61
Ace, Aceca & Greyhound Forum / Re: Gearbox help
« on: October 06, 2021, 20:30:56 »
My Bristol gearbox is run on 20W50, the Ace hand book specifies a 30 SAE. I also run my Sprite gearbox on 20W50. I only run EP90 in the differentials.
I tried to find the Moss gearbox spec with a quick search but could only find oils sold for Moss boxes, these were a 30 and 50 weight.
Possibly your EP90 is lubricating the synchro cones too well and the speeds are not being matched. The bigger crunch from the 3-2 shift may simply be the speed ratio difference is greater than the 4-3 shift.
Good luck, let us know how it goes.
I tried to find the Moss gearbox spec with a quick search but could only find oils sold for Moss boxes, these were a 30 and 50 weight.
Possibly your EP90 is lubricating the synchro cones too well and the speeds are not being matched. The bigger crunch from the 3-2 shift may simply be the speed ratio difference is greater than the 4-3 shift.
Good luck, let us know how it goes.