09-03-2022, 07:32 PM
(This post was last modified: 09-03-2022, 09:00 PM by Bob Culver.)
In our ownership my RP spent its early and last serious use life in an alpine suburb of Wellington NZ. Approach from anywhere involved 1 1/2 miles in 3rd and 2nd.
On purchase in 1940 the diff was noisy and my father replaced the pinion bearing at 43,000. He was very fastidious and repeated at 75000. I changed the diff at 110,000 for a Girling type but sounded OK then. Modern bearings are made of vacuum degassed steel and have a much higher rating than 65 years ago. Incidentally, axles never replaced....or lapped...
As above one disadv of the ball race is that it is not easy to repeatedly withdraw the pinion to check mesh. Some apparently set up with the casings split and apparently is OK. But if an old reasonable bearing is available this can be relieved on both diameters and when setting established the new bearing fitted for final assembly.
On purchase in 1940 the diff was noisy and my father replaced the pinion bearing at 43,000. He was very fastidious and repeated at 75000. I changed the diff at 110,000 for a Girling type but sounded OK then. Modern bearings are made of vacuum degassed steel and have a much higher rating than 65 years ago. Incidentally, axles never replaced....or lapped...
As above one disadv of the ball race is that it is not easy to repeatedly withdraw the pinion to check mesh. Some apparently set up with the casings split and apparently is OK. But if an old reasonable bearing is available this can be relieved on both diameters and when setting established the new bearing fitted for final assembly.