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Thread: Ignition timing?

  1. #1
    Guest jackmcinally's Avatar
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    Ignition timing?

    Hey guys, just recently finished fixing the headgasket on my CA. I'm trying to set the ignition timing right now, but it seems weird to me that I have to turn the CAS all the way anti-clockwise to get the timing light to show 15

    Is this normal? Or does anyone have an idea of why it would be doing that?

    Cheers

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  2. #2
    Dorset & Hants Rep pointz's Avatar
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    Quote Originally Posted by jackmcinally View Post
    Hey guys, just recently finished fixing the headgasket on my CA. I'm trying to set the ignition timing right now, but it seems weird to me that I have to turn the CAS all the way anti-clockwise to get the timing light to show 15

    Is this normal? Or does anyone have an idea of why it would be doing that?

    Cheers

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    Belt is a tooth out
    Worn keyway or woodruff key on crank
    Worn cas or exhaust cam
    Faulty cas

    That's the main issues to cause it mate i am going on being a tooth out!

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  3. #3
    Guest Desa's Avatar
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    CAS worn out
    CAS spline on exhaust camshaft worn out



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    Member arry's Avatar
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    As above, plus make sure you've got the top cover correctly located on its dowels.

    In all honestly though, it's probably the cam splines worn out - take the cas off and take a picture of them.
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    Dorset & Hants Rep pointz's Avatar
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    Quote Originally Posted by arry View Post
    As above, plus make sure you've got the top cover correctly located on its dowels.

    In all honestly though, it's probably the cam splines worn out - take the cas off and take a picture of them.
    I sold him a good exhaust cam so isn't the cam but i would definitely be looking at the cas! Even think i advised that both need replacing?

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  6. #6
    Guest jackmcinally's Avatar
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    I don't think it's a tooth out, cause I just put the belt on about a week ago and I counted it a whole bunch of times to make 100% sure it was on right. I guess I'll have to check again if nothing else fixes it

    As for the CAS and Exhaust Cam, I had this same problem on this engine before it was pulled apart for the headgasket, and I bought a replacement exhaust cam from Pointz which I've just put in. I'll grab a picture of the CAS tomorrow, but I was told last time that it didn't look too bad (if I remember correctly)

    What is a keyway / woodruff key on crank?

  7. #7
    Guest jackmcinally's Avatar
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    ah, I thought you said the CAS looked ok I'll take another pic tomorrow and see if that looks bad

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    Member arry's Avatar
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    Quote Originally Posted by jackmcinally View Post
    I don't think it's a tooth out, cause I just put the belt on about a week ago and I counted it a whole bunch of times to make 100% sure it was on right. I guess I'll have to check again if nothing else fixes it

    As for the CAS and Exhaust Cam, I had this same problem on this engine before it was pulled apart for the headgasket, and I bought a replacement exhaust cam from Pointz which I've just put in. I'll grab a picture of the CAS tomorrow, but I was told last time that it didn't look too bad (if I remember correctly)

    What is a keyway / woodruff key on crank?
    When you took the crank pulley off, you'd have seen the locating woodruff key in the crank nose. Did you notice any wear on it?
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    Guest jackmcinally's Avatar
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    ah right, nah I didn't notice anything wrong with it.

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    Guest jackmcinally's Avatar
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    If it turns out I'm needing a CAS, does anyone have one to sell? I can't find one on eBay or anything

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    Dorset & Hants Rep pointz's Avatar
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    Quote Originally Posted by jackmcinally View Post
    If it turns out I'm needing a CAS, does anyone have one to sell? I can't find one on eBay or anything
    I possibly do will have to check though

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  12. #12
    Guest jackmcinally's Avatar
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    Cool, cheers!

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  13. #13
    Guest jackmcinally's Avatar
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    Right, here's the CAS



    And here's the cam for good measure




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    id say your CAS and cam look fine.

    put some copper slip on the splines when you refit it.

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    Do you have any kind of vacuum leaks? That would throw the idle out which in turn will effect timing.

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    Dorset & Hants Rep pointz's Avatar
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    As green rs says they look fine (cas is slightly worn but not to the extent to put timing off)

    May be worth just checking the keyway to rule it out, anyone local to you got a cas you could try?
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  17. #17
    Guest jackmcinally's Avatar
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    I didn't notice any vacuum leaks, but I'll check that later! yeah I'm gonna check the belt and keyway later today or tomorrow, I just need to find a puller tool to get the crank pulley back off

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  18. #18
    Guest jackmcinally's Avatar
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    And nah, I don't know anyone else with an S13 around here

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  19. #19
    Dorset & Hants Rep pointz's Avatar
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    Just remove the aux belt pulley mate if the keyway is damaged it should be pretty obvious!

    Make sure its sitting square and has no movement side - side

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  20. #20
    Dorset & Hants Rep pointz's Avatar
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    Quote Originally Posted by jackmcinally View Post
    And nah, I don't know anyone else with an S13 around here

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    Put up a post in your local section!

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