C3smallblock

When I adjust the telescopting on my steering wheel (76 Vette) while driving, the horn is so sensitive that the cars vibration makes the horn start nutting off until I clamp up the ring again. I know that I could just wait till the car was parked and it would not be a problem, but I was showing off the telescoping (someone on the forum just informed me that I had this incredible feature) to my wife.

Is this how sensitive all horns are, or does mine need adjusting/repairing/replacing?

Kev

VetteHalen

nope, not mine. in fact, it is so not sensitive (insensitive?) that I could be pounding on the horn like a madman and it won't sound. not even a squeak.

(guess i should get it fixed, huh?)

C3smallblock

Yep, I think that could be a good idea

Kev

tgcattle

you probably need another shim behind horn contact

Easy Mike

Bingo.

Jim Shea

The 1976 AIM shows a 1/8 inch gap between the underside of the horn cap #9 and the locking lever (9A) . That gap is controlled by the number of shims #6 between posts in the steering wheel hub and the upper contact assembly #7.

When you rotate the locking lever to unlock the telescope feature, you unscrew the star screw (called out as screw (9A)) which raises the locking lever a small amount. This must be cutting down on the clearance between the underside of the horn cap and the lever itself.

You need to install one or two additional shims to space the upper horn contact and the horn cap away from the locking lever. Shims are available through most major Corvette suppliers (i.e. Wilcox, Zip, Corvette Central, etc)

Jim

C3smallblock

Thanks heaps for the info, I will get a couple of shims in my next batch of parts.

Kev

tgcattle

I just used 1 flat washer per screw on horn contact, make sure the washer doesn't touch the metal horn contact

psycho dad

I have trouble blowing my horn, I have to keep pressing all around the button till I find the "Sweet spot". Is this also a shim problem?