Reply To: Noisy Gearbox

[Mike TebbettParticipant]

The problems continue.  The box came out again and went to Mark Harding (he did NOT do the initial rebuild) as I wanted a second opinion on the first rebuild. He found that the taper roller bearings that support the crown wheel had been excessively over pre-loaded (I believe they should not have any pre-load at all). This had essentially scrapped the bearings and there was evidence that the rollers were starting to break up…. this after very few miles !  Mark did not do any other work on the box apart from a visual inspection, check on tolerances, etc. etc.  We both thought this over pre-loading was the cause of the noise. The first man paid  me back Mark’s invoice with a small sum in some compensation thereby admitting they were at fault.  On replacement in the car the noise seemed to have gone, but now after very few miles a new noise has appeared also just on top gear.  The box has to come out again and quite honestly at present I just cannot face pulling the thing out again !!!  The box went to the man 12 months ago and I have had virtually 12 months of problems and worry and all this after spending quite a considerable sum of money.  I will not name the first man or his company here for possible legal issues, but if anyone is contemplating having a gearbox rebuilt professionally then they might like to make contact privately with me first……….