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06-28-2012, 03:18 PM | #1 |
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1931 Model A Ford Roadster Door Latch Mechanisms
Two Questions:
1. It appears that the internal spring in the door latch mechanism is quite strong and that it will be necessary to "turn the door handle" when closing the door. Was this the original intent or was the original intent that the door could be "slammed" shut without turning the door handle? 2. From what I have read, the door latch mechanisms on this body style may have been installed before the body was painted, thereby being painted the body color. Was this really the case or were the door latches painted black before installation and installed after the body was painted? I would appreciate a response from anyone knowledgable and if you have a reference, that would be icing on the cake! Thank you! Robert Todd [email protected] |
06-28-2012, 04:59 PM | #2 |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
Robert, let me start by welcoming you to Fordbarn!
The door latch should be able to latch by a gentle push on the door handle. Repro door latches do not have the correct angle on the latch but even original latches are difficult to latch gently if the hinge pins are loose. 2nd, the body was in bare metal (body in white) with the latches & striker already installed prior to paint. |
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06-28-2012, 07:47 PM | #3 |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
Brent, were the dovetails and rubber bumpers added after paint?
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06-28-2012, 09:02 PM | #4 |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
Thanks Brent.
Hinge pins are new and the door latches are original and in very good condition having also been cleaned and lubricated well. Striker latch plates that bolt to the "quarter panel" behind the door are also original and with very little wear. Nevertheless the spring force to compress the latch slider "pin" in the mechanism is probably about 10 lbs. Given that it is a roadster and the quarter panels behind the doors are not as rigid as in a closed car, have you learned of any modifications to the angle on either the door latch slider pin or the striker plate that would improve the ease of closing the door s compared with the original? Good advice is always appreciated! Thank you! Robert Todd [email protected] |
06-28-2012, 09:13 PM | #5 |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
Yes, they fit nicely but still since it is a roadster, the quarter panels are less rigid than on a closed car and the spring force to compress the slider pin in the mechanism is about 10 lbs. even though the original latch mechanisms are cleaned and well lubricated. I would have suspected less fore to move the slider pin and hence close the door.
Any tricks you have learned in changing the "lead in angles" on either the either slider pin in the mechanism or the door striker plate that attaches to the quarter panel that would make force required to close the door less? Thanks! Robert Todd [email protected] |
06-28-2012, 11:02 PM | #6 |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
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Don't attempt to alter the geometry as there WILL be negative side effects.
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06-29-2012, 12:16 PM | #7 |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
Thank you Marco for your thoughtful and knowledgable reply.
Sincerely, Robert H. Todd [email protected]: |
06-29-2012, 01:30 PM | #8 |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
Pleasant memory: A blind man coming out of Bad Bud's Mini-Mart, stopped SHORT and said, "I HEARD A MODEL A DOOR CLOSE!" "May I touch it?" He then related all it's feaures to me, even the license # and inquired what brand the horn was and asked if he could honk it! Bill W.
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06-29-2012, 06:14 PM | #9 | |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
Quote:
Marco did you trim the door rubbers exceedingly to get such a door fit, or are the 30-31 doors designed better, or how did you get this result? |
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06-29-2012, 08:56 PM | #10 | |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
Quote:
It's not quite as close as the reflections make it appear but it's pretty close. I'm using original Ford rubbers as shown below. They are obviously thinner than repros.
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06-30-2012, 04:19 PM | #11 |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
the repros cause a lot of trouble, obviously that is why you used old ones. I find the repros very difficult to trim. Is part of the problem here that the originals were natural rubber and repros are vinyl, which is more inflexible?
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06-30-2012, 07:50 PM | #12 |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
I use a Dremel with a grinding wheel to trim. It works better than a razor blade.
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07-01-2012, 07:28 AM | #13 |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
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07-01-2012, 08:16 AM | #14 |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
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07-01-2012, 10:07 AM | #15 | |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
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Hellman & Friedman www.hf.com · Official site Focus: investing in management buyouts in media, telecommunications, financial services, technology and marketing. |
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07-01-2012, 03:18 PM | #16 | |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
Quote:
Mmmm, I'm thinking he means try Harbor Freight..... . |
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02-20-2014, 10:24 PM | #17 |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
Ya, harbor freight is what I thought too
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02-20-2014, 10:32 PM | #18 |
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Re: 1931 Model A Ford Roadster Door Latch Mechanisms
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