With NO help at all from Morgan Motors, Aero Racing (neither returned emails or calls) and no help from Quaife, who did return emails but would not help, I was able to rebuild or should I say re-bearing my Bevel Drive Box. I can't believe how quite it is, I can now hear every rattle and creak in the body.
"Know the black and white before you walk in the gray"
Impressive stuff. Good quality bearings, correct clearances and preloads must make for a quiet bevel box, it can be done. You fitted the NVH kit your self as well?
I used Timken bearings and races to replace all the factory parts. I found that pinion bearings were way to loose with very little preload, the old bearings and races told the tail. Gear mesh was good so I used the old depth measurements. Also drilled and tapped the top of the box for a fill plug, filling the box on a bench you'll find that it holds more fluid than you think. I also installed the "update" for the box mount, next up is the Centa drive.
"Know the black and white before you walk in the gray"
What you write seems to suggest that either there is nothing fundamentally wrong with the box but they are built to a price and as a result the bearings don't last or the lack if a cush drive between wheel and sprocket causes load reversals in the bevel box that shorten bearing life.
Time will tell. If your box fails again then my cush drive theory is supported, if it doesn't then I'm probably wrong.
Peter, 66, 2016 Porsche Boxster S No longer driving Tarka, the 2014 Plus 8...
Very impressive engineering! As this problem must be a major issue for MMC you would think (hope) they would engage with you and discover how you have resolved the issue. Sales over customer service yet again, how sad. There must be potential for you to set up a repair service, I think you would have rather a lot of customers ;-).
With NO help at all from Morgan Motors, Aero Racing (neither returned emails or calls) and no help from Quaife, who did return emails but would not help, I was able to rebuild or should I say re-bearing my Bevel Drive Box.
Great work! Now you can really enjoy your car.
I love the M3W, but why should I buy one from a company with such awful support ???
Any chance you could share the Timken part numbers?
Seconded. I've rebuilt a two speeder bevel box, but I had the advantage that when it was done, it wasn't far to go to get an expert opinion to check all was assembled correctly and with the right play.
Take my hat off to you, and fingers crossed the real issue was just poor quality control with the original assembly.
Now you can really enjoy your car.
