Timing (again)

[slighty_sykotic]

Ok,

I need someone that has timed an gze from a aw11.




That is what I can see on my car. Green is the tensioner for the cambelt, with the pointer in the middle of it. (blue cam belt).

Now, at TDC (screwdriver in the bore) one mark lines up exactly with the pointer from the tensioner.

The other mark doesnt line up with anything.


NOW:.

I put the cambelt on the basis that the mark was meant to line up with the pointer (and the camshaft marks of course). Installed the dizzy with a educated guess as to where the rotor should be. Cranked it over and it started, running bad of course, moved the dizzy around abit and it started to run great.

As it stands now, the car is ilding fine, and revs freely and easly (ie, timing sounds pretty close).

BUT!!

When I put the timing light on it the marks are no where NEAR the digits, in fact, you can hardly see them. According to the marks its like 100 degree out, which of course is bullshit, cause its running fine.

So, HELP!.

Whats the problem? There is a mark missing I guess, what I think I might do is line the mark to the pointer, and then draw a mark in white paint on the pulley at the zero mark. That ok?

Any help would be great,

Thanks,

--Sykotic

[sergei]

Usually the mark on the pulley should line up against the 0 on the cambelt cover, and usually there is only 1 mark on the pulley.
It looks like the harmonic balancer spun arround the rubber layer, thus shifting the position of the marks on the pulley.

[slighty_sykotic]

If the cambelt was out a tooth on the crank pulley, would it run like crap? Like, how bad would it run?

(wondering if I only used the screwdriver, its possibly that its a tooth off.)

And so by that theory I should just be able to line up the tdc and then paint a mark at 0?

And thanks.

--Sykotic

[sergei]

If the cam belt on crank side is one tooh out it will affect the performance, but idle will be more or less ok.
Why don't you use the dot on oil pump to align the cambelt? (dot is located about 2 o'clock relative to crank)
the dot should align to mark on the edge of crank cambelt sproket.
In fact I think it is more accurate way of setting the belt.
I had a cam belt done on black top, with mix and match sproket, to cut the long story, we had fitted cambelt 1 tooth out on exhaust cam (it was an AE82 black top conversion), the car ran fine, performance was ok (a bit sluggish but nothing bad). Only realised in couple of weeks, just because car had same performance as red top fx, and we started to look into causes why...

[AE91Sprinter]

do you have to jumper the ECU on that engine to test the timing?

[slighty_sykotic]

You do have to jumper two pins.

hmmmmmmm. I will do the paint mark on 0 timming, then see what happens.

--Sykotic