Author Topic: help with timing marks, mine are out or am I wrong  (Read 6755 times)

Offline geedubyagraham

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help with timing marks, mine are out or am I wrong
« on: 26 February 2014, 11:43 »
Ok ill try and explain this as best as I can, ive got an golf mk2 8v gti and was following rubjohnnys tuning guide, my question is the punch mark on the cam pully is that supposed to line up with the front or back of rocker cover (mine lines at back when tdc) and therefore everything else is out ie dizzy and flywheel marks. Also when ive looked at the dizzy cap and rotar they are badly pitted.
Car runs but is a bit sluggish. Any help appreciated

Offline Santiago

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Re: help with timing marks, mine are out or am I wrong
« Reply #1 on: 26 February 2014, 14:06 »
I guess that you have No.1 piston at TDC on the exhaust stroke, rather than the compression stroke. Turn the crank another 360° and see if that makes everything better.

Offline weazgti

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Re: help with timing marks, mine are out or am I wrong
« Reply #2 on: 26 February 2014, 14:38 »


Did you use these ones as well?

Offline Sgt_Lemon

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Re: help with timing marks, mine are out or am I wrong
« Reply #3 on: 26 February 2014, 16:35 »
as the picture above you will have those marks that line up to the top of the cambelt cover. however you also have a mark on a tooth on the inside edge of the wheel which should line up to the rocker cover. for the crank i would ignore everything on the crank pulley and only look at the flywheel markings.
i also found in my that my intermediate sprocket marking was well out and had to be ignored.

Offline geedubyagraham

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Re: help with timing marks, mine are out or am I wrong
« Reply #4 on: 26 February 2014, 16:53 »
Yes I have those markings but im confused as to weather the inside mark on cam wheel should line up at the front or rear of the rocker? Ill try turning 360 degrees again tomorrow as im not sure if it was on compression or exhaust stroke.
Thanks for the replys so far

Offline Santiago

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Re: help with timing marks, mine are out or am I wrong
« Reply #5 on: 26 February 2014, 16:59 »
Front.  Which is half a cam rev from where you are, which is one crank rev.

Offline geedubyagraham

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Re: help with timing marks, mine are out or am I wrong
« Reply #6 on: 26 February 2014, 17:11 »
Ok so tomorrow ill turn it to front and report my findings thanks again

Offline Sgt_Lemon

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Re: help with timing marks, mine are out or am I wrong
« Reply #7 on: 26 February 2014, 17:27 »
if you didnt know for every 360 degree on the crank its only 180 on the cam. so if you did 360 on the crank then the cam position should line jup with the front. once you have this then go and look at the flywheel marking to see if it has lined up also.

Offline geedubyagraham

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Re: help with timing marks, mine are out or am I wrong
« Reply #8 on: 26 February 2014, 17:59 »
Yeah I get it now thanks im being durrrr :tongue: today. Thanks

Offline geedubyagraham

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Re: help with timing marks, mine are out or am I wrong
« Reply #9 on: 26 February 2014, 19:58 »
Also the cam belt sits right on the outer edge of the cam wheel? Doest look right to me as if it might work its way off, I thought it would be in the centre?