SBC rear crank seals
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    The Camino Kid Britdragster's Avatar
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    SBC rear crank seals

    Hi all. I know I asked a similar question to this a few months ago asking about changing the rear crank seal on a sbc whilst the engine is in situ. To be honest I haven't gotten round to changing it yet hence the new enquiry. When changing these seals do they have to be replaced like for like, i.e original rope type for the same or can the rope type be replaced with a newer neoprene or rubberised type? sry, not sure of what they're made of.
    Cheers, Roger.

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    Official RnS Addict Mark H's Avatar
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    Re: SBC rear crank seals

    Just had a quick look in the 'How to re-build your sbc' book.All it says in there is that it is 'very difficult' to fit a later neoprene seal in a block designed for the rope type seal.If I remember correctly,some machine work is needed to the rear main cap and block.Sorry I can't be of more help than that.
    Mark.

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    Official RnS Addict Zody's Avatar
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    Re: SBC rear crank seals

    Quote Originally Posted by Britdragster View Post
    Hi all. I know I asked a similar question to this a few months ago asking about changing the rear crank seal on a sbc whilst the engine is in situ. To be honest I haven't gotten round to changing it yet hence the new enquiry. When changing these seals do they have to be replaced like for like, i.e original rope type for the same or can the rope type be replaced with a newer neoprene or rubberised type? sry, not sure of what they're made of.
    Cheers, Roger.
    You can replace the seal on these in situ, I'v done it you have to undo all the main caps around 1/4" down on the bolts, soak the new half seal in washing up goo, slowing push the top seal round the groove..make sure you stagger the seals, job done...... hope this helps.... good luck
    Last edited by Zody; 08-05-2010 at 12:26.
    The car is open, the keys are under the dog !

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