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Thread: New to engine building - gaskets

Discuss the Austin Healey Sprite and the MG Midget. Two different but similar cars sometimes referred to collectively as the Spridget.

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    Senior Member JimLaney's Avatar
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    New to engine building - gaskets

    rebuilding my 1098 and can't determine which gaskets require sealer or gasket maker and which do not.
    Used sealer on both sides to attach backplate gasket to block. used no sealer to install head gasket.
    used light silicone (red) gasket sealer (both sides) to attach water pump and gasket to block...

    Does one use gasket sealer on the cork gasket for the thermostat housing ? how about the cork gasket for the valve cover gasket ? both sides?
    sealer for the rubber gaskets for the lifter vault covers? Do you use gasket sealer on the oil pan gasket?

    book I have on engine building assumes one knows all this - why, I don't know....

    I have read some of the threads that argue the merits (or lack thereof) of silicone based gasket sealers/makers there fore I use it sparingly but the gasket tack doesn't seem like enough in most applications.
    Jim Laney
    2 MKIII Sprites - on the block
    2009 Kawasaki Ninja 500 R
    2013 Kawasaki Ninja 650
    2019 Honda Ridgeline AWD

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    Jedi Warrior Jer's Avatar
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    Re: New to engine building - gaskets

    I use permatex grey on the valve cover gasket (only the tin cover side) & both side's of the thermostat gasket, simply because every other configuration has always ended in a leak at the thermostat housing ha ha (yes its a bastard to break loose later on), I haven't had to do an oil pan gasket but I would probably do the same thing I do for the rocker cover (tin can side only).
    Jer
    President, Sprite Midget Club USA - Algoma Chapter, Ontario, Canada
    Used to own a 1967 MG Midget & 1974 MG Midget (Driver's)
    Had a Bugeye Sprite Project & TR3 Projects that got sold off before I got serious..

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    Jedi Trainee Joe Schlosser's Avatar
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    Re: New to engine building - gaskets

    I always put a dab of the Permatex grey or black where the pan gasket meets the cork that goes around the bearing housing. I add a dab on both sides if the pan gasket right at the junction. This area is prone to leaking.
    A light coat on Permatex grey on the pan gasket and on the timing chain cover gasket has never hurt anything. The timing cover tends to leak at the bottom. They are getting old and were probably overtightened at one time and warped a little so some additional sealer helps.
    The grey and black are similar except for temp rating.
    I also generally "glue" the valve cover gasket to cover with gasket cement. It keeps it from sliding around when you tighten it
    I always use a coat of spray copper on the head gasket (Napa makes a good one) but this is just a personal preference, dry also works fine.
    Joe Schlosser
    SCCA National License, Retired
    60 Bugeye, since 1966
    SCCA FP, sold but not forgotten

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