Rear C/S oil seal

[Deleted User]
[Deleted User]
edited November -1 in HUDSON
Has anyone came up with a newer style rear crankshaft oil seal to replace the old rope type in the Hudson big six? Thanks. Norm:confused:

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  • hudsonguy
    hudsonguy Senior Contributor
    herm wrote:
    Has anyone came up with a newer style rear crankshaft oil seal to replace the old rope type in the Hudson big six? Thanks. Norm:confused:



    Norm,



    When I bought a gasket set from Dale Cooper last year, it included a rear crank seal that was made from a braided graphite material. Very good stuff, that seems to work great.



    For sealing the bearing cap in place, I didn't use the wooden sticks, and chose to use the (I believe) cotton 'string' that I coated with silicone sealer before they were packed into their cavities.



    I followed Walt Mordenti's instructions to a T (as I remember, I even called him at home from my garage during the job)....anyway, it doesn't leak a drop, so it all worked out great for me.
  • duncan
    duncan Expert Adviser
    Hi Herm I'm restoring a 54 Hornet Hollywood with a 308 engine in it.

    I found a two piece neoprine seal from a older chrysler 318v 8

    engine . It fits the cap and block like a glove . The seal sticks above the cap and block just enough. I have had the motor running several times

    but not in service yet. No leaks yet from rear main. If you check it out

    and install the seal in the cap and block you will think this is a factory

    seal . That's how good it fits. Hudsonly duncan
  • [Deleted User]
    [Deleted User]
    Got a part number on that?

    Thanks
  • duncan
    duncan Expert Adviser
    Sorry no part number yet but will find it duncan
  • [Deleted User]
    [Deleted User]
    Thanks apreciate it. I have a 308 apart and would like to see what the fit is like.
  • Unknown
    Unknown
    If the 51 is the 51 engine the neoprine seal for the mopar or sbc or later Hudson wont fit. The 202 and later big 6 used the neo seal.
  • mars55
    mars55 Senior Contributor
    For anyone who wants to try this, the part number for a Chrysler 318 '57 to '66 is as follows.



    Fel-Pro BS40245



    NAPA RS606



    These are rubber.



    For those who going first cabin.



    BCA/National 5414 Big $$$
  • hornet53
    hornet53 Senior Contributor
    ah, the old "poly" 318. good to know
  • duncan
    duncan Expert Adviser
    Hi Mars 55 Iasked about the 2 piece seal for the dodge 318 v8 engine.

    I'm fron Alberta Canada we have a Bumper To Bumper in the town near where live soI phoned they said 1957- 89 same seal Fel -Pro #BS 40245

    I buy all my parts there. duncan
  • [Deleted User]
    [Deleted User]
    Duncan -I looked at the 318 seal at an auto parts store.The seal looked close to the right size but one of the halfs had extensions sticking out to the sides at each end of the seal an inch or so.Did you cut these off or was I looking at the wrong seal? Thanks. Norm
  • duncan
    duncan Expert Adviser
    Hi Norm Neither of my 2 halfs had extensions sticking out at each end.

    When I got the seals they were not on a package .It is possible that I used

    1/2 of two seal kits. 1 half from each kit. Ray

    PS Did the 1/2 fit good in the rear main with lip facing inwords.

    I got these seals from the mech. that did the valves for me.He took the no.off the seal and sent it away 318 dodge what the guy said. duncan
  • Unknown
    Unknown
    Am I correct in assuming these seals would fit my 54 232 as well?
  • duncan
    duncan Expert Adviser
    Hi Jim Alberta

    If the sealing grooves are the same on tne 232 as the308

    yes .Try it and see. duncan sealing grooves meaning where the rope seal fits into.
  • duncan
    duncan Expert Adviser
    Jim Alberta Ijust thought of something after my last reply

    are the crankshafts the same size on the 232 compared to the 308.

    You would have to check it out and deside. duncan
  • mars55
    mars55 Senior Contributor
    All six cylinder engines of 232, 262 and 308 cubic inches 1948 to 1954 have the same size main bearing crankshaft diameter of 2.5 inches. I am almost sure that the 1955 and 1956 308 cubic inches engines do too.



    Here is a link to a picture of the seal.



    http://www.napaonline.com//MasterPages/NOLMaster.aspx?PageId=470&LineCode=FPG&PartNumber=BS40245&Description=REAR+MAIN+BEARING+SET
  • duncan
    duncan Expert Adviser
    marrs 55 If the 2 halfs of the rear main seal are a formed seal that should be the one I used . Cut off the 2 wings Give it a try thats what I did. No need to pound in this seal just put it in like you install a shell in a con rod.

    I hope my info is helpful.
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