Horn Detailing

Moderators: 330GT, abrent

Post Reply
User avatar
peterp
Posts: 266
Joined: Sun Feb 12, 2006 9:42 am
Location: NJ

Re: Horn Detailing

Post by peterp » Mon Jul 22, 2019 10:32 am

My 1966 (slightly later than 250's) Fiamm hoses I believe are original and have no lettering.
Peter P
1966 330 2+2 series 2 #8169

User avatar
tyang
Posts: 3856
Joined: Wed Nov 27, 2002 10:28 pm
Location: New York
Contact:

Re: Horn Detailing

Post by tyang » Mon Jul 22, 2019 8:05 pm

no lettering.

Tom
'63 330 America #5053

User avatar
John Vardanian
Posts: 1774
Joined: Wed Sep 04, 2002 12:13 am
Location: San Francisco Area

Re: Horn Detailing

Post by John Vardanian » Tue Jul 23, 2019 1:42 am

Thanks everyone. I have not seen lettering on the 250 hoses either. I was looking thru the net and did find this on ebay. It's not a 250 horn, but does have the red hoses with lettering.

https://www.ebay.com/itm/AIR-HORN-FIAMM ... SwUxlbw5GX

john
PF Coupe

Melchior
Posts: 77
Joined: Thu May 03, 2018 11:44 am

Re: Horn Detailing

Post by Melchior » Mon Aug 12, 2019 3:13 am

Hello Tom,

This is what my horn assembly looks like. The trumpets seem to br aloy only, no paint. I am rather sure that this is untouched due to the history of the car.

Regards,

Martin
Attachments
AF00905A-A12E-4E84-B9B8-AE0260A86F8B.jpeg
A0C169E1-2FA9-4B49-9F86-2C2BBDC38153.jpeg
0F0AAAAB-D852-4FF4-98EA-9C13FAB65009.jpeg

Wrigs2019
Posts: 33
Joined: Sat Aug 24, 2019 1:45 pm

Re: Horn Detailing

Post by Wrigs2019 » Mon Feb 17, 2020 1:41 pm

I’ve decided to restore the Fiamm air horn off of my 66 330. I’m adding photos to provide information for others wishing to do the same. Disassembly was a bit of a hassle requiring a lot of penetrating oil and elbow grease. Does anybody have tips on cleaning the electric motor?
The attachment ADA203F9-77F5-4BBD-93BC-2374CD279E95.jpeg is no longer available
The attachment ADA203F9-77F5-4BBD-93BC-2374CD279E95.jpeg is no longer available
Attachments
ADA203F9-77F5-4BBD-93BC-2374CD279E95.jpeg
66 330 GT 2+2 #9153

Wrigs2019
Posts: 33
Joined: Sat Aug 24, 2019 1:45 pm

Re: Horn Detailing

Post by Wrigs2019 » Mon Feb 17, 2020 1:42 pm

DDA56213-F20A-41C6-98AD-8827A75E1799.jpeg
66 330 GT 2+2 #9153

User avatar
John Vardanian
Posts: 1774
Joined: Wed Sep 04, 2002 12:13 am
Location: San Francisco Area

Re: Horn Detailing

Post by John Vardanian » Tue Feb 18, 2020 2:40 am

Unless there is oily contamination, there should be nothing other than carbon dust inside the fields. High pressure air should be enough to clean things. If it's caked contamination, I would Google the remedy... but rinsing things with mineral spirits shouldn't hurt. If you end up wetting it make sure it's thoroughly dried before you electrify it.

john
PF Coupe

User avatar
tyang
Posts: 3856
Joined: Wed Nov 27, 2002 10:28 pm
Location: New York
Contact:

Re: Horn Detailing

Post by tyang » Tue Feb 18, 2020 8:03 pm

Nice Job!

The trumpets are either a red candy finish, or grey hammertone. You can sometimes see the old finish to determine which one you have. I think with a 330, it's the red candy. I used a Tamya (sp?) hobby paint. Somewhere in my blog I've talked about it.

Be very careful on the y-fitting. Use a heat gun if you are going to disassemble it as it gets brittle. Both the hose and y are available.

Bracket is white cadmium.
horn body is back wrinkle.
The trumpet bases are grey hammertone.

Tom
'63 330 America #5053

Wrigs2019
Posts: 33
Joined: Sat Aug 24, 2019 1:45 pm

Re: Horn Detailing

Post by Wrigs2019 » Thu Feb 20, 2020 2:01 pm

Mostly finished with the air horn. The air compressor works well but little sound is coming from the trumpets. I suspect the original red hose will need to be replaced as it is cracked in a few places. I had a really tough time finding the slotted machine screws so I just ended up put the old screws back in. I believe this color scheme is correct for a late 60s Roadmaster based on the attached pictures and this detailed thread.
A44537C4-699E-4350-B1AA-B651C17118B4.jpeg
66 330 GT 2+2 #9153

tim
Posts: 318
Joined: Tue Sep 03, 2002 2:48 pm
Location: sacramento, ca

Re: Horn Detailing

Post by tim » Fri Feb 21, 2020 2:30 am

Greetings... Try screwing the trumpet in or out while running the compressor. They seem to be sensitive about location.

Tim
1964 330GT 5769 -the big yellow taxi 61&66 Morgan +4's Daimler SP250 and some other dull stuff plus a brand new Mini Cooper S Clubman JCWS

User avatar
John Vardanian
Posts: 1774
Joined: Wed Sep 04, 2002 12:13 am
Location: San Francisco Area

Re: Horn Detailing

Post by John Vardanian » Sat Feb 22, 2020 2:46 am

I found those screws in Amazon in stainless steel. IF you go back a few pages on this thread you will see.

To tune the trumpets, turn them in till they gently contact the reeds. Then power up the compressor and unscrew the two trumpets out simultaneously until you get the best/loudest sound. Then lock in the jam nuts.

john
PF Coupe

Wrigs2019
Posts: 33
Joined: Sat Aug 24, 2019 1:45 pm

Re: Horn Detailing

Post by Wrigs2019 » Sat Feb 22, 2020 3:09 pm

Will do. Thanks John!
66 330 GT 2+2 #9153

User avatar
peterp
Posts: 266
Joined: Sun Feb 12, 2006 9:42 am
Location: NJ

Re: Horn Detailing

Post by peterp » Sat Feb 22, 2020 4:51 pm

I hate to post a negative comment, but I believe the pump body should be wrinkle black. Period photos show that Fiamm produced the pump in both black and silver, but I suspect car manufacturers would choose pump body color based upon how it would blend in its factory mounting position. The rationale for choosing colors is a total guess, but I'm pretty sure that on 330's the pumps were typically fine grain wrinkle black.

Agree with the others on horn turning. I brought mine inside the house and, with ear plugs in, tried to tune the horns using a piano tuner app on the iPhone. I would have thought they would tune to be a whole tone apart, but the sweet spot ended up bing more like a half-tone apart (I think E and E-flat if I recall correctly). If you tune both to the loudest possible position, that should presumably yield the correct pitches from each horn. The volume level does change a bit when you tighten the lock nut down, so it may take a couple iterations to get each horn tuned.
Peter P
1966 330 2+2 series 2 #8169

Wrigs2019
Posts: 33
Joined: Sat Aug 24, 2019 1:45 pm

Re: Horn Detailing

Post by Wrigs2019 » Sat Feb 22, 2020 6:55 pm

Yes! I stand corrected by Tom and Peter. I’ll have to address the paint along with the screws.
66 330 GT 2+2 #9153

User avatar
tyang
Posts: 3856
Joined: Wed Nov 27, 2002 10:28 pm
Location: New York
Contact:

Re: Horn Detailing

Post by tyang » Mon Feb 24, 2020 5:33 pm

Hearing about you guys tuning the horns brings a smile to my face thinking about how we must all drive our families crazy working on these cars! Carry on!

Tom
'63 330 America #5053

Post Reply