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Timing the crank and camshaft with TD pump HELP!

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  • #1

    Timing the crank and camshaft with TD pump HELP!

    Hi folks! My mate an ex engine rebuilder mechanic had the head off my TD maestro and said there's no timing marks on either crank pulley or cam shaft pulley? How can he time it back up?
    I said I thought he would have marked it with tippex but nevermind it's a big favour so...
    Any ideas? Cheers gus
    0-60 in 8.2 hours 1/4mile in time for breakfast but the rust wins hands down
    Tags: diesel, turbo
  • #2
    There are timing pin holes, camshaft one is under the screw on top of bearing at cambelt end (10mm head) & the flywheel one is below power steering bracket. The injector pump timing should be checked with a dial gauge, the mark on the sprocket will just get it somewhere near. This might be useful, the basic engine is the same, but pump timing varies according to spec (egr/non egr etc) https://nikimat.com/volvo_tmd_22_workshop_manual.pdf When putting the head back on I'd reccomend only using genuine Rover/Unipart/Perkins/Volvo head gasket, the pattern ones only seem to last a year or so...
    Last edited by Doctordiesel77; 22nd August 2022, 07:31.

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    • #3
      The rough setting for the injector pump is by using a long M6 screw, having got the crank and camshaft pegged, the M6 goes into a hole in the injector sprocket then
      further in it screws into a threaded hole in the injector pump body. This when all is ready for the belt to go on.
      Remove the M6 when the belt is on.
      Hopefully if things have not been changed the timing will be back as before. I am not an expert but I did change a timing belt once.
      Others with more experience may know much better than I do. It is unwise to turn the pump at all I think. Please correct me if I am wrong anybody.

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      • #4
        If the new belt is not the same or it is tensioned differently you could have trouble. this video is helpful
        https://youtu.be/uJMDECn90jU?t=758
        • 1 like

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        • #5
          Originally posted by robert1 View Post
          If the new belt is not the same or it is tensioned differently you could have trouble. this video is helpful
          https://youtu.be/uJMDECn90jU?t=758
          Good video, I've always had to adjust the pump timing whenever I've changed a belt & have always noticed an improvement in performance afterwards, presumably because either previous belt changers haven't seen the video/read the book, or the belts vary..

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          • #6
            yes, I have found the same, you can lock the pump but that would only keep the timing the same.
            • 1 like

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