I have sourced following OEM parts from bestbuyaustralia.com at $150
Timing belt TB138
Timing belt tensioner bearing 1350574011A
Timing belt Idler roller bearing 1350363011A
Front crankshaft seal 9008031022
Front camshaft seal 9031138046A
Water pump & gaskets
I had professional mobile mechanic fitted these parts at a cost of $450 after 2 months the car would not start. My wife called NRMA thinking it would be soothing simple. They put it down to Timing Belt. Called the mobile mechanic back and asked him to check it out. Sure enough timing belt was of the mark by 3 or 4 teeth.
The issue I have is that the mechanic is blaming the belt as he has done everything by the book and the supplier is saying it’s possible that the mechanic did not have enough tension on the tensioner.
Could anyone advise if it could be the belt? I did read somewhere that timing belts do not stretch.