seals plus other issues. Once the rear fails and the crank modified, oil has an easy exit. Stay with stock configuration is our experience.
        Some overseas companies (China,India) still produce 1/2" or larger asbestos type rope for boilers, etc. but not sold in US. We found some older rope types with a Ford stamp on them but were very hard even after soaking in ATF. Still soaking ! Perhaps they are unusable? Also, some suggest not oil-soaking the newer teflon types, and Best gasket didn't recommend via our inquiry using graphite types for the front oil pan.
        Last edited by plyfor; 03-27-2018, 09:49 AM.


        • #5
          Too bad the graphite aren't available yet. Changed my oil last night and found small pieces from the teflon rope on the drain plug. I'm sure there's more on the oil pump screen.


          • #6
            Ok, can I get pointed to a good write-up on proper rope seal install?


            • Mitch
              Mitch commented
              Editing a comment
              Look no further than in our engine tech thread. Installing them dry, oily, water soaked has been debated throughout time.


            • dmdeaton
              dmdeaton commented
              Editing a comment
              thanks Mitch, I just found it before I read your comment. I also printed off the 3 pages on installing a leak proof oil pan. I am gathering intel as I am about to tear my used engine apart to regasket it and check a few things before I throw it between the frame rails.

          • #7
            Go to Flat Replacement; they have graphite impregnated fibreglass rope gasket in varying sizes. Not sure how it would hold up to the front pulley but perhaps someone could try it on a test engine/ stand, etc.We also have some graphite rope for a rear seal in GM cars; Best gasket has it as well, but it's not larger dia. to fit the A.
            Also here's a photo of the Stipe type seal. This has the inner lip seal that some say to glue/seal to the outer alum housing.
            Attached Files
            Last edited by plyfor; 03-27-2018, 03:23 PM.


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