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  1. #1
    Member Woznaldo's Avatar
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    Ignition Timing Marks

    Guys and girls,

    I'm having a bit of a brain fart and can't remember if the C1J has any ignition timing marks for use with a strobe timing light? I'm thinking no?

    Woz

  2. #2
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    Re: Ignition Timing Marks

    Quote Originally Posted by Woznaldo View Post
    Guys and girls,

    I'm having a bit of a brain fart and can't remember if the C1J has any ignition timing marks for use with a strobe timing light? I'm thinking no?

    Woz

    Your thinking is wrong

    If you look on the G/B there's a hole with the numbers and lines on, nearest front of car, just past the tdc sensor whole.

  3. #3
    East Midlands Regional Rep Os8472's Avatar
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    Re: Ignition Timing Marks

    Quote Originally Posted by Dave Reed View Post
    Your thinking is wrong

    If you look on the G/B there's a hole with the numbers and lines on, nearest front of car, just past the tdc sensor whole.
    but set the engine to tdc and double check the marks as there not always spot on accurate

  4. #4
    Non-member TNT ANDY's Avatar
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    Re: Ignition Timing Marks

    Quote Originally Posted by Dave Reed View Post
    Your thinking is wrong

    If you look on the G/B there's a hole with the numbers and lines on, nearest front of car, just past the tdc sensor whole.
    I sencond that motion!

  5. #5
    Member Woznaldo's Avatar
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    Re: Ignition Timing Marks

    Thanks guys. I didn't have access to a manual and just couldn't remember.

    I'll have to get myself a timing light now. I need one that can deal with wasted spark, any ideas?

  6. #6
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    Re: Ignition Timing Marks

    Quote Originally Posted by Woznaldo View Post
    Thanks guys. I didn't have access to a manual and just couldn't remember.

    I'll have to get myself a timing light now. I need one that can deal with wasted spark, any ideas?
    Any timing light will do wasted spark, just clip it on 1 or 4. it'll strobe twice as often but you'll still see the timing mark.

    As you look at the bellhousing stood at the gearbox side of engine bay the 0° mark is the 2nd from the left.

  7. #7
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    Re: Ignition Timing Marks

    Quote Originally Posted by Os8472 View Post
    but set the engine to tdc and double check the marks as there not always spot on accurate
    How can it be wrong? The flywheel only bolts on in one position?

  8. #8
    Non-member Matt@CodeRedMotorsports's Avatar
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    Re: Ignition Timing Marks

    Mass production means discrepancies. Can be a few degrees out.

  9. #9
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    Re: Ignition Timing Marks

    Quote Originally Posted by Matt@CodeRedMotorsports View Post
    Mass production means discrepancies. Can be a few degrees out.
    I'm surprised, even with mass production there are still manufacturing tolerances applied.

  10. #10
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    Re: Ignition Timing Marks

    Quote Originally Posted by Matt@CodeRedMotorsports View Post
    Mass production means discrepancies. Can be a few degrees out.
    I've never known it to be honest.

  11. #11
    Non-member Matt@CodeRedMotorsports's Avatar
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    Re: Ignition Timing Marks

    Lucky you, I have.

  12. #12
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    Re: Ignition Timing Marks

    Quote Originally Posted by Matt@CodeRedMotorsports View Post
    Lucky you, I have.
    Really ? Are you saying the mark on the flywheel doesn't line up at real TDC ? I've dti and strobed loads of C and F engines in the course of calibrating ECUs and building motors, never once seen one as much as a degree out. I can't imagine where the error could come from.

  13. #13
    Non-member Matt@CodeRedMotorsports's Avatar
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    Re: Ignition Timing Marks

    Yes, mine was over a degree out on the red c1j engined race car.
    In the workshop at the moment I have a Rover Coupe race car, thats miles out.
    My fiat was the worst one, luckily it was a non damaging engine.
    I used to use a tdc stop made out of an old spark plug to get true tdc, on the c1j but i don't need to tell you how to suck eggs Chris.

  14. #14
    Non-member Mart's Avatar
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    Re: Ignition Timing Marks

    Quote Originally Posted by Scoff View Post
    I can't imagine where the error could come from.
    Sloppy flywheel bolt-holes - I'm sure Cooke had such an example once before?

  15. #15
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    Re: Ignition Timing Marks

    Sorry matt, I thought you were only talking about Renaults as I think Oli was.

    Mart, yes good point, maybe a degree or more in that if they're very bad.

  16. #16
    Motech Tony Walker's Avatar
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    Re: Ignition Timing Marks

    is 1 degree that critical?

  17. #17
    Non-member Matt@CodeRedMotorsports's Avatar
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    Re: Ignition Timing Marks

    Quote Originally Posted by Scoff View Post
    Sorry matt, I thought you were only talking about Renaults as I think Oli was.

    Mart, yes good point, maybe a degree or more in that if they're very bad.
    No worries Chris, I'm sure we are all on the same side....

    Tony, every little helps mate, that's what I've been telling my other half
    Tbh, it's probably not too critical though on an old nail engine like a c1j, but its buggering up the motec in the rover race car at the moment....phucking thing!

  18. #18
    Motech Tony Walker's Avatar
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    Re: Ignition Timing Marks

    Quote Originally Posted by Matt@CodeRedMotorsports View Post
    No worries Chris, I'm sure we are all on the same side....

    Tony, every little helps mate, that's what I've been telling my other half
    Tbh, it's probably not too critical though on an old nail engine like a c1j, but its buggering up the motec in the rover race car at the moment....phucking thing!

  19. #19
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    Re: Ignition Timing Marks

    Rovers have some funny timing patterns !

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