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Username Post: Horn Button Assm 77 G20 Van        (Topic#357347)
68Cam 
Member
Posts: 66

Loc: Des Moines, IA
Reg: 05-29-04
07-23-19 01:44 PM - Post#2771384    

77 Chev Van G20 Tilt Steer wheel. The Horn button setup in the steer wheel
seems pretty simple, but it isn’t working. There are 3 pieces: 1. Spring plate
2. Cup shaped piece 3. Plastic insulator/screw holder. When I install the
spring plate on the little plastic ledge on the inner diameter of the steer
wheel (convex toward me) & press down with my thumbs near the steer
shaft, the spring properly gives in, then springs back up. But when I install
the cup shaped piece & plastic with the screws (even if I leave them loose),
there is no spring action, so the horn can’t make a ground to power the
relay. If I connect a ground to the carbon sprung peg, the horn honks fine.
The steer wheel plastic is cracked in various places, but there is a metal
ring in the inner diameter of the area where the horn button parts go,
so it looks like the inner diameter is ok. I have removed & replaced
the parts several times & don’t see anything causing the problem;
Any ideas? Thanks




 
gchemist 
Senior Chevytalk Moderator
Posts: 24929
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
07-25-19 04:34 PM - Post#2771569    
    In response to 68Cam

I've seen a few where the spring is too short. I'll have to look at diagrams. It's been a while.

'83 Silverardo XST - ZZ4 powered
'95 Jimmy SLT (Bought @131,814)
'96 GMC Jimmy LS Ret. @236651 miles


 
68Cam 
Member
Posts: 66

Loc: Des Moines, IA
Reg: 05-29-04
07-27-19 04:29 PM - Post#2771744    
    In response to gchemist

Thank You. Surprisingly, I haven't measured yet, but my 68 Camaro looks like it has the same setup as my 77 Van.



 
gchemist 
Senior Chevytalk Moderator
Posts: 24929
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
07-28-19 04:27 AM - Post#2771778    
    In response to 68Cam

What I do is just stretch the spring a little. Usually works. Yes, GM kept the same horn button style for a long time.

'83 Silverardo XST - ZZ4 powered
'95 Jimmy SLT (Bought @131,814)
'96 GMC Jimmy LS Ret. @236651 miles


 
68Cam 
Member
Posts: 66

Loc: Des Moines, IA
Reg: 05-29-04
07-28-19 04:18 PM - Post#2771833    
    In response to gchemist

What process do you go through to stretch the spring?



 
gchemist 
Senior Chevytalk Moderator
Posts: 24929
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
07-29-19 03:52 AM - Post#2771874    
    In response to 68Cam

Wrap/slide the spring around a nail or something. Gently pull on one end. Don't stretch the middle. It will weaken the spring.

'83 Silverardo XST - ZZ4 powered
'95 Jimmy SLT (Bought @131,814)
'96 GMC Jimmy LS Ret. @236651 miles


 
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