HELP!! BNR32 Timing belt allignment question

[Robbo]

Hey,

Just changed the timing belt on my 32, and the process for setting the belt tensioner specifies turning the engine over twice before setting the position of the tensioner.

I did this and then cranked the engine over (on the starter motor, no spark), to see if it was all good. and the belt worked its way forward.

[Edit: by about a millimeter or so.. til the belt was slightly off the pulley.]

Is this a problem? I figure that the belt won't come off thanks to the pulley guide plates (large tapered washers) but it will wear the front of the belt..

What would cause this and what can I do to remedy it? The only thing I can pick is that the idler and tensioner pulleys sit at different heights. It's hard to explain but the distance between the block and the pulleys is different between the two. (i.e. the idler is closer to the block than the tensioner).

Help me please!!! I want to get this car back together. and I dont know what to do.. :confused:

Cheers.

Robbo.

[Godzilla32]

Hey,

Just changed the timing belt on my 32, and the process for setting the belt tensioner specifies turning the engine over twice before setting the position of the tensioner.  

I did this and then cranked the engine over (on the starter motor, no spark), to see if it was all good. and the belt worked its way forward.  

[Edit: by about a millimeter or so.. til the belt was slightly off the pulley.]

Is this a problem?  I figure that the belt won't come off thanks to the pulley guide plates (large tapered washers) but it will wear the front of the belt..

What would cause this and what can I do to remedy it?  The only thing I can pick is that the idler and tensioner pulleys sit at different heights.  It's hard to explain but the distance between the block and the pulleys is different between the two. (i.e. the idler is closer to the block than the tensioner).

Help me please!!! I want to get this car back together. and I dont know what to do.. :confused:  

Cheers.

Robbo.

Hmm mine is in pieces too buddy i havent yet replaced it with a new belt so im not sure if i'll have the same issue..Best to ask one of the guys like wrxhoon or GTRgeoff. They have helped me out alot and know there stuff..Perhaps PM one of them?

[Robbo]

I've sorted it now.

Cheers.

[Godzilla32]

Mine is doing this now...How did you fix yours?

[GTRgeoff]

Deren, sorry I was thinking of something else when I replied to the message. Just press it back on the drive gear and fit the guide plate and balancer. It won't wear too fast.

[Godzilla32]

Ok thanks for the advice mate. I'll go do that now..

[Godzilla32]

The whole belt seems to be working its way forawrd, not just on the crank pulley. The whole way around it seems to be moving forward... Im not keen on putting it back together with it doing this. Any help would be great

[GTRgeoff]

Deren, this is why it needs the guide at the bottom. Consider that there has to be some minor flex at the free ends of the shafts for all the gears/pulleys when the belt is under tension. It will naturally produce runoff on the free end direction. Put the guide and balancer on and all will be good.

[Godzilla32]

Ok thanks Geoff, makes sense. One less thing to worry about :-P