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Timing Mark


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#1 paul1380

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Posted 16 April 2015 - 03:41 PM

Hello I am trying to time my engine A series bored to a 1380 running a 276 cam it was running with a belt set up but belt failed and throw my timing out fitting a van er timing chain. Know I am trying to reset the timing the timing mark on the timing case doesn't show 0 when the piston is at TDC is is ment to? Or is this only for setting the timing when the engine is running?

#2 Guess-Works.com

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Posted 16 April 2015 - 04:03 PM

before you put the timing case back on I assume you've set the cam timing correctly... which means you must already know where TDC is relative to the crank and cam...

 

With piston 1 at tdc the woodruff key on the crank should be pointing straight up ( 12 o'clock position )

 

The pulley which is used to time the ignition will have a dint in it which should line up with the timing marks on the timing chain cover.



#3 paul1380

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Posted 16 April 2015 - 06:10 PM

The engine is in bits at mo I have got the woodruff key on the crank at 12.00. But the cam sprocket doesn't line up with the markings on the case. So not sure if the cam is in thee right place I am confused.

#4 paul1380

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Posted 16 April 2015 - 06:12 PM

Sorry got that wrong the crank is at 12.00 but the marks don't line up with the casing marks?

#5 ACDodd

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Posted 16 April 2015 - 08:31 PM

That's usually beacuse the crAnk damper has failed and the outer rim has moved in relation to the centre. Fit a new pulley.

AC

#6 Guess-Works.com

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Posted 16 April 2015 - 08:35 PM

I think you're going to have to supply a picture as I'm not sure if you're on about cam timing or ignition timing...



#7 nicklouse

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Posted 16 April 2015 - 08:51 PM

I think you're going to have to supply a picture as I'm not sure if you're on about cam timing or ignition timing...


What I was thinking from the first post. As the timing cover does not come into anything till ignition timing.

#8 fenghuang

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Posted 16 April 2015 - 10:02 PM

 
The pulley which is used to time the ignition will have a dint in it which should line up with the timing marks on the timing chain cover.

The pulley which is used to time the ignition SHOULD have a dint in it, but I'll be ****** if I can find one on mine.

#9 Spider

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Posted 16 April 2015 - 10:45 PM

That's usually beacuse the crAnk damper has failed and the outer rim has moved in relation to the centre. Fit a new pulley.

AC

 

And if that's the case, bin the Harmonic Damper!

 

Fit a new one.

 

Busted crank otherwise.


Edited by Moke Spider, 16 April 2015 - 10:46 PM.





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