[Lorenzo]

I am about to replace the layshaft (bronze) bushes in a 4-spd. box.
Anyone have thoughts or sage advice about orientation of the lubrication groove ?
(The drive side bush in this particular box had the groove at approx. 9.30 clockwise, and has suffered significant wear diametrically opposite.)

[AzCal Retred]

I'd put them at the bottom myself. I run oil, it should ooze up in there and circulate just fine.

[stinkwheel]

If the originals are iron, just be aware it's not a foregone conclusion that the old ones will come out willingly!

I even made a puller for the kickstart shaft one using a large rowlbolt screwed into the bushing and a piece of steel tube as a spacer to try to wind it out. Even with a load of heat it refused. I landed up drilling down the centre with a blacksmiths drill then breaking the remaining shell out into the middle with a cold chisel. Then the new bushing contracted so much after fitting that the shaft wouldn't fit and I had to make up a sort of flap wheel with emery cloth in a slotted tube to hone the ID slightly.

Took me almost all day.