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Thread: Intake manifold install - ube/oil orings or RTV?

  1. #16
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    Default Re: Intake manifold install - ube/oil orings or RTV?

    Quote Originally Posted by Prairiehammer View Post
    Were there shorter bolts (16mm long) in those holes (upper bolt on #2 cylinder and upper bolt on #3 cylinder)?
    The rest of the bolts (quantity 6) are 20mm long.
    I honestly do not remember. I just removed all boots to make room for valve covers removal and also to clean them and threw all of the bolts in a ziplock bag.


    What do I do considering both bikes have been like this for years.

    Judging from the condition of the gaskets and seals that O am pulling, it's been well well over a decade that these bikes have been in this condition.

  2. #17
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    Default Re: Intake manifold install - ube/oil orings or RTV?

    Quote Originally Posted by jfman View Post
    I honestly do not remember. I just removed all boots to make room for valve covers removal and also to clean them and threw all of the bolts in a ziplock bag.


    What do I do considering both bikes have been like this for years.

    Judging from the condition of the gaskets and seals that O am pulling, it's been well well over a decade that these bikes have been in this condition.
    When you reassemble, just insure that the shorter bolts go where they are supposed to go. Clean the threads on the short bolts and in their respective hole with degreaser and then apply a very light coating of sealant on the bolt before mounting. Don't use very much sealant. Excess sealant could be pushed into the now open oil gallery.
    Kevin M. Campbell Hidden Content
    1974 Honda CB750, 1991 Venture Royale "the Tuxedo"
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  4. #18
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    Default Re: Intake manifold install - ube/oil orings or RTV?

    Is this a common problem for these bikes or am I unlucky that both of my ventures have this?

  5. #19
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    Default Re: Intake manifold install - ube/oil orings or RTV?

    Quote Originally Posted by jfman View Post
    Is this a common problem for these bikes or am I unlucky that both of my ventures have this?
    It is a common problem.
    An inattentive mechanic may not notice the different bolt lengths.
    AND the same inattentive mechanic when looking at the parts diagram sees the longer bolt (91317-06020)going into the threaded hole in the head at the exact location that the shorter bolt (91314-06016) should go. The parts diagram is wrong, but if the mechanic were to look at the parts LIST, he should see that there are just two 16mm bolts (#7) and the list correctly assigns the shorter bolt to its proper location. But the drawing does not!
    Click image for larger version. 

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    Last edited by Prairiehammer; 03-26-2020 at 12:39 PM.
    Kevin M. Campbell Hidden Content
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