cambelt query

[Bob]

hi guys
i hope someone can help me, i have recently bought a volvo 740 estate with a d24tic engine. (it had a swap from the later variant so the mk2). i got it running and decided to do the cambelt as it had been off the road for 12 years. anyway after 3 months trying to source one and too many missing parcels later i bought it in parts. i got gates belts, febi idler, qh tensioner, FAI water pump. anyway here's the problem. im getting it done ive got it timed up and locked the crank to 600nm (as i don't have the crank extension too) but i noticed that the idler pulley doesn't sit quite square in the hole, in other words the hole isn't center of the idler causing it to pull sideways when tight and to add to this the threads seem to be stripped but there are a few at the back so i can get it tight enough. i have managed to square it up as much as i can by removing a burr from where the old idler was mounted, it looks as if the old one has heated up and possibly span causing the surface to wear unevenly. now the other concern the belt rides off the water pump slightly by a couple of mm which is an improvent from when i first mounted the idler. this happens slowly if i rotate the engine 10 revs or so. everything seems relatively true now as per pictures but im not sure if this overhang of the belt is acceptable. perhaps the water pump isnt quite correct or the idler mounting is causing issues. in addition what do you suggest i seal the idler bolt with. ptfe, loctite thread lock or a loctite thread sealant. i just dont want to do anything silly so i thought id get in touch with the specialists who may know better[IMG]https://ibb.co/khTbC36
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