25-02-2019, 09:57 PM
"when you've managed to de-growl the back axle, ill send TH4219 back your way for the same treatment!."
I would have hoped, Hedd, that the axle on TH 4219 would have been rebuilt by now. If not, it's been growling for 50 years!
FG's back axle is quiet when spun up with no load so I presume that the bearings are in good order, but there is a lot of backlash between the pinion and crownwheel and it has a darker growl on driving and a lighter one on the overrun. I have costed all the bits including one of David Cochrane's crownwheel and pinion sets and the bill will be about £800.00 so I'm going to have to do some serious saving up! However, if what I have surmised about TH 4219's axle is true, then it's not exactly urgent.
I would quite like to meet TH 4219 again. if you are agreeable, Hedd, perhaps you would like to give me a ring sometime: 01678 520284.
Bob, I note what you say, but since the bearing came off the crank with virtually no effort and went back on with only a couple of light taps, I can't see how it got damaged during dismantling. I can't see the inner track without digging the rollers out and there is no discernible rock in the bearing itself. But it was dreadfully noisy in the motor. I thought it had collapsed! The new bearing is much quieter although it has only done about 20 miles so far. I have to go to Llanfyllin on Wednesday evening which is about 25 miles distant from Bala over the mountains. This involves plenty of second and third gear work, so should give the new bearing a good test.
As I said in my previous post, I think is has become brinelled. when you rotate it, it feels sometim.es smooth and other times rather rough.It is clearly (as we say in Wales) 'wedi gorffen' (FUBARed) and is now in the scrap bucket.
Again, as I have said in a previous post, I am going to have to press the FG into service as my 'daily' whilst the Polo receives some much needed TLC so I shall report back on how it behaves. If the uncaged rear main continues to be satisfactory in service, this may reassure others.
Once again, thanks to everyone who has contributed to this thread. It has been most educational!
I would have hoped, Hedd, that the axle on TH 4219 would have been rebuilt by now. If not, it's been growling for 50 years!
FG's back axle is quiet when spun up with no load so I presume that the bearings are in good order, but there is a lot of backlash between the pinion and crownwheel and it has a darker growl on driving and a lighter one on the overrun. I have costed all the bits including one of David Cochrane's crownwheel and pinion sets and the bill will be about £800.00 so I'm going to have to do some serious saving up! However, if what I have surmised about TH 4219's axle is true, then it's not exactly urgent.
I would quite like to meet TH 4219 again. if you are agreeable, Hedd, perhaps you would like to give me a ring sometime: 01678 520284.
Bob, I note what you say, but since the bearing came off the crank with virtually no effort and went back on with only a couple of light taps, I can't see how it got damaged during dismantling. I can't see the inner track without digging the rollers out and there is no discernible rock in the bearing itself. But it was dreadfully noisy in the motor. I thought it had collapsed! The new bearing is much quieter although it has only done about 20 miles so far. I have to go to Llanfyllin on Wednesday evening which is about 25 miles distant from Bala over the mountains. This involves plenty of second and third gear work, so should give the new bearing a good test.
As I said in my previous post, I think is has become brinelled. when you rotate it, it feels sometim.es smooth and other times rather rough.It is clearly (as we say in Wales) 'wedi gorffen' (FUBARed) and is now in the scrap bucket.
Again, as I have said in a previous post, I am going to have to press the FG into service as my 'daily' whilst the Polo receives some much needed TLC so I shall report back on how it behaves. If the uncaged rear main continues to be satisfactory in service, this may reassure others.
Once again, thanks to everyone who has contributed to this thread. It has been most educational!