ValveBounce

A quick update, the workshop manager at Holden was very helpful and made several phone calls in relation to this, the summary of which is that Honda UK still don't acknowledge the problem. He is aware of the "anecdotal" problem only be doing his own research and although personally he doesn't deny it, nothing is forthcoming from Honda. Additionally Holden see very very few S2000's and they have little experience in dealing with them. I was quoted 15.8 hours to remove the engine to have a look, and then no guarantee Honda would entertain a claim IF the thrust washers are installed backwards.

However, Tom at TGM is mightily experienced with the S2000! He can quote chapter and verse from the maintenance manual and has had plenty of engines in pieces. He also took much time on the phone with me to run through my measurements and make suggestions how to remeasure eliminating likely errors. And this is where we are, re-measuring tomorrow,although I am confident it will be pretty much the same, unless I've goofed big time. If I come up again at 0.52-0.55mm as I expect it will be going to TGM for sump off, end float check using feeler gauges on the crank and if that still indicates a problem then lower block off to replace the thrust washers.

I just hope at 0.55mm end float the engine isn't already toast.

lower

Would give the car to Honda for assessment first. Exhaust that route first before putting you hand in your own pocket significantly. There is a well reported problem with the 07-08 engine and hopefully Honda uk will acknowledge that, particularly with the low miles on the engine. If they initially reject the claim, pursue it with senior Honda management. If it is an assembly defect, the fact the car is out of warranty is irrelevant.

Does it have a full Honda service history?

Liam701

You could take the car to Honda and pay them loads of money (probably more than you'd pay TGM to do the full replacement), to inspect it, for them to then say they can't see a problem with the installation or no fault found due to Honda etc etc, then you've got to pay them to put it right/back.

If I were you I'd bite the bullet and take it where you trust for inspection and if required repair.

The issue wasn't with 07-08 engines, it was some 08 and mainly the 09 engines.