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11-13-2023, 08:37 AM | #1 |
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Ford Lockheed (1) Brake Adjustment Aid?
What do you guys think if machining a .625" - .750" hole in the face of the brake drum in line (circumference) with the end of the shoe contact face. This would allow viewing from the front of the drum while installed to witness the brake shoe contact with the drum. It could be rotated then to observe the contact along the full peripheral of the shoe, making the shoe adjustments quite simple, and accurate. This would greatly simplify, I believe, setting up the eccentric adjusters on 39-41 types. The 42-48 types are simpler to adjust so this may not be deemed as useful as the previous type, but it would still make this adjustment procedure much quicker and accurate.
For this to work, new linings, or all having the same thickness, and the drum inner diameter the same on all drums would be necessary. In my case, new linings (shoes) and drums are being installed. This would require only machining one drum, as it could be used as a standard gage on the other three. When all wheels were set up, the hole could be plugged with 100% silicone caulk to hold off water and dirt if that would be an issue. I remember on Bendix brakes there was a oval knock out in either the drum face or backing plate for adjusting the star wheel. This hole in the backing plate sometimes had a rubber plug installed, but most of them were just a hole....didn't seem to hurt anything.... |
11-13-2023, 02:27 PM | #2 |
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Re: Ford Lockheed (1) Brake Adjustment Aid?
If it ain't broke, don't fix it! And I don't think it is broke.
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11-13-2023, 07:32 PM | #3 |
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Re: Ford Lockheed (1) Brake Adjustment Aid?
So how is your suggestion helpful? I was asking a thoughtful question. If this is the best you can do then don't... By the way still waiting to see how you plumbed wheel cylinders on the top at 0 degrees on model A's with over axle spring mounts......I had sent illustrations of what I had done, the intent here is to share information to improve procedure and solve problems, the sarcasms do nothing toward this end.....
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11-14-2023, 08:53 AM | #4 |
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Re: Ford Lockheed (1) Brake Adjustment Aid?
8, I think you are doing a lot of unneeded work. The brakes have been working good for almost 100 years.
As a wise man once said "if it ain't broke, don't fix it". Another wise man said "don't go looking for problems". |
11-14-2023, 09:12 AM | #5 |
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Join Date: May 2010
Location: Baxter, MN.
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Re: Ford Lockheed (1) Brake Adjustment Aid?
I believe Jim and old31 have been around model A's enough that they know what they are talking about.
It seems as though most here are certainly not absolute restorers but "if it ain't broke, don't fix it" seems to be the norm. |
11-14-2023, 07:44 PM | #6 | |
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Re: Ford Lockheed (1) Brake Adjustment Aid?
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Quote:
Look at the advancements man has made in the last 100 years....I guess people do not like change, or any purveyor of it. |
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11-14-2023, 07:53 PM | #7 | |
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Re: Ford Lockheed (1) Brake Adjustment Aid?
Quote:
Guess I have said my bit here, would welcome any constructive criticisms or suggestions, especially from those who may have found a better procedure to follow setting up this style brake, or wish to interject what they know not to work from their experiences. I guess I can make this analogy in that regard "if it did not work in 1940, then the same experiment will have the same results today".....But first lets make sure it is the same..... |
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11-14-2023, 09:08 PM | #8 |
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Re: Ford Lockheed (1) Brake Adjustment Aid?
I would not go there.
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11-14-2023, 10:17 PM | #9 |
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Location: Vancouver B.C.
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Re: Ford Lockheed (1) Brake Adjustment Aid?
I have those on my AV8, simply because I wanted hydraulic brakes and the parts were available. I find them easy to adjust as they are. When I first installed them I covered the shoes with sidewalk chalk (borrowed from my grandkids) and it was easy to see how they were contacting the drums and where a little had to be ground or sanded off. They stop very well now. I believe the the earlier style have eccentrics on the lower pivot point that might permit more adjusting, but mine do not so must be the later style. I don't see how a view hole would help with adjusting. You would probably have to use a feeler gauge to measure any gap. I would think you could do it just as well by feel. Good on you to at least consider the possibility.
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11-15-2023, 09:49 AM | #10 |
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Location: Denver Area
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Re: Ford Lockheed (1) Brake Adjustment Aid?
8EL, I would worry that you are introducing an out of balance condition to your brake drum. The hole would need to give visibility to the contact of the shoe to the drum and would therefore be at the outer edge. This would be the worst for imbalance. I am not familiar with these early hydraulics. I would think you would want to use a "tool drum" for your approach, then store the tool for later use and run 4 undrilled drums. Once you commit to a "tool", then you can make a much bigger window to see inside but this all seems like a tough slog.
Maybe someone has a method that provides good results without a 5th drum? I think the starting point is to have the shoes "arced" to the drums, then adjust when assembled? Like I said, I am not familiar with these but it is an interesting question. |
11-15-2023, 07:49 PM | #11 | |
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Re: Ford Lockheed (1) Brake Adjustment Aid?
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11-15-2023, 07:55 PM | #12 | |
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Re: Ford Lockheed (1) Brake Adjustment Aid?
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11-15-2023, 08:00 PM | #13 |
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Re: Ford Lockheed (1) Brake Adjustment Aid?
So you guys employ a common practice of sanding the new linings to fit the drum? Are you doing this by hand (I would think)?
Thank you all so much for the constructive suggestions, much more helpful than the original responses, much appreciated....This provides value and improves what is being undertaken as it should be..... |
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