Sorry, my extra one was the worn out unit I had refurbished. The dealer kept the previous one as proof for Morgan. Since then they will settle for pictures.
What's your mileage? Who cares. Is it practical? See #1. What happens when it rains? You get wet.
My rear sprocket teeth don't appear to be very worn (only 1400 miles on my 2014 M3W), but I am getting a lot of noise from my belt. Just manually moving the wheel generates a lot of noise. Any ideas to resolve?
Try loosening the belt tension. That sounds very tight. Morgan insists on a tight setting but I am more than convinced that this contributes to worn sprockets, bearings and seals. Again, the Super Max people keep repeating that as long as the belt doesn't ratchet, skip a tooth, it's fine.
What's your mileage? Who cares. Is it practical? See #1. What happens when it rains? You get wet.
Michael, thanks for the tip I decided to simply wash the rear sprocket and belt with water as suggested earlier in this thread and it made a huge difference. New video below. I'll see how long htis lasts.
I think your belt will run quieter when it is clean and wet, it probably will return to the normal noise very quickly if you have done nothing else, sorry to say. You can achieve the same by spraying silicone on it, for a short time. If your car has the NVH kit (post 2014), the belt tension should be fairly high as it is all rubber mounted and flexible, about 10mm deflection at the mid point. Much more than this and the belt will jump teeth on acceleration. If it is an earlier car with a solid mounted bevel gearbox it can be a bit slacker. Make sure you keep the rear wheel pointing straight in line with the chassis if you adjust the tension of the belt. Long term fix is a better rear pulley, i.e. not an alloy one.
When i had my rear alloy pulley swapped under warranty for a steel one due to wear ( which i assumed was the cause of belt noise) i was disappointed to find it made only a very slight improvement to noise levels.
i did use some dry lube ptfe sray on the belt which helped for a few miles but suspect the howling noise was in fact the bevel box as it got warm. It was a 2015 car so had all the mods, but unfortunately not a quiet bevel box.
2015 Morgan 4/4 (Wolf fettled) previously 2014 M3W MINI Cooper S and numerous BMC/BL relics.
I think your belt will run quieter when it is clean and wet, it probably will return to the normal noise very quickly if you have done nothing else, sorry to say. You can achieve the same by spraying silicone on it, for a short time. If your car has the NVH kit (post 2014), the belt tension should be fairly high as it is all rubber mounted and flexible, about 10mm deflection at the mid point. Much more than this and the belt will jump teeth on acceleration. If it is an earlier car with a solid mounted bevel gearbox it can be a bit slacker. Make sure you keep the rear wheel pointing straight in line with the chassis if you adjust the tension of the belt. Long term fix is a better rear pulley, i.e. not an alloy one.
My build date was 07/2014, which probably explains the reason for the high belt tension. Thank you for that bit of information. You are correct, the noise did return rather quickly. I took it out for a 15 mile drive today and it began making noise again at about 10 miles. It's definitely not as bad as it was before, though. I'll try the silicone next.
