Thread: Tensioner snapping off the mount TDV6

Originally Posted by Graeme

I don't subscribe to the persistence of a software/design fault theory. I expect that between the fault codes and a thorough inspection that the cause will be identified for which I assume the fix will be covered by the warranty on the installation job.

You may very well be right, but the issue only comes up when towing under load - when not towing i can drive my car as hard as I like and no issues crop up but as soon as the camper is attached they crop up but the foot has to be flat to the floor - answer is not to put the foot to the floor when going up hill or overtaking.

The other interesting aspect that denies logic is that no codes are recorded. I have specifically tested this by clearing all codes then specifically putting the car into a limp mode situation and then reading the codes - nothing there.

This problem has been reported on AULRO and was the subject of extensive discussion a couple of years back. It has also been reported on the UK sites and by UK residents on the US site.

There doesn't appear to be a physical fault in the cars or it would also crop up in no towing, high load situations but it doesnt seem too. While the issue has been recognised, no solution has been identified, other than ideas such as your views and my views have not been tested.

cheers

Garry

Originally Posted by Htperth

Hi all, my tensioner bolt snapped right off while driving. This is within less than a year of changing the timing belt and kit including tensioner. Mechanic says he didn't over-tighten and used correct torque wrench settings. He has applied for a claim through the parts supplier. The UK supplier asked to have the tensioner and bolt sent to the UK for metallurgical testing on the bolt. Insurance won’t cover this so am hoping the UK supplier will! Really gutted as it’s my daily and I use it for work. Thinking of legal course of action but jurisdiction may be overseas. Any tips?

Are you able to get the bolt out and check the threads for any thread lubricant? I'm fairly certain the torque spec is for dry bolts. If the mechanic used the correct torque value, but used a lubricant on the threads, then the load in the bolt could have been up to 30% higher than when dry. Worth checking imho