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#1 |
Senior Member
Join Date: Jul 2018
Location: Spring Grove, Illinois
Posts: 1,371
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Just recently I repainted my horn and used all new hardware as well. Well, my horn started acting up by not stopping when the button is released. So I checked to see if the horn button was stuck or something in the light switch was buggered up with no luck. So I pull the horn motor cover, everything looks normal. Then on accident I accidently touch a screw to the motor frame and a spark happens because it shorted. I have a lightbulb moment and test my theory with the horn cover screw and it turns it out it was too long and was contacting the frame shorting out the horn and making it turn and turn. I took a few threads off and solved the problem. The screw was a repro part that was too long I guess.
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"The more things change, the more they stay the same." |
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#2 |
Senior Member
Join Date: Apr 2018
Location: Mebane NC
Posts: 2,415
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That exact thing happened to me with a horn cover screw I just bought a few weeks ago as part of the Bratton's "Pro Pack Sparton Horn Rebuild Kit." I thought maybe my cover was a non-standard size. I ended up just looking through my parts cubbies and finding a screw of the right size and length.
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#3 |
Senior Member
Join Date: May 2010
Location: new britain,ct 06052
Posts: 9,397
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Known factor for a loooong time.
Paul in CT |
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#4 |
Senior Member
Join Date: Apr 2018
Location: Mebane NC
Posts: 2,415
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Maybe if we all wrote to the vendors they'd stop selling it. I just thought it was something wrong with my car; if I'd known the part was faulty I would have complained.
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#5 |
Senior Member
Join Date: May 2010
Posts: 2,622
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1. My Sport Coupe had a split lock washer on that screw when we got in 1962 ... it never shorted.
I could be wrong but as I remember the lock washer was captive on that screw. Screw had rolled threads only on the bottom 1/3 of screw so washer would not fall off. Not sure they had this setup originally. I think that screw is still on the horn. 2. I see that Bratton's kit has a washer included according to the photo. ![]() ![]() I wonder if they short if washer is installed? https://www.brattons.com/pro-pack-sp...build-kit.html UPDATE: I guess that I remembered wrong ... no captive but does have shoulder threads and thin lock washer. PHOTO of screw ... Last edited by Benson; 08-23-2019 at 09:07 AM. |
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#6 |
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Join Date: May 2010
Location: Englewood, Colorado
Posts: 1,372
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Steve @ Bert’s |
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#7 |
Senior Member
Join Date: Apr 2018
Location: Mebane NC
Posts: 2,415
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But why go to the trouble of spec'ing a shoulder bolt for this application, as Ford apparently did, and then making the threaded portion long enough that it could be screwed in far enough to contact the brush? Tightening the cover too far should be impossible, if the overall length and shoulder length of the bolt are correct.
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#8 | |
Senior Member
Join Date: Jul 2018
Location: Spring Grove, Illinois
Posts: 1,371
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"The more things change, the more they stay the same." Last edited by chrs1961815; 08-23-2019 at 05:17 AM. Reason: Error |
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#9 | |
Senior Member
Join Date: Apr 2018
Location: Mebane NC
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Haha, I got this email this morning from Bratton's after I complained:
Quote:
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#10 |
BANNED
Join Date: Apr 2017
Location: Sacramento
Posts: 1,262
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Brattons is a quality vendor who stands behind what they sell.
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#11 |
Senior Member
Join Date: Jul 2018
Location: Spring Grove, Illinois
Posts: 1,371
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It is a little screw that can be fixed with a little editing. Not worth the trouble for such a small part other than giving them feedback.
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"The more things change, the more they stay the same." |
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#12 |
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Join Date: May 2010
Posts: 2,622
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The purpose of specifying the shoulder screw in the first place is so that the screw bottoms out BEFORE it can be tightened too much to bend the cover and/or short out.
The correct screw is not a simple big box screw without a shoulder. Last edited by Benson; 08-23-2019 at 11:29 AM. |
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#13 |
Senior Member
Join Date: Apr 2018
Location: Mebane NC
Posts: 2,415
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I should add that the screw pictured below, from Bratton's, appears to have the correct amount of shoulder vs thread – the problem was that the screw they shipped me and chrs1961815 is not this screw.
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#14 |
Senior Member
Join Date: Mar 2014
Location: Midland Park,N.J.
Posts: 1,108
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I had the same problem awhile back,bought it from Brattons but never complained.
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#15 |
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Join Date: Mar 2012
Location: Fairfield, Virginia
Posts: 615
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Sounds like the vendor responded correctly WHEN notified.
Ted |
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#16 |
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Join Date: Aug 2011
Location: Eagle Bend, MN
Posts: 2,033
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Sometimes a person is asked to use their own thinking a bit when repairing things. A simple careful look is all that's needed. Where I used to work as an electronics service tech we referred disparagingly to the "parts replacers" vs the technician. We are lucky to have the parts available for our 90+ year old cars that we have. Use your head, yes some parts need a little reworking, some maybe more than that but at least they are reasonable priced and widely available.
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"There are some that can destroy an anvil with a teaspoon and shouldn't be allowed to touch anything resembling a tool." |
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#17 |
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Join Date: May 2010
Location: Eastern Tennessee
Posts: 11,578
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Very true statements!
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#18 | |
Senior Member
Join Date: Jul 2018
Location: Spring Grove, Illinois
Posts: 1,371
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