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1978 MGB changing reverse/backup switch

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j949186m Gold Member Ian Crozier
Buckhannon, WV, USA   USA
Has anyone changed the reverse/back up switch and how difficult is it. Thanks. .......Ian

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dickmoritz Avatar
dickmoritz Gold Member Dick Moritz
Philly 'burbs, PA, USA   USA
Quite easy. It's on the top right side of the gearbox. Just pull off the two spade connectors and unscrew the switch. Access is a little awkward but not too bad.

The switch is adjusted by adding or removing (usually red...) fiber washers from under the switch. Probably using one washer will work for you.

During reassembly, it doesn't matter which wire goes on which connector on the switch, since all the switch does is complete the connection between the two terminals...

Dick



Errabundi Saepe, Semper Certi
(Often wrong, but always certain)

BumbleB74 Avatar
BumbleB74 William Milholen
Tidewater, Tidewater VA, USA   USA
Do you have a continuity tester? I would be tempted to verify the switch is really bad, versus the wiring to and from it. Many times that segment of wiring gets pretty beat up for various reasons.

On my '76.....it looked like it had been drug down the road for many miles...just an awful mess.



1974-1/2 Roadster, "Bumble Bee", Corvette Yellow - in shambles, wire wheels
1976 Roadster, "Virus", Sandglow - "driver" condition (stock + 32/36 Weber DGEV, cast iron header, 25D distributor), bolt on wheels, ON the road!

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j949186m Gold Member Ian Crozier
Buckhannon, WV, USA   USA
Thank you Dick and William. Tested the circuit and all was okay apart from a badly frayed wire. All working again.
Regards....Ian

dickmoritz Avatar
dickmoritz Gold Member Dick Moritz
Philly 'burbs, PA, USA   USA
thumbs up

Dick

In reply to # 3514898 by j949186m Thank you Dick and William. Tested the circuit and all was okay apart from a badly frayed wire. All working again.
Regards....Ian



Errabundi Saepe, Semper Certi
(Often wrong, but always certain)

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