90 or 140 in the gearbox and back axle?
Moderators: Ian Grace, Will Grace
90 or 140 in the gearbox and back axle?
Can someone remind me which it is? I'm thinking 90 is fine, but I think 140 is specified soemwhere? The lube chart simply says use Shell gear oil.
Re: 90 or 140 in the gearbox and back axle?
Not sure which is should Be Ian, but to my mind, the thicker the better.... it might stop it finding its way out quite so quick...! 

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- Location: Bedfordshire UK
Re: 90 or 140 in the gearbox and back axle?
I use 90 in the gearbox and 140 in the axle, I found that 140 in the gearbox can be a bit sticky when cold. 

Re: 90 or 140 in the gearbox and back axle?
I used 140 in both but agree with Trevor that the gearbox needs warming up before you get a smooth gear change.
Cheers
Jeremy
Cheers
Jeremy
Re: 90 or 140 in the gearbox and back axle?
I use 140 in both, non ep of course, I also noticed the lube chart is a bit light on sae numbers but cross referenced with another book, possibly the pitmans book of the minor or the morris register book and got the viscosity from there.
if it's got wheels or chips - it'll cost you dear