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Thread: TB42 Tappet Adjustment

  1. #21
    Expert ripper's Avatar
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    Quote Originally Posted by patch697 View Post
    Adjustment should be made while engine is warm but not running
    This made me smile. They're hard enough to get to at the best of times, hate to think how it would be to adjust them with the engine still running :-)
    1989 GQ LWB Wagon, TB42 Petrol/LPG Auto. Bought Dec 2010

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  3. #22
    RIP - valued member and true gentleman of this forum that will be missed by many! Silver's Avatar
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    Quote Originally Posted by ripper View Post
    This made me smile. They're hard enough to get to at the best of times, hate to think how it would be to adjust them with the engine still running :-)
    I saw a bloke doing that with a 6 cyl holden when I was a kid. Oil squirting here and there :-)

  4. #23
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    Quote Originally Posted by Silver View Post
    I saw a bloke doing that with a 6 cyl holden when I was a kid. Oil squirting here and there :-)
    I thought Holden engines all had hydraulic lifters? ie: no rocker adjusting?
    Obviously he had no idea :-)
    1989 GQ LWB Wagon, TB42 Petrol/LPG Auto. Bought Dec 2010

  5. #24
    RIP - valued member and true gentleman of this forum that will be missed by many! Silver's Avatar
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    Quote Originally Posted by ripper View Post
    I thought Holden engines all had hydraulic lifters? ie: no rocker adjusting?
    Obviously he had no idea :-)
    It was 35 - 40 years ago - perhaps it was a Ford? Can't remember, but I do remember it was tappets, the engine was running and supplying oil to the rockers.

  6. #25
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    Quote Originally Posted by Silver View Post
    the engine was running and supplying oil to the rockers.
    and also oil to the mechanic. HAHAHA
    1989 GQ LWB Wagon, TB42 Petrol/LPG Auto. Bought Dec 2010

  7. #26
    Patrol Freak fixer982's Avatar
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    Not so strange to do them running if they are hydraulic. When I had V8 Chevrolet engines in drag cars, I used sold lifters with roller rockers, and we used to set the tappet clearances with the engine running. I had a couple of stock rocker covers with the tops cut off and the edges ground smooth. Still splashed a bit of oil but it worked well. Most of the experienced Holden mechanics I knew set the 6 cylinder hydraulics while they were running, backing each one off until noisy, then down until the noise stopped, then 1/4 turn at a time until I think it was half a turn after noise stopped.
    Last edited by fixer982; 17th May 2011 at 06:14 PM. Reason: typo
    GU Series 4 Ti, 3.0 CRD Auto with extra bits

  8. The Following User Says Thank You to fixer982 For This Useful Post:

    Bob (18th May 2011)

  9. #27
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    Quote Originally Posted by fixer982 View Post
    Not so strange to do them running if they are hydraulic.
    Thanks fixer, never heard of that, but never worked with solid lifters or roller rockers either.
    1989 GQ LWB Wagon, TB42 Petrol/LPG Auto. Bought Dec 2010

  10. #28
    Rotaredom NissanGQ4.2's Avatar
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    Adjusted mine and my old mans tappets 2day......... what a sh!tty little job that is, spend more time taking crap off the cover than you do actually adjusting the tappets! Got 2 love over paid engineers.

    19112011649.jpg 19112011650.jpg

    whats this...... I can now hear my stereo over the motor *L*
    Last edited by NissanGQ4.2; 20th November 2011 at 07:50 AM.
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    WARNING: Towballs used for recoveries can, and do kill people and damage property.

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    thanks for the information it is so useful

  12. #30
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    thanks for this tread ive never done mine but maybe will have to check mine now i know how to do it thanks

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