Need Hewland transaxle information/help
I am rebuilding my Mark 8/9 transaxle on my 1969 RP-2 Royale. I have done later Mark 9 units and I have the tools to do this work, but there are some differences that on the early unit that I need help with.
First, the carrier bearings are ball bearings. Not just the outer ones in the side cover plates, but the ones on the ring gear carrier itself. I know how to set the preload on tapered bearings with shims, but I cannot figure out what to do with ball bearings. I did not think there even was a preload for ball bearings.
Second problem is that the pinion depth for the pinion gear is too far into the case. I believe there is suppose to be some space between the end of the pinion gear and the Hewland tool that is used to measure pinion depth. My pinion gear is so far into the case that you cannot get the tool completely in. There is no clearance. Furthermore, there do not seem to be any shims at all under the pinion gear to remove to make some clearance. I believe the actual pinion gear clearance is usually marked on the pinion. it might be .018" for example. Well the number on my pinion is 2.236. I do not know what that is.
The transaxle I have has the old four bolt arrangement to hold in the pinion bearings. Also, the only number on the case I can find is 113.301.103. The number 46 and 46-1 also shows up in other parts of the case. These numbers are part of the casting and not stamped on. There are some curiously small numbers stamped inside the bell housing. They are 3 1 39. Needless to say, I would appreciate any information anyone has about this transaxle. Thanks, Paul
