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Thread: Holden 2a build "OPAL"

  1. #121
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    EFFFA396-D8C8-48D0-B085-853AE62F9644.jpg

    Opal doing a load to green waste………

    Cheers Paul

  2. #122
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    Looks like a garden growing in the back

  3. #123
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    Its that season again...........

    IMG_6636.jpg IMG_6639.jpg IMG_6643.jpg IMG_6644.jpg

    Common sense has prevailed and firewood collection is allowed as a reason to leave home

    Cheers Paul

  4. #124
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    EA98090F-CD1D-47DD-865A-280B38B19505.jpg Yeeha this find keeps on giving

    7A236F6E-5C23-458C-9598-E964D888A3C4.jpg View from the top

    Cheers Paul

  5. #125
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    Mar 2013
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    Opal has developed a tick in the 3.3 Holden power plant. I’ve replaced the hydraulic lifters and it’s still there and no adjustment of rockers will make it go away. Removing no 1 plug lead while the motor is running and the tick goes, replace lead without electric jolts up my arm and tic returns. Compression is 135/140 psi across all cylinders with no1 being 140psi.
    My diagnosis without stripping the motor is a cracked or broken piston skirt on no 1 piston.
    Fortunately I have other vehicles to fall back on, I also have a red 202 that I started and ran for a few minutes before I removed it from a doner parts car a few years ago.
    My intention is to inspect clean and reassemble this engine and swap it for the 3.3.
    Today I pulled the head off the 202 and there is only the very slightest of ridges at the top of the bore so I’m taking this as a good sign.
    I will post pictures of progress and will probably need some advice ,first impressions are that the Holden 202 is a lot less complex than the 2.25 Rover engine in freshened up a few years ago

    Cheers Paul

  6. #126
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    I am probably wrong but just wondering if you could have a faulty spark plug. The centre electrode these days is made in two pieces, you may have a spark jumping internally. The other thing is you could have a bent pushrod that is hitting on the block or broken ring.

  7. #127
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    Defiantly not a bent push rod I checked them as I did the lifters,I will swap spark plugs and see what happens, something I never thought of thanks

    Cheers Paul

  8. #128
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    Swapped around spark plugs noise still in no1 cylinder somewhere. So I’ll pick away at the red 202

    Cheers Paul

  9. #129
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    Some progress stripping and cleaning head components

    29A9D20C-7EA8-4ED5-95DA-903E6912F033.jpg 93B2BFD2-D6E3-468A-907C-CEA692BF66F5.jpgB31E055D-2701-4D20-8EBA-4E424D7BFF38.jpg

    Rocker pivot saddle has arrows cast in them which point towards the manifold when assembling

    5F15F9AF-4588-4009-9EA8-AF194641CC55.jpg Valves next

    Cheers Paul

  10. #130
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    Special spring compressor tool
    ECBCC7CE-571C-4970-B9E1-F100629DBB02.jpg

    Valves removed and cleaned will lap them before I put everything together
    5B388E1B-F26A-4884-9AE9-25DE6FA04DAD.jpg

    There were spacer washers under the exhaust valve springs no mention of this in the manual

    6B0C667E-D979-49EF-92C2-903A03BE05A5.jpg

    Cheers Paul

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