Jubilee Horn Mounting Plate....Is this a Harley Part?

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old1955
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Jubilee Horn Mounting Plate....Is this a Harley Part?

#1

Post by old1955 » Wed Dec 09, 2009 10:58 am

G'day,

This little plate has been bugging me. Is this a Harley part?
The culprit I'm talking about is sometimes seen sometimes not. It's a small plate that resides
under the two bolts that mount the hanging rubber section of the horn to the engine bracket. I always look when
there is a picture showing this section of bikes with Jubilee horns. I was having a close look at Felthamws 55
and I thought I could see it, but black on black is hard to distinguish. It is on a late 54 on page 183 of Palmers
book. I guess it could get left off easily. My parts books doesn't show it. Although there is something similar
for Big Twin springer type horns but not the same. I have noticed one on Mbskeam's bike too.
This may have been a repair kit, an extra or an update, I haven't got a clue.
Check the shot! This is a cut out from a shot that was uploaded here by FelthamW, I think.

Thanks
Pete
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john HD
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Re: Jubilee Horn Mounting Plate....Is this a Harley Part?

#2

Post by john HD » Wed Dec 09, 2009 12:03 pm

pete,

i belive it is an oem part.

i have an old horn pack out in the shop that shows an imprint in the rubber where it would have been.

john

DaveSwanson
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Re: Jubilee Horn Mounting Plate....Is this a Harley Part?

#3

Post by DaveSwanson » Wed Dec 09, 2009 1:41 pm

My original 56 FLH has it. It is integral to the horn, not a separate piece.
DSCN0759.jpg
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beets
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Re: Jubilee Horn Mounting Plate....Is this a Harley Part?

#4

Post by beets » Wed Dec 09, 2009 2:56 pm

MY 56 is the same as Dave's. THere is no rubber in the mount, but the pieces are springy. I had a 54 years ago that had a rubber mount.

PanPal
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Re: Jubilee Horn Mounting Plate....Is this a Harley Part?

#5

Post by PanPal » Wed Dec 09, 2009 6:05 pm

I always thought the originals were the thin steel plates stacked together and the replacement part for this is rubber because the plates were cracking. The plate you are talking about would help hold the rubber better than washers. So was this plate also used with the steel mount? The original steel type that was on my 59 had broken plates and was replaced with the rubber style. I think I still have the old assembly, i'll have to see if the plate is with it. I recently took my horn off. I figure I have taken my horn off and put it back on more times than I used the horn. Next time the tanks come off I will get that bracket off too and tuck the wires up between the tanks.

Perry Ruiter
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Re: Jubilee Horn Mounting Plate....Is this a Harley Part?

#6

Post by Perry Ruiter » Wed Dec 09, 2009 8:47 pm

The piece in question is a thick reinforcement that is typically spot welded to the spring steel mounting plates. My understanding is that the spring steel horn mount was used on rigid framed bikes and the rubber mount on swing arm. I don't know if that was an exact switchover point (maybe some 57s had rubber or some 58s had steel, I don't know), but certainly the rubber mount was factory fit not just a repair part. If you look at this factory photo of a 58 buddy seat it's clear the horn mount there is rubber ... Perry
Last edited by Perry Ruiter on Thu Dec 10, 2009 11:11 pm, edited 1 time in total.

PanPal
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Re: Jubilee Horn Mounting Plate....Is this a Harley Part?

#7

Post by PanPal » Wed Dec 09, 2009 9:20 pm

Wow. my eyes must be going. I couldn't tell you which style was on it!

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Re: Jubilee Horn Mounting Plate....Is this a Harley Part?

#8

Post by 4pans1man » Wed Dec 09, 2009 10:04 pm

Old 1955,

Added 2 photos in the Gallery 'Miscellaneouse" section. 1 photo, horn is on my 1960 FLH, the other is a spare. Rubber mounts and no plate. Flat washers only. Looks like the rigid/swing arm theory might hold true.

Good luck, Tony.
Last edited by 4pans1man on Thu Dec 10, 2009 2:36 am, edited 1 time in total.

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Re: Jubilee Horn Mounting Plate....Is this a Harley Part?

#9

Post by PanPal » Wed Dec 09, 2009 10:19 pm

I removed the steel version from a 59 but these bikes have been around a while and a lot of parts may have been changed over the years.

old1955
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Re: Jubilee Horn Mounting Plate....Is this a Harley Part?

#10

Post by old1955 » Thu Dec 10, 2009 11:47 am

G'day again,
Wow! the input is great, thanks!
I think the Dave Swanson bike should be documented! What a gem!
First off, this has cleared up a lot for me, I didn't realize there were two different brackets
for starters. I thought all were rubber mounted.
PanPal mentioned that his 59 had an all steel bracket, which I guess is what Dave Swanson is showing me
in the shot of his bikes horn mount. Thanks Dave! (theirs that little bracket)

Well here is a mystery curved ball for you PanPal.

Last year I restored a 59 and it had a rubber mounted horn
gallery/image.php?album_id=1&image_id=1529
and the rubber section was still riveted to the horn rim. I checked it carefully and noticed all
the rivets looked the same around the horn, and thought they had never been touched before ( I could be wrong of course)
I kept the rivets

My 55 has a thick, say 1/4" piece of, like webbing mostly material based but has some sort of black sealing on it, I don't think
its vulcanized rubber. There is some things on my bike untouched. I don't think this is one.

That's an interesting shot you put up Tony (4pans1man) of the bike. That looks just like the same material on my 55

So the question of the little bracket is solved for me, the new question is, when was steel out and rubber in,
or did they booth run on the production line, depending on what was available, or was the rubber a quick fix that turned into
a production norm later on. Beets says he had a 54 with a rubber mount and has steel on his 56 same as Dave.

Thanks Perry I had a look at that shot. I hear you!

Another little Pan mystery.
Pete
dscf0006.jpg
dscf0004.jpg
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PanPal
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Re: Jubilee Horn Mounting Plate....Is this a Harley Part?

#11

Post by PanPal » Thu Dec 10, 2009 5:10 pm

I found the steel bracket that I removed. It looks like it was cad plated unlike Dave's. I did take some pictures with my phone this morning but the pictures suck. My bracket still has the bolts (4) that were in it when I removed it. If the steel brackets were rivited also, then I have to believe it had been replaced at some point before I got the bike.

Perry thanks for that link to the 58. Interesting to see the primary screw heads, wire routing and a good shot of the spring mounts on the primary as well. It seems odd the way they routed the spark plug wires.

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Re: Jubilee Horn Mounting Plate....Is this a Harley Part?

#12

Post by Perry Ruiter » Thu Dec 10, 2009 11:22 pm

PanPal wrote:Wow. my eyes must be going. I couldn't tell you which style was on it!
The steel version, where it's riveted to the horn, has a couple spring steel plates, a spacer and a couple more plates. The spacers allow the spring steel plates to sandwich the mounting bracket. The rubber horn mount doesn't sandwich the bracket and will be either in front of the mounting bracket or behind it. If you can clearly see the mounting bracket (as you can in the that photo) then you know you're dealing with a rubber mount. The shape of the rubber mount is also different than the spring steel plates. Lastly if you look to the lower left side of the mounting bracket you can see the reinforcement webbing (canvas?) in the rubber ... Perry
Last edited by Perry Ruiter on Thu Dec 17, 2009 8:39 pm, edited 1 time in total.

FelthamW
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Re: Jubilee Horn Mounting Plate....Is this a Harley Part?

#13

Post by FelthamW » Thu Dec 17, 2009 4:50 pm

Courtesy of Mr Chris Haines. I had questions regarding proper horn, horn mount, wiring, etc and this is what he sent me as correct for a '55. This is either a '55 prototype or an actual '55 model year photo.
Wayne
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old1955
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Re: Jubilee Horn Mounting Plate....Is this a Harley Part?

#14

Post by old1955 » Fri Dec 18, 2009 10:09 am

G'day Wayne
Yeah....very nice shot
thanks

So do you think it possible that some horn mounts for 55s
may have been the reinforced webbing.
It just came to me, that maybe it has something to do with the wiring.
if it had the steel bracket, you would only need one positive wire and earthing would go straight through
the bracket. I'll just check the wiring diagrams.(mine has two wires as it has the webbing)..................

No, the schematics all show two wires to the horn , including the radio specials.

Pete

early-timesmc
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Re: Jubilee Horn Mounting Plate....Is this a Harley Part?

#15

Post by early-timesmc » Tue Dec 11, 2012 3:25 am

beets wrote:MY 56 is the same as Dave's. THere is no rubber in the mount, but the pieces are springy. I had a 54 years ago that had a rubber mount.


this is the correct setup for 1954. flexible(layers of canvas) came on the 58's.

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