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Thread: Problems with Rocker Arm Assembly

  1. #1
    BuickMan64 Guest

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    I'm currently rebuilding the 401 in my 64 Wildcat. I'm reinstalling the right rocker arm assembly. I have torqued the assembly to factory specs & for some odd reason there is still a gap between the rocker arm lobes & the push rods. They aren't going all the way up in there . Any suggestions as to what I'm doing wrong? Any help would greatly be appreciated. Thanks!

  2. #2
    bluewhale13 Guest

    Post

    What thickness is the headgasket that you installed? Did you fill the lifters with oil and prime them prior to there installation? If the lifters are not pumped up with oil this could be the reason for your gap you are experiencing.

  3. #3

    Post

    What has changed?

    Have you milled the heads or block?

    Are you using the same heads as before?

    Are you using the same pushrods?

    Did you change lifters? Some lifters have a different height.

    Are you using a remanufactured cam with a smaller base circle?

    -Bob Cunningham

  4. #4

    Post

    Make sure the base of your rocker arm supports are all the way down on the dowel pins in the head. These can bind and hold the shafts up.
    Steve B.



    67 GS 525 Buick Stage IV
    66 GS Convertible
    65 GS HT
    63 Riv
    02 Subaru WRX Turbo
    03 Ford Cobra Convertible (Factory Supercharged)

  5. #5
    BuickMan64 Guest

    Post

    Thanks guys for your suggestions. I quickly realized after comparing a new push rod to one of my old push rods that Kanter Auto Parts sent me the wrong set. I sent them back & they sent me the correct ones. I did get the car running but she's running pretty rough. I'm hoping all it needs is the points changed. Also, some white smoke is coming out my exhaust pipes. Any suggestions on how to resolve either one of these issues? Thanks!

  6. #6

    Post

    bm,
    White smoke is usually water, but might just be condensation from the car sitting. I would not worry too much until you get it up to operating temp for a while. Just keep a good eye on the temp gauge.
    The rough running could also bee from sitting ... old fuel etc. Fill it up with 93 octane and a can of fuel system cleaner and drive it a while. It might clear up.
    Bill Koustenis
    Advanced Automotive Machine
    Waldorf Md

    Original owner:
    1971 Chevelle Heavy Chevy
    1984 Buick Riviera
    1999 Chevy Tahoe 2DR 4WD

    Enginerepairshop.com

  7. #7
    BuickMan64 Guest

    Post

    Thanks BillK for your ideas. That would make sense. I will try your suggestion about the 93 octane & fuel system cleaner.

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