LAYDOWN GEARBOX SELECTOR BUSHES
On my 1954 ES2 I’ve been having gear selector problems, so have stripped and removed the gearbox from the frame as the bush for the quadrant arm leaks oil. When I stripped it down I found that the quadrant was rotating on the spindle, rather than the spindle turning in the bush.
I’ve looked at the AMC gearbox diagrams and see that they incorporate an ‘O’ ring on the selector plate and quadrant spindles outer ends. Does anyone know whether the AMC gearbox bushes with the ‘O’ ring seal will fit into the Laydown gearbox shell without modification? Also, I see that these bushes on the inside of the gearbox are raised above the casting face, but by how much?
Photos attached (hopefully).
Laydown gearbox bushes - photos
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I recently modified a 1956…
I recently modified a 1956 ES2 laydown box to take the later 'o' ring seals as the original bushes were worn and leaking g/box oil. This involved machining a recess in the outside of the g/box case to take the 'o' ring. New bushes and seals came from Andover
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Machining Laydown gearbox
Thanks Peter,
Can you recall the diameter and depth of the machining for the O ring? I've ordered the bushes and seals from AN so will see what needs doing when they arrive.
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Afternoon Phil I measured…
Afternoon Phil
I measured the counterbore on a commando box that i had in bits at the time and did it to those dimensions. 0.680" in dia by 0.110" deep
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Laydown gearbox selector spindle seal
Peter, thanks for the dimensions for counter boring for the O ring to fit. Presumably the Commando bush is shorter than the Laydown gearbox bush.
David, the X ring is a good idea but an O ring is better than No ring!
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I'll try again with the pictures!