Thin Belt Bottom Pulley question.

[phil Dean]

I have just started to fit the ali bottom pulley for the thin belt conversion,and I am concerned how close the bolt heads are to the timing cover. When I took the old s/metal one of the bolts were on the front of the pulley facing the engine with the nylocs on the back of the pulley. The manual shows them the other way round bolts facing forward but with the washers and nylocs facing the engine. The only difference I have made is to use the standard washers on the bolt end not the nyloc end because we are working with Ali and pressure under a certain point can cause it to crack by adding washers you spread the load. I haven't torqued the bolts up yet but they are spanner tight and I havent talked the dog bolt up yet.

Also the torque settings for the original pulley is 16-18 ibs ft is this still ok with an aluminium pulley.

You wouldn't believe I spent 3 hours yesterday trying to clean the front of the engine bay up. Before refitting

Anybody got any suggestions is this the way other people do it.

 

Edited October 12, 2023 by phil Dean

[Lebro]

I could be wrong, but the pulley looks too close to the front of the engine to me - the timing pointer, I think should not protrude as far over the pulley as yours seems too.  could there be a spacer missing ?

Bob

[Hamish]

Think I’d use shorter bolts And on my last engine I had the nuts on the back. 
 

edit

i think Bob is right. 
these are my 2 engines during the swap. Point is on the inner lip of the pulley only. 

Edited October 12, 2023 by Hamish
Pic

[Lebro]

Shorter bolts would not help ! maybe grind an angle on the bolt heads.

Bob

[phil Dean]

The old sheetmetal pulley came of in 2 parts and was obviously wider could I use the back part of that pulley as a spacer

[phil Dean]

I've now tightened the bolts up and taken from the top the pointer seams to have moved back. also picture taken from above probably helps. 

 

[BlueTR3A-5EKT]

Does the alloy pulley come with a TDC mark or do you need to set the engine and mark it yourself?

[phil Dean]

This is bolted on to the key way I didn't see a mark on the pulley. I know on the old one I took of it was just marked with white paint. I have now put the water pump pulley on and using a straight edge they both line up.

[Malbaby]

If the pulley alignment is Ok, you should be good....just the length of the bolts would annoy me.