mi16 head noise / rebuild
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  1. #1
    Tadpole
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    Default mi16 head noise / rebuild

    I have just started to hear a rattle in the top end of my 1.9 mi16.

    It is most noticeable at idle, but it is not constant, it sounds fine for 10 seconds then a quick click / rattle then fine again for a bit.

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    Any ideas what it could be?

    I have been wanting to get the head rebuilt and perhaps some reground (peter t) cams anyway, where should I go in Adelaide?

    Also, can I get the compression up to 10.5:1 by skimming the head?

    Thoughts / suggestions?

  2. #2
    1000+ Posts Dave's Avatar
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    It will just be gummed up hydralic lifters. What sort of oil are you using and how long since a change.

    If you want to take the cams out you can strip them righ tdown and clean them and put them back together again.

    I might have some pics somewhere - they were on here before the crash.

    Dave


  3. #3
    1000+ Posts cam85's Avatar
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    Yea sounds like a lifter. As above, a good clean out will do them good. Skimming is probably not the best way to achieve the compression. Fitting a nice thin copper head gasket can get the comp a bit higher. That added with a very fine skim to clean the head will probably see close to 10s.

    Cam
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  4. #4
    Tadpole
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    Thanks for the info, good to know it is not too major.

    The oil is about 5000km old and it was gtx3.

    Some pics would be sweet. Thx Dave.

    Cam, I have read copper gaskets are not good as far as corrosion goes. Is the only other option for compression swapping the pistons?

    I might look for another head to build up to minimise down time.

  5. #5
    Fellow Frogger! DjB8V's Avatar
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    that's correct about the copper gasket. have a look at the Taylor Engineering website. it goes through in great detail how up an mi16's c/r.



    Chris

  6. #6
    1000+ Posts Dave's Avatar
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    Yeah the safest way to up the compression is with aftermarket pistons wiseco for example. The other way is to deck the liners and block but you will need to get a machine shop to do that Peter or Owen W are the ones to talk to. If decking you will need offset cam keys also which peter can supply.

    Dave


  7. #7
    Tadpole
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    Well, it appears terminal.

    I was just about to cross some train tracks, in peak hour traffic, when I heard a constant whir, then smoke, then a very loud rattle from the engine.

    Anyone got a low Km 1.9 for sale?

  8. #8
    Fellow Frogger! DjB8V's Avatar
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    You could see about getting a engine rebuld if the rest of the car is tight.


    Chris

  9. #9
    Fellow Frogger! rtsnoz's Avatar
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    Mine is making a similar noise at the moment. Assuming it is the lifters - do I just leave it and it'll sort itself out? Could be a little silicone or something from my recent rocker cover sealing...

  10. #10
    Tadpole
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    Yeah, I reckon I will look around for a motor to swap first. It may have done some pretty bad damage inside.

    I just spent a heap getting the suspension sorted...So I would prefer not to scrap it.

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