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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | I've got this over in electrical but taint heard a toot from anyone, thought I'd try it here.
I've got a ’50, 3604 that has one of those old style horns. Since I had it off to clean behind it and straighten the bracket, I figured I’d go ahead and pull it apart and do the rebuild on it also. Two problems surfaced as soon as I took the cover off.
1.There is a capacitor across the points just as there is in the distributor, to keep the points from arcing. Capacitors have a fairly short shelf life, inexpensive paper caps are the worst. So, I’m sure that the cap is bad. This is a really inexpensive cap cheaply made without an outer shell. Problem? What is the value? To big it burns one side of the points, to small it buns the other.
2.The second thing that I noticed is that when the armature is against the pole it should be opening the points, but it taint! Has anyone ever seen a gap setting for the horn points??
While I’m waiting for that answer, that I know will come, I’ll blast and paint the shell.
Denny Graham
Sandwich, IL
Denny G
Sandwich, IL
| | | | | Joined: May 2005 Posts: 44 Wrench Fetcher | | Wrench Fetcher Joined: May 2005 Posts: 44 | Just how much ya plannin' to use that horn? Capacitors don't cost a lot, so why not buy a few, observe the arching with one then another, and adjust from there.
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| | | | | Joined: Nov 2006 Posts: 9 Junior Member | | Junior Member Joined: Nov 2006 Posts: 9 | I read your post on electrical hoping to get some info on my "horn" posting. It looks like I need to take mine apart as well so it may be on my bench tmro AM. My restoration reference guy just told me to get a voltage reducer. There may be more to the issue. I'll let you know if I discover anything that could help you. | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | Denny,
Here is a previous post stating the value of the capacitor as .56 mfd. This is good because I have not done this yet.
http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=3;t=002168#000000
Fred | | |
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