Yes! I was referring to the scoring on the A and B clutch hubs. Now I see what you saying as it does look like they were cleaned up with a dremel bit of some sort. When I checked the spools some did show some finish delamination like your photos above. When I first did the valve body disassembly is when I noticed the wear but I didn't replace them because I wasn't actually overhauling it. Since I'm now at the teardown /rebuild stages, It may be wise to do such. The B clutch shows pitted marks and fine metal particles scracthes from the steels and friction disk overheating and/or wearing. Do you have a photo of a the inside of an unworn overheated B clutch to reference mine? I'm considering replacing with a used one. Thanks.When I re-manufacture these transmissions I find that the colour of the plastic breather provides a good indication of how hot the fluid has reached in the transmission.
In your case, it was obviously extremely hot! It would be worth checking the condition of the spool valves in the valve body assembly in case the very high temperatures have caused the hard anodised finish on them to delaminate.
I’m not completely certain what you mean by your reference to scoring. The pictures you have taken of the A and B clutch hubs show the area where the two clutch hubs are EB welded to their respective shafts. There is often weld spatter on these components as a result and this is sometimes roughly ground off with hand tools at the factory. Could this be what the ‘scoring’ marks are? There are no rotating components in close enough proximity to these welds which could touch and cause scoring marks.
Hello Phil. Pm sent! Thanks in advanceYes, that's fine. Just send me a PM with your email address and I'm sure that we can sort it out. You'll just need to decide if you want the little button cap or the breather tube (which costs £17.50), unless you still have the old one?