Horn Relay

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Horn Relay

#1380100 Fri Oct 09 2020 02:22 PM

Joined: Dec 2005

Posts: 50

OAK ISLAND NC

51bowtie

Wrench Fetcher

Going to install a horn relay in my 51. Its marked with the following numbers: 30, 85, 86, 87. Whats the proper makeup for this relay?

1951 Chevy 3100 5-window
261 cu in, 348 Head, Split Fenton Exhaust
Offy with Dual Weber 2 Bbl Carbs

Re: Horn Relay

51bowtie #1380102 Fri Oct 09 2020 02:27 PM

Joined: Dec 2005

Posts: 50

OAK ISLAND NC

51bowtie

Wrench Fetcher

By the way, they are aftermarket modern horns.

1951 Chevy 3100 5-window
261 cu in, 348 Head, Split Fenton Exhaust
Offy with Dual Weber 2 Bbl Carbs

Re: Horn Relay

51bowtie #1380104 Fri Oct 09 2020 02:35 PM

Joined: Sep 2001

Posts: 30,933

USA

tclederman Offline

Boltergeist

What brand & model-number horn?

What brand & model-number relay?

And/or post/attach photos of both.

Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]

Re: Horn Relay

tclederman #1380111 Fri Oct 09 2020 02:57 PM

Joined: Dec 2005

Posts: 50

OAK ISLAND NC

51bowtie

Wrench Fetcher

Both are Hella Products. The relay is model 960 388-46. 12v

Attached Files

51Horns.png (52.68 KB, 103 downloads)

1951 Chevy 3100 5-window
261 cu in, 348 Head, Split Fenton Exhaust
Offy with Dual Weber 2 Bbl Carbs

Re: Horn Relay

51bowtie #1380112 Fri Oct 09 2020 03:04 PM

Joined: Dec 2002

Posts: 3,997

Loveland, Colorado

Rusty Rod

Moderator - The Electrical Bay and Rocky Mountain Bolters

Here is a typical installation absconded from the googler.

Attached Files

horn relay schematic.gif (6.8 KB, 104 downloads)

Last edited by Rusty Rod; Fri Oct 09 2020 03:05 PM.

Another quality post.

Real Trucks Rattle

HELP! The Paranoids are after me!

Re: Horn Relay

Rusty Rod #1380114 Fri Oct 09 2020 03:13 PM

Joined: Dec 2005

Posts: 50

OAK ISLAND NC

51bowtie

Wrench Fetcher

Looks like what I need but....the relationship between the 85 terminal and the 30 terminal. Is it saying I need to jumper the two terminals?

1951 Chevy 3100 5-window
261 cu in, 348 Head, Split Fenton Exhaust
Offy with Dual Weber 2 Bbl Carbs

Re: Horn Relay

51bowtie #1380126 Fri Oct 09 2020 04:18 PM

Joined: May 2015

Posts: 3,417

Eagle River, Alaska

klhansen

Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums

Originally Posted by 51bowtie

Looks like what I need but....the relationship between the 85 terminal and the 30 terminal. Is it saying I need to jumper the two terminals?

Yes, although you could power each one separately from different circuits.

Kevin
First car '29 Ford Special Coupe
#2 - '29 Ford pickup restored from the ground up.
Newest Project - 51 Chevy 3100 work truck. Photos [flickr.com]
Busting rust since the mid-60's

Re: Horn Relay

51bowtie #1380159 Fri Oct 09 2020 08:54 PM

Joined: Jan 2000

Posts: 561

Apple Vallley, MN

Donsz

Shop Shark

The relay is a Bosch relay. The attached is similar to Rusty Rod's diagram, but shows the internals of the relay.
don

Attached Files

horn.JPG (42.28 KB, 66 downloads)

Re: Horn Relay

51bowtie #1380166 Fri Oct 09 2020 10:10 PM

Joined: Dec 2005

Posts: 50

OAK ISLAND NC

51bowtie

Wrench Fetcher

Hooked everything up per all the info I got and the horn continually sounds. Figured if was something in the steering column. Took it apart and stripped it. The horn still sounds! WTH?

1951 Chevy 3100 5-window
261 cu in, 348 Head, Split Fenton Exhaust
Offy with Dual Weber 2 Bbl Carbs

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