Ignition Timing Marks

[Woznaldo]

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

[Dave Reed]

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 :D

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.

[Os8472]

Your thinking is wrong :D

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.

:agree: but set the engine to tdc and double check the marks as there not always spot on accurate

[TNT ANDY]

Your thinking is wrong :D

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!

[Woznaldo]

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?

[Scoff]

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.

[Ashy]

:agree: 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?

[Matt@CodeRedMotorsports]

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

[Ashy]

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

I'm surprised, even with mass production there are still manufacturing tolerances applied.

[Scoff]

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

I've never known it to be honest.

[Matt@CodeRedMotorsports]

Lucky you, I have.:laugh:

[Scoff]

Lucky you, I have.:laugh:

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.

[Matt@CodeRedMotorsports]

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.

[Mart]

I can't imagine where the error could come from.

Sloppy flywheel bolt-holes - I'm sure Cooke had such an example once before?

[Scoff]

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.

[Tony Walker]

is 1 degree that critical?

[Matt@CodeRedMotorsports]

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....:smokin:

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!

[Tony Walker]

No worries Chris, I'm sure we are all on the same side....:smokin:

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!

:D:agree:

[Scoff]

Rovers have some funny timing patterns !