All things considered with lexus, the tensioner does seem like the likely cause, And as someone with history working with (much simpler) engines, I had no problems agreeing with the lexus tech that this is a likely symptom, however I just hate the idea of chasing a problem around this engine not knowing whether it will be a problem again, also if bank 1 has this issue.. how long before bank 2 shows the same issue!
I spoke to Lee at srd this morning, And I realised that love this car and realistically the only thing I would chop it in for realistically is a gsf... and i think thay might give the mrs a brain aneurysm, so I think theres only one way forward really, engine swap it is for me! So I'm on the lookout for an engine, any help from you guys on this front would be much appreciated.... I've seen the ads for the scrapped vehicles and talked to them, the 2010 already has it's engine sold and the 2008 is certainly expensive so I've got to keep my mind open and hope that something will come up, If anyone knows of any engines collecting dust somewhere im happy to give it a loving home where it will be pampered!!
Honestly thanks for all your help so far and hopefully in advance for the help going forward
Andy