69 horn bolts

john302 · February 16, 2020, 02:32:52 PM

When did they stop using the silver plated clawed washer horn attaching bolts?And started using the non clawed black plated bolts?thanks

firstgenaddict · February 17, 2020, 08:47:21 AM

As far as I know there is NOT a running change for the horn bolt in the assem manual.

Edgemontvillage · February 25, 2020, 06:02:04 PM

I've seen original horn mounting bolts mostly in manganese phosphate however some in clear (silver) zinc, what's the determining factor which finish was used?

m22mike · February 25, 2020, 09:09:39 PM

They were removed by a revision to the A.I.M dated 10/68.

Edgemontvillage · February 26, 2020, 12:31:12 AM

Quote from: m22mike on February 25, 2020, 09:09:39 PM
They were removed by a revision to the A.I.M dated 10/68.

What was removed 10/68?

m22mike · February 26, 2020, 07:39:31 AM

Quote from: m22mike on February 25, 2020, 09:09:39 PM
They were removed by a revision to the A.I.M dated 10/68.

I should have added that the zinc plated bolts were changed to the same phos bolts that holds the lower hood latch. The numbers are there, and somewhat hard to read in the revision box, depending on your copy of the AIM. Later I will look up a page # for you.
Mike

68camaroz28 · February 28, 2020, 07:43:06 PM

Hi Mike, our original 68 had zinc plated bolts but seems like most 69's have the phosphate but have noted both.

m22mike · February 29, 2020, 01:23:50 PM

Yes Chick. I have seen a few very early built 69's with bright plated bolts. There was most likely a transition period until old stock was used up.
Not a Camaro, but on Grady's Nov 68 built 69 Nova, it had a bright plated horn bolt. I believe a hardware Change like this and others was across the whole GM line ? Not just Camaro JMO.

Mike

firstgenaddict · February 29, 2020, 04:43:43 PM

Here is a VERY EARLY original paint 09B LA car which has one of each...

hornworks · May 14, 2020, 05:31:06 PM

I was told by an old Delco engineer that electrical parts were designated to be attached with silver or cad plated bolts for ground purposes.

hornworks · May 27, 2020, 06:01:57 PM

Just noticed the horns in the picture have been off,they are switch. the wrong sides. Should face forward

william · May 28, 2020, 11:31:57 AM

Quote from: hornworks on May 27, 2020, 06:01:57 PM
Just noticed the horns in the picture have been off,they are switch. the wrong sides. Should face forward

Depends on build date. That is the positioning per the AIM. A friends' 10B Norwood Z/28 has them in the AIM position. Definitely switched in production shortly afterwards at both plants; AIM never updated.

hornworks · May 29, 2020, 08:50:04 PM

Never noticed that William. You are correct.

News:

69 horn bolts