Still on with the gearbox and now in the process of re building . I ordered the bushings using the parts fiche off Dragonflys site .One of the bush's 15-4226 that arrived is bronze, in the casing its steel as in photograph (marked in Black) would it have had a bronze one originally and has the steel one been fitted later?
In the photograph marked in red , does this a cover push off? . I'm not sure what is the correct way to remove it and don't want to damage anything pushing the old bush out .
The bushings supporting the gear shift control shaft that you have identified were originally steel. They are not likely to wear beyond serviceability even after high milage; no need to disturb them unless truly needed.
I would be sure that they are in fact worn sufficiently to warrant removal rather than replacing them as a matter of course, (and the shaft itself should be checked for corresponding wear)
As John says the bushes were originally steel...Although they are not at all prone to wear in the bore the 'top hat' faces can wear, increasing the end float of the selector fork shaft..This should be minimal (a few thou.) and either bush replacement or shimming will be needed if wear is excessive...
I check all the gearbox shafts for end float individually before full assembly of the gearbox...It's then much easier to determine what's going on...Don't forget to fit an inner cover gasket when making checks. (the thin paper inner cover gaskets as used originally are the best...Thicker, gasket material pattern gaskets just lead to a requirement for a greater amount of shimming...Ian
Thanks for the advice , I'll leave the steel bush's alone .I am replacing all 3 shafts as I managed to get NOS ones. The shafts are showing signs of wear , the chrome finish in areas has worn off completely.
Like Ian says the gasket between the gearbox house and the side cover is very important. I had a thin one but when i closed the box, the shafts were almost stuck (…) so I used a bit thicker gasket. Problem solved.