Ok so I'm in the process of fitting the new belt, on the belts they have yellow lines on so you know the dot on the camshaft wheel lines up with the dot on the back plate for some reason my line is always a tooth out even though the dots line up as I'll show in a pic

 

As you can see here the yellow line on the left cam wheel lines up but the one on the right is a tooth out but you can see the two white dots line up

 

And again here

 

Also can't seem to get the belt on the auto tensioner as its to tight for some reason

Please help as its now really winding me up

The marks on the sprockets/covers are for reference purposes only. If you are having trouble with getting the belt over the tensioner because its too tight, then you not doing it correctly, the belt should fit easily, without any tension issue.

Check this thread and you cant go wrong http://www.300zx.co.uk/forums/showthread.php?135139-Align-timing-belt

If the belts to tight, I think you forgot to compress the tensioner.

 

Paul

Ok so done it according to the link the left cam pulleys will be slightly out got the belt all on but the crank markings are still a tooth out for some reason really getting annoyed

 

Well that's another day of getting naff all done(now got to go n do someone else's car that they've managed to break) really starting to lose interest in the car,

Have you checked the old belt against the new one.

 

Paul

Yea checked it once started having problems really annoying this first cambelt ive ever got stuck with

Check Jeffs how to do a cambelt in the FAQ section, this should help you.

smithy

Yea that's the one linked at the top of the thread, got it all done but for some reason the crank is a tooth out

Is there anyone local to me that would come give me a hand to fit it next weekend? Please

Is there anyone local to me that would come give me a hand to fit it next weekend? Please

 

Not me personally but I have a plan!!!

Call!!!

Pete

If I understand Jeff's how to correctly,

It is more important that the belt lines up precisely with the sprockets, and the marks on the backplate can be a little off. They are there more for reference so as to get the initial orientation of the sprockets close ready for fitting the belt.

It appears that you may be able to line the belt and sprockets and allow the back plates to be slightly out.

Maybe once the tensioner is set, things will be more in sinc.

Yea I've lined the belt and sprockets up the right side line up with the back plate and the left side are a little out, now when it comes to the crank marking on Jeffs right up the cambelt line and dot and marking on oil pump all line up, but for some reason the mark on the cambelt on mine is a tooth out as I showed in the pic, can't work out why though

I have seen a vid on how to do this job.. and he too lined up the crank and right hand (as you face the engine) cams they explained (and showed) that the left hand cams move/settle when you take the belt off and so need a slight tweak when fitting the next belt.

 

It's a video I have seen on you tube and I have not attempted this job before personally.

I've done plenty of cambelts but for some reason just can't see where I'm going wrong lol

If you were to rotate the crank 1 tooth anticlockwise and the right hand cam sprocket 1 tooth anticlockwise, (as you look at it from the front) would that not put everything in the correct place?

Except for the back plate marking of course.

the right hand cam pulleys line up now, the pulleys on the left you line the belt lines up with the pulley notch thats means its slightly out by the backing plate which is right, then the crank lines should all line up but for some reason its not, its the crank lines that are stopping me from finishing it off

Ok do not despair your nearly there, your caution is a good thing but its clouding the issue, if the top four cambelt marks are lined up with the top four sprockets and the crank is correctly marked but is not matching the belt just pop the crank bolt back in and turn it to suit.

 

HOWEVER the bottom crank sprocket mark acuracy needs to be 100% and a close up of your crank shows a possible dot mark above your tipex mark, check this again, what your looking for is a little dimple,

 

Let us know how you get on

 

Jeff TT

 

 

Edited July 15, 201213 yr by JeffTT

Thanks for the advice jeff, I've cleaned the crank sprocket up and the marking was in the right place a little dimple near the tooth I'll post up a few pics of how it's timed up at the min but not yet tensioned

 

 

 

And the crank

 

How's this looking still looks slightly out to me or is it just my eyes lol??

 

Oh forgot I'm away this weekend for long weekend with the missus and little one so if anyone fancies having a look have to be the weekend after

Edited July 16, 201213 yr by 111mattin111

looks spot on to me .. long as the line on the belt for lower pully is on the dot ... u be fine

So you think just tension it up at that?

yep .. remember move it across but not to tight ... lock it ... then undo the locking bolt that u put in there ( remember to take it out once done ) u looking for about 5mm preload gap

Yep great stuff I'll tension it all up tomorrow after work cheers mate

Still looks out to me on the crank sprocket line to the oil housing mark. Is there any movement in the crank, you need a few mil clockwise, im not sure the tensioner will move it round enough.

 

- - - Updated - - -

Nope that pulling the crank round to take up the tension to the right of the crank so no more room, so if it's still just out where's it going wrong

Yes agree with Mark all it needs now is to tension the belt, again the crank mark on the oil pump is for reference only not actual setting, the crankshaft sprocket mark and the camshaft pulley marks are al that you need to concern yourself with.

 

Jeff TT