Triumph Sports Cars

engine swaps and other performance upgrades, plus "factory" V8s (Stag and TR8)

Go to Thread: PreviousNext
Go to: Forum ListMessage ListNew TopicLog In


RyanS
Ryan S

(7 posts)

Registered:
12/15/2013 07:10PM

Main British Car:


Horn troubles
Posted by: RyanS
Date: March 15, 2014 10:28PM

I am experiencing some difficulty with my horns - a little background

1974 TR-6 Ford 302. Dan Masters wiring harness, motolita steering wheel, custom steering shaft with woodward u-joints, syock steering rack and richard good solid rack mounts.

The wiring harness is in and everything functions properly except the horn.

When I touch the steering wheel the horn sounds (not the buttom, just the outer rim with very slight pressure). When I use the flash to pass switch, the horn sounds. The button also makes the horn sound. Once the horns starts, sometimes I have to disconnect the battery to stop it.

Any clues where to look for the source of this problem? I happens with and with out the ground from the steering rack attached to a ground point.

When I was testing the new harness out last weekend, the horn seemed to work fine.


And since most of us love photos, here's a shot with the custom walnut burl dash freshly installed. The gauges are from New Vintage USA.

http://i531.photobucket.com/albums/dd358/gonekayatgmailcom/dash01_zps35ab9dad.jpg

http://i531.photobucket.com/albums/dd358/gonekayatgmailcom/dash02_zps5ba5eeeb.jpg


Thanks
Ryan


mgb260
Jim Nichols
Sequim,WA
(2071 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: Horn troubles
Posted by: mgb260
Date: March 15, 2014 10:51PM

Probably pinched wire on horn. Dash looks great.


74ls1tr6
Calvin Grannis
Elk Grove,CA
(1151 posts)

Registered:
11/10/2007 10:05AM

Main British Car:
74 TR6 / 71 MGB GT TR6/Ls1 71 MGB GT/Ls1

authors avatar
Re: Horn troubles
Posted by: 74ls1tr6
Date: March 16, 2014 06:07PM

Ryan,

You may need to extend the steering wheel shaft out just a little so that the horn contact spring doesn't make the connection for the horn. Mine did this too until I did this. Do you remember the part that is behind the steering wheel horn button(in the wheel adapter) with a spring in it(it is about 1 1/2" long 1/4" diameter)? There is a hole in the steering wheel adapter that this parts goes through and makes contacts with the copper plate. If it touches the horn will sound. The part I'm talking about is 560-430. Type that number in the search box on moss website.

[www.mossmotors.com] Part 111 on the diagram.

This may be the problem too?


RyanS
Ryan S

(7 posts)

Registered:
12/15/2013 07:10PM

Main British Car:


Re: Horn troubles
Posted by: RyanS
Date: March 16, 2014 09:55PM

Calvin,
I messed with it today and came to a smilar conclusion . I moved the wheel and adapter out a little less than a 1/4" and the horn now functions normally.

Jim,
Thanks for the compliment on the dask. It was my first veneering project. Version 2 will be even better!


Ryan


mgb260
Jim Nichols
Sequim,WA
(2071 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: Horn troubles
Posted by: mgb260
Date: March 16, 2014 10:56PM

I might bug you later on, I have an Alpine dash I would like to redo.


Sorry, only registered users may post in this forum.