andyb64

Hi, I'm in the process of changing the cambelt on a 2wd YB engine. I set all the timing marks as per various threads on here ( couldn't set the dizzy as engine came without one ). However when I released the tensioner pulley and removed the belt both the cam pulleys shifted out of alignment. They are both now about 1 tooth above the level of the head. Is this normal as when I turn the pulley to the correct position it seems to be opening valves on number 3 cylinder. Do I just turn them into the correct position and hold them there while I fit the new belt ?



Thanks in advance for any assistance

Andy...

botters

iTrader: (2)

yes just turn them till they are pointing at each other, they dont always point 100% at each other due to machining tolerances but so long as they are close enough for the belt to locate across the teeth properly it will be fine, just make sure you turn the engine over twice by the crankshaft pulley after fitting to make sure nothing is making contact and you will be fine to start it

Cossie Sean

and then re-check ALL the timing marks are still aligned, this is crucial.

making sure all the bolts are torqued properly

andyb64

So the fact that the pulley won't stay in the correct position unless I hold it in place with a spanner while I fit the belt doesn't matter ?

manoj

iTrader: (4)

This should help mate.
Make sure Piston No.1 is at its highest point @ TDC first, then follow the diagram.

thanks,
Manoj

andyb64

The problem is I can't get the pulleys to stay in those positions without holding them there with a spanner while I fit the belt. Is it normal for this to be the case or are my cams in the wrong position in relation to TDC ?

grcossie

Thats no problem, use a spanner and fit the belt. Turn crank twice and check timing.

andyb64

Thanks everyone for all the advice, took a couple of attempts to get it right but new belt fitted and everything lines up nicely, thanks again

Andy...

gi2490

nice. needed this