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  1. #1
    Senior Member 1101's Avatar
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    Default Car gaskets , gasket goop or not ?

    I replaced a valve cover gasket on my old Ford Laser , 1 week later its leaking more oil than before . Its now dripping out onto the driveway .
    It was a thick rubber gasket, so I assumed it didnt need any gasket goop.

    I havnt had a chance to see where the oil is now leaking from, Im assuming its the new gasket, might not be
    If its not an easily replaceable gasket leaking oil , it could be too expensive to fix (?)
    It may fail its WOF if the garage deem it to be leaking too much.

    So, do I need to put gasket goop on new gaskets ? On both sides ?
    if so, any particular goop for rubber gaskets ?

  2. #2
    Senior Member Lawrence's Avatar
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    Default Re: Car gaskets , gasket goop or not ?

    Did one of the Banks on a Maxima not long ago

    Was recommended to put gasket sealer on the abrupt turns where it goes over the cam drive Also important to follow the tightening sequence and Torque settings

  3. #3
    Its ok I am from Motueka. prefect's Avatar
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    Default Re: Car gaskets , gasket goop or not ?

    I dont think you would need any gasket compound with a rubber gasket, the problem with valve gear gaskets is they need to be tightened down in a cross sequence a little bit at a time. I used to put grease on a cork gasket being a Jew so if I took the cover off the gasket wouldnt stick and break and could be reused.
    Its amazing how Potatoes give us chips,fries and Vodka.

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  4. #4
    Smiling Down On Youse SurferJoe46's Avatar
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    Default Re: Car gaskets , gasket goop or not ?

    I don't like the thick rubber gaskets since they tend to squish out of the place where they need to be - especially if there's any kind of goop on it.

    If I were to have to use a thick rubber or cork or composite gasket, I'd prefer to use a spray contact cement that dries and once the gasket even touches the valve cover, it's there forever!

    Actually, with the advent of RTV Silicon 'Gasket maker' type sealants - I don't use anything but the silicone room-temperature vulcanizing stuff as the only seal material.

    The copper- colored RTV is for exhaust manifolds and header gasket replacements.

    The Black RTV is typically for oil pans and valve covers.
    The Red RTV is for objects that get gasoline or coolant on them.
    The Blue RTV I use for diesel applications.
    The Clear & White RTV is for sinks, tubs and shower stalls, not automotive.

    I've practically built entire engines with this stuff - except for the head gaskets, of course!


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  5. #5
    Senior Member 1101's Avatar
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    Default Re: Car gaskets , gasket goop or not ?

    Quote Originally Posted by SurferJoe46 View Post
    I don't like the thick rubber gaskets since they tend to squish out of the place where they need to be - especially if there's any kind of goop on it.
    It has a channel cut into the valve cover that the thick gasket sits in. It wasnt going anywhere.
    The workshop manual didnt give any torque settings for the valve cover, so I guessed it, and did the usual star sort of tightening pattern.

    Could it just need a re-tighening as the rather thick rubber squishes down ?

    Its only $20 for another gasket, so I may just re-do it with some goop this time . Fingers crossed its not leaking from somewhere else.

    If I can smell it, does that mean the oil leak has to be running down across the exhaust manifold ?

  6. #6
    Smiling Down On Youse SurferJoe46's Avatar
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    Default Re: Car gaskets , gasket goop or not ?

    Leaking oil can hit the exhaust crossover - if you have one.

    Or it may be running onto the catalytic convertor - or pretty much anywhere the exhaust system is - or exists, that is.

    Did I miss seeing what type of engine this is?
    Ford Laser doesn't work here as an identification in the US.
    It sounds like the valve cover is cast aluminum and has a channel for the gasket - and as such it should not squish out.
    Were the channels clean?


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  7. #7
    amateur expert dugimodo's Avatar
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    Default Re: Car gaskets , gasket goop or not ?

    Depending how old it is they started out as rebranded mazda familias and maybe in the states as a mecury tracer.
    But I have no Idea if that continued.
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  8. #8
    Senior Member Lawrence's Avatar
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    Default Re: Car gaskets , gasket goop or not ?

    Most vehicles these days have Rubber gaskets that over time harden then are inclined to leek

    When they are removed they usually break or have broken and allow oil to escape

  9. #9
    Senior Member 1101's Avatar
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    Default Re: Car gaskets , gasket goop or not ?

    Quote Originally Posted by dugimodo View Post
    Depending how old it is they started out as rebranded mazda familias and maybe in the states as a mecury tracer.
    But I have no Idea if that continued.
    Its a rebranded , lower speced Mazda 323/Familia .
    Supposedly, the Mazda's were made in Japan, the Fords in Korea (or an old wives tale ? )

    NZ, being clean & green, didnt require or fit Cat Converters back then.

  10. #10
    VoidMaster
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    Default Re: Car gaskets , gasket goop or not ?

    Old engine = positive crankcase pressure = oil leaks
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