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Indicator Switch Contact Points - Repair?


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#1 PeterAllen

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Posted 20 November 2016 - 11:35 AM

To engage the o/s indicators requires and extra 'tug' on the arm of the switch. I've pulled it apart - but unfortunately didn't take photos - and it appears the contact points are worn. They are similar in appearance to distributor contact points.

 

I'm wondering if anyone has suggestion how I could either build up the worn/pitted contacts, e.g. silver solder? or modify the mechanism to gain more movement, e.g bigger ball, stretch spring?

 

Thanks.

 

(edit) There are some images here of an earlier 4 contact switch but mine is a 2 contact later version.

http://www.classiczc...ch-spring-ball/


Edited by PeterAllen, 20 November 2016 - 12:14 PM.


#2 TDoherty

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Posted 21 November 2016 - 06:37 AM

Hi!

I have the same problem and used this link as the basis for pulling mine down and cleaning/refurbishing it however it really didn't result in a marked improvement of any sort!
I'm about to pull it out/down once more to see what else I might be able to do so will follow this string to see if anyone else can offer any pearls of wisdom.

Cheers Tony
https://fiddlingwith...-signal-repair/

#3 260DET

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Posted 21 November 2016 - 08:10 AM

The only thing that I can think of is to hard solder on some new points from, say, ignition points. Or else use a brazing or more suitable rod to build the old ones up. Perhaps someone with suitable expertise can offer a repair service, there is sure to be a way to do it.



#4 PeterAllen

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Posted 21 November 2016 - 08:38 AM

I asked the same question on a couple of sites and got this handy solution.

 

It may not suit the purist but I've already changed a few things on my S30 so I don't think this should influence it's provenance too much.

 

http://forums.hybrid...-signal-switch/

 

Google the part number (Dorman part #85905) to get a good idea of the item

 

Also, I suggested in the OP that a 2 terminal switch was a later version, I now think I got that the wrong way around and it's the earlier approach.

 

 

Tony. Thanks for the link. Unfortunately the contacts on mine are simply worn/sparked away rather than dirty. I really needed to either build up the contacts or get more movement of the mechanism.


Edited by PeterAllen, 21 November 2016 - 08:45 AM.

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#5 Gyzmo

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Posted 30 November 2016 - 07:32 PM

WRT the contacts I soft soldered mine...

 

There is a guy in the US that rebuilds both the Turn Signal & Light Switches.

I broke the horn contact mount in my Z when removing the steering column cowel - due to it's age - plastic is very brittle.

He 3D prints the mounting block for US$5 + US$10 delivery - pay via Paypal

http://datsun-240z-upgrades.net/

I've posted an image of the broken bit in the gallery...






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