[T3] On that 73 T-3 horn

William J catnine09 at dslextreme.com
Sun Nov 12 22:15:48 PST 2017

Jim what would you use to lube the horn contact and slip ring ?
----- Original Message ----- 
From: "Jim Adney" <jadney at vwtype3.org>
To: <type3 at vwtype3.org>
Sent: Sunday, November 12, 2017 7:50 PM
Subject: Re: [T3] On that 73 T-3 horn

> On 12 Nov 2017 at 16:23, William J wrote:
>>  I can see the contact wiper has a small hole worn in it about 1/16" 
>> diameter
>>  right where is rides on the ring.
> This is how they wear, and then they fail catistrafically. The
> contact ring on the wheel wears until it develops a loose spinter
> which catches in that hole, typically when you're in the middle of a
> turn. At that point, you have a choice: straighten up the wheel in
> spite of the ripping metal sounds coming from in there, or crash.
> I've been planning to start fixing these, but I wouldn't use brass,
> as what you can get is too soft and will just gall up and wear again
> quickly. I would go with spring steel or stainless. Not sure which
> would make the better choice, but something dissimilar to brass would
> be best.
> And get some lubrication in there.
>>  I also pulled the headland switch out and 4 way . The headlamp switch 
>> was loose
>>  where it fastens to the dash and the 4 way I wanted to check the 
>> connections
>>  and found the metal housing was loose so I recrimped it.
> Yes, these get loose, and the pot metal body doesn't take recrimping
> very well. I recommend finding some narrow nylon cable ties to
> tighten around them to keep them from coming apart.
> You'll need a special wrench to retighten the retaining rings, that
> hold those switches. There's a good deal on these on amazon.com,
> serviced by airhead parts, but cheaper than at airhead.com.
>> It also was a differnt part number than the 72 spare I have and has a
>> 300 ohm resistor from contact 54 to a solder spot titled R which is not
>> a male spade.
> The resistor started in '73. It's there so the bulb in the flasher
> knob will glow slightly in the dark.
> -- 
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
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