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EM 4-speed Back-up Switch Delete
Posted by: MoxyRamone ()
Date: March 13, 2018 05:26PM

My recently acquired 4 speed transmission is missing the back up light switch. There's nothing there but a rag in the empty hole. My car is equipped with the early 3 speed style switch in the tunnel, so I don't need the one on the Transmission. What can be used to plug the hole? I can't seem to find a bolt or a plug that fits. What have you all used for this?

John Carver
Landrum, South Carolina

1964 Monza Convertible

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Re: EM 4-speed Back-up Switch Delete
Posted by: MattNall ()
Date: March 13, 2018 05:34PM

Buy a straight threaded plug to fit... NAPA probably has it. Just like an oilpan drain plug.





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Edited 1 time(s). Last edit at 03/13/2018 05:35PM by MattNall.

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Re: EM 4-speed Back-up Switch Delete
Posted by: vairmech ()
Date: March 13, 2018 06:03PM

Actually a very short cap screw works wonders. You will need the gasket for the BU switch. Make sure you get the shortest 7/16-18 cap screw you can find as it needs to be about 3/8" of threads so it doesn't bottom on the shaft.

Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com

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Re: EM 4-speed Back-up Switch Delete
Posted by: Wagon Master ()
Date: March 13, 2018 06:08PM

1/2"-13 X 3/8" socket head cap screw and a copper washer. Almost every drain plug I've seen will be either too long or too big of a head. Sealing surface is recessed. Your 3-speed tunnel switch will need modifying to function properly.

'64 Monza Coupe 140 4 speed
'61 700 Lakewood 95 4 speed
'69 Monza Convert. 140 Auto.

Been aircooled since 1973
Northwest Ohio

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Re: EM 4-speed Back-up Switch Delete
Posted by: Frank DuVal ()
Date: March 13, 2018 07:25PM

I also recall it being 1/2-13, but my memory is not what it once was, steel trap has rusted open.grinning smiley

Bolt has to be short to not drag on the moving rod that actuated the switch.

Frank DuVal

Fredericksburg, VA

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Re: EM 4-speed Back-up Switch Delete
Posted by: vairmech ()
Date: March 14, 2018 05:05AM

OH! maybe it's 1/2-13! Now I will have to go double check!

Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com

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Re: EM 4-speed Back-up Switch Delete
Posted by: junkman ()
Date: March 14, 2018 05:53AM

Ask one of your Corvair friends for a 4 speed switch that the wires have been ripped off of. Certainly, someone must have one on a transmission that they removed from a car.

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Re: EM 4-speed Back-up Switch Delete
Posted by: rlp11 ()
Date: March 14, 2018 01:00PM

This is what I use to plug the switch hole. Works great and will not brake the bank.
[californiacorvairparts.com]

Roger Parent
El Cajon, CA
1964 Monza Driver
1964 Monza Project



Edited 2 time(s). Last edit at 03/14/2018 01:02PM by rlp11.

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Re: EM 4-speed Back-up Switch Delete
Posted by: MoxyRamone ()
Date: March 14, 2018 03:21PM

rlp11 Wrote:
-------------------------------------------------------
> This is what I use to plug the switch hole. Works
> great and will not brake the bank.
> [californiacorvairparts.com]
> duct=3921&controller=product


Thanks Roger! That's exactly what I was looking for! I just ordered one (and some other goodies).
Thanks to everyone for all of the suggestions and information!

John Carver
Landrum, South Carolina

1964 Monza Convertible

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