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Old 06-03-2012, 09:55 PM   #855
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1984 34.5' Airstream 345
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Awesome Pic Mike!
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Old 06-05-2012, 10:59 PM   #856
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1984 34.5' Airstream 345
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Huge HUGE day for me today!

Ever since I bought my 345 I have had no horn...

I actually have plenty...
Two Spartan Electric Trumpets on the roof...



Two new looking Fiamm horns under the Hood...



And an older looking one down low on the drivers side under the washer fluid reservior...



None of them worked..
The big clue was the missing fuse in Chevy Chassis glovebox mounted fusebox...
The one marked HORN...



Putting a fuse in the slot resulted in an INSTANT Blow... and burned fingers if you dont use the fuse tweezers.... I learned!

Aside from the No horn, I also had no 12v power at the drivers and passengers recepticles..
I thought that was unconnected, but looking in my Chevy C/K truck manual told me that the always on 12V feed to the horn... also spurs off and feeds the Cigar lighter...

So today it was ON, big time!
I broke out the BIG Guns...
My PowerProbe 3 and the Powerprobe ECT2000 Short Finder!




First I checked the fuse pocket...
The PP3 confirmed 12V on one side and a dead short on the other.

I plugged in the ECT 2000 into the dead short side. It begins to send a signal down the wire, which you trace with a wireless receiver..
The display beeps and the LED says a shorted circuit...

It gives a strong signal in the glovebox area.
It does not give me a good signal under the hood, or near any of the horns!
It does give a strong signal under the drivers side instrument panel.... but which wire it shorted in this mess!!!!



Well, I keep following the signal...
The receiver has a pair of LEDs that point you which way the short is..

And it leads me to the drivers side trim..
I check the Cigar lighter, but the signal is weak..
I was baffled...
Soon, I was pulling out the cup holder, seat switch, and Cigar lighter to gain access.
I looked down into the trim panel and I see an Orange wire that runs along and disappears rearward.
I put the receiver close to it, and it goes NUTS!
This is the wire... I am looking at it and my mind says ROOF HORNS...
I go outside and get the ladder, and climb up...
No signal!
Back inside, I look again...
I cant see where that orange and shorted wire goes...
I decide to take the trim off.

I take out the very first screw...
Suddenly I hear the tone of the ECT2000 change..
I look at the box, and the unit is telling me I suddenly have an OPEN Circuit, not a short!
Thats odd...
I screwed the screw back in, and there it goes... back to shorted with a change in tone and LED..
Baffled..
I undo the screw again, and the tone changes...
Using the receiver I test the orange wire... and I pull it..
It suddenly comes free!
I pull it out, and guess what?
Its the feed wire for the drivers side 12v receptical!
The screww had pirced it perfectly dead center at some time before I bought it...
Look at the picture...
I ulled the wire out to show the truth!
Could you do that if you tried???




The two Fiam horns are working now!
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Old 06-06-2012, 11:42 AM   #857
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Some more polishing... almost done with the first hit..
Stll a little swirly, but I think its an improvement...

When I bought it...'


Now...


Even got a shine on the Banks tip!
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Old 06-06-2012, 11:50 AM   #858
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Coming along, my friend, looking (and working) better and better.
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Old 06-06-2012, 01:55 PM   #859
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Thanks Mike!

So, I have a question.....
Those of you that have the Trumpet horns on the roof...
How was it set up originally?
Was there only the Roof horns, or Roof and underhood?
If the latter, did they both sound, or was there a toggle switch?

Mine are DOA..
So, I pulled them off to reseal/polish the area...

When I got them home, I did some research and it seems that maybe they can be fixed..

So here we go...
Sparton Model U Trumpet Horn restoration attempt!





There was this lump of gunk in one...



I started on the shorter one... pulled the trumpet section off the working end..
The Ground connection was so badly rusted I could not get a connection, so I used the body for a ground instead..


Video of the test... it is making a slight sound!



Research told me rust in the diaphram body is the problem...
A shake of the unit confirmed... sounded like it had a lot inside!

Next is to drill out the rivets..



Seperated, here is the outer half of the trumpet and the outer half of the diaphram... not too bad... Note the critical gasket...

But the inner half is a mess...


Left this bit soaking in Derust solution for now...
Lets see if it can be saved!
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Old 06-06-2012, 02:03 PM   #860
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Brown on tire is age and sun related, can't buff it out;-(
Check the date of manufacture, I have a michelin with the same signs and when I looked real close I could see the hairline cracks. 16 (week) 03 (year) so it is time to replace as Michelin recommends 8 yr life expectancy. I did the rears last year when 11 yr old one blew at a traffic light while we were stopped in front of a tire dealer.
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Old 06-07-2012, 08:42 AM   #861
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1983 31' Airstream310
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I replaced my dual horns last year with "The Persuader Extreme" by Wolo. They were a perfect match for my original horns so I could use the roof mounts. I got them on-line from Car Parts, Auto Parts, Truck Parts, Supplies and Accessories - Autobarn.com

They were around $100.00 work great!
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Old 06-07-2012, 10:19 AM   #862
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I know Dave...
The fronts I got when I bought it, so now 2 years old, what was on the front is now on the tag, so I think they are now 4, and the drive axles I think are 6 now, but need to check.

Thanks for the Info Mike, I know where to go if I fail in my restoration...

The horn body has soaked in derust for a few hours and looks much better.
I am planning to clean the points on it with some emery paper or a points file.... Ah, the good old days... then reassemble it and see if there is any joy..
The paper gaskets between the diaphram and body are unavailable, so I will have to make some..

So yesterday was a mixture of failure and success...

I got some more of the body buffed out, and also managed to finally strip the genset door... Not sure what the scoops are made of, but it would not polish, and remained steadfastly satin! Maybe I will leave them like that, as I kinda like the contrast!
The upperdoor was tricky too... cos its so flimsy, but I managed to get a bit of a shine on it.



Now onto my failures...
In polishing the Cab roof... I made an error..
As I pulled back with the compounding buffer spinning at 3000rpm to reload with Black Bar, I forgot the bodyside mounted Radio Antenna was right by my elbow.... In the blink of an eye, I turned it into a coathanger!
Not a huge deal, as it was not pretty, but I since realized it was also a Toploaded CB antenna too...
Too embarrassed to post a pic!
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Old 06-07-2012, 10:37 AM   #863
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Maybe I will do away with the the dual antenna and also the splitter box I found under the dash and get a K40 or Firestick and get the job done right!



Now onto my other failure...
My LED Tail lamp conversion..
Now let me make the statement right now that electrics are not my strongest suit...
I tested the lights on the bench, and they worked fine...
Lets recap...
102 LED 1157 dual output bulb.. Painted the cans with chrome paint



But when I put them in the Airstream, I can't get them to work properly..
I get brake or blinker function, but no lights...
I tested the sockets and they work fine... and with normal bulbs all is normal, but as soon as I put the LED's in, I get only brights...
Puzzled...

Good news is that with the painted cans the bulbs are still much brighter!
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Old 06-10-2012, 05:10 AM   #864
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Well, despite trying I have been unable to get the Horns working properly...
They are both making much more noise than before, but not what they should be doing... I have put them away for now... maybe someone knows how to fix them?

I found these 2 websites dedicated to repairing Sparton or similar Horns ...
Trumpet horn restoration
Horn Repair

Yesterday, I did the final prep for the storage move.
Everything was packed for travel, and as a result, I was able to fully test the brakes in anger.
The beast stopped clean and straight, and I whilst I did not lock the wheels on the blacktop, I could on the gravel.

A few days ago I spotted some coolant dripping from the passenger side mounted heater box area under the hood, but I was unable to replicate yesterday, but will be keeping a close eye on the thing... maybe it was a hose...

Today, I am going to take a shot at building an Adaptor Plate to allow me to mount the Velvac mirrors to the original mounting holes...
More later!
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Old 06-10-2012, 10:09 AM   #865
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Quote:
Originally Posted by Keyair View Post
Well, despite trying I have been unable to get the Horns working properly...
I fooled around with mine until I did the adult thing: bought fresh horns. Plus, they are sooo shiney!
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Old 06-10-2012, 11:19 AM   #866
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Yup, I know I will have to, but the $$ are needed elsewhere for now...
I have put them under my Bench in the "Fix or toss box".
I want some of those Train Horns on the roof one day!

Had an interesting day yesterday...
I was doing the interior tidy up ready to move... and heard a voice calling "Hello?"..
Came out, and there was a couple of nice Ladies waiting for me...
They were over getting their stuff ready to move too, but had spotted my M/H and both are Airstream fans!
I gave them the full tour, and we chatted for ages!
One of the Ladies has a 31' Airstream Trailer in the midst of a resto it seems.
Great people and we are now connected!

I have a question/statement...
This thread is getting long, and only gonna be longer, as I tend to use it as a blog, and I hope I am not boring people with my trivia!
I thought it was better to keep my whole story in one place...

Is that ok with most of you??
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Old 06-10-2012, 11:40 AM   #867
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Quote:
Originally Posted by Keyair View Post
Is that ok with most of you??
Yup, as long as you can handle good-natured jabs to the ribs every once in a while.
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Old 06-10-2012, 12:43 PM   #868
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Saint Petersburg , Florida
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Steve, please keep all of your trials and tribulations right here. At least this way I know which thread to visit FIRST, before venturing out to the others, lol
Thanks, Derek
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