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Discussion Topic:
'48 Super Deluxe Convertible Two Questions
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croftonfoxes |
10-11-2018 @ 1:31 PM
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Member
Posts: 18
Joined: Oct 2018
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Hello Everyone, I am new to owning a restored '48 Super Deluxe Convertible and new to the club. I have two quick (I hope) questions: 1) The knob on my gear selector is kind of beat up and I purchased a replacement from Dennis Carpenter, but for the life of me, I cannot figure out how to get the old one off! Any ideas? 2) The brakes on the car are relatively (within the last year or two) new and work surprising well for 4 drums and no power assist. However, I have noticed a rather pronounced pull to the left when I apply the brakes initially. The faster I am going and the harder I apply, the worst the pull. Is this something that I can adjust with the two brake shoe cam bolts on the backing plate of the brake, and if so, what do I do? Thanks!
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cliftford |
10-11-2018 @ 3:56 PM
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Senior
Posts: 845
Joined: Jan 2014
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Brakes: could be adjustment,[most likely] leaky wheel cylinder , or grease on shoes. Try adjustment first. Look for previous posts on this subject. I believe the shift knob is pressed on and will have to be cut off.
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Drbrown |
10-11-2018 @ 9:37 PM
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Senior
Posts: 563
Joined: Nov 2013
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Adjustment: See factory manual; there is a procedure. Clifford offers good advice re checking for brake fluid or grease on shoes/drum. On the far side, it could be possible that the left drum surface is out-of-round or the new shoes were not "arched" to match drums. This could be checked (for instance) by applying carpenters blue line chalk to the shoe surfaces, installing the drum, rotating it by hand, removing the drum and looking at how the shoes contact the drum. Knob: I agree probably must cut old off (a Dremel hobby saw comes in handy). "J-B Weld" two-part epoxy works great on these situations. Widely available.
This message was edited by Drbrown on 10-11-18 @ 9:48 PM
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TomO |
10-12-2018 @ 6:53 AM
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Senior
Posts: 7244
Joined: Oct 2009
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In addition to the items that could cause pulling is a bad flex hose going to the right front wheel or a wheel cylinder that has corrosion causing the wheel cylinder piston to stick. I would check the brake fluid in the reservoir by using a turkey baster to remove some fluid and check the color. Good DOT 3 or 4 brake fluid should be a clear fluid with a tan cast. DOT 5 fluid should have a purple cast. If the fluid is dark, it is dirty and the system should be flushed. Get in touch with the previous owner and ask him if he used conventional or silicone brake fluid and flush the system with fluid from a new can of fluid of the same type. If the PO is not available, you can do a test on the brake fluid by putting a few drops of the brake fluid on a piece of painted metal (I like to spray some paint from a rattle can and let it dry for at least a week and use that sample for the test) and letting it set overnight. The DOT 3 or 4 fluids should lift the paint and the DOT 5 fluid should have no effect. DOT 5 fluid is slippery and the other fluids become sticky after being in the air for a while. You might consider replacing all of the rubber parts in the brake system, if you do not know when they were replaced last. These parts last about 10 years on a collector car with conventional brake fluid. They last somewhat longer on systems with silicone brake fluid.
Tom
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supereal |
10-14-2018 @ 1:21 PM
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Senior
Posts: 6819
Joined: Oct 2009
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As my friend TomO said, replace all the rubber brake hoses, including the one on the torque tube feeding the rear brakes. These hoses have a problem of the inner lining coming loose from the sheath and partially or fully blocking the hose. Just last week at our shop we found the same problem on an older Chevy pickup truck. Brake fluid is alcohol based and will attack old rubber. The aluminum pistons in the wheel cylinders will also corrode and prevent movement.
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bigvince |
10-19-2018 @ 10:39 AM
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Member
Posts: 60
Joined: Oct 2009
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Had the same problem on my 48 wagon only the right side. Bled the brakes and now work fine.
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croftonfoxes |
01-31-2019 @ 2:46 PM
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Member
Posts: 18
Joined: Oct 2018
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Thank you very much everyone! Very helpful advice! Would help though if I would check back more often! Sorry... Oddly enough, the brakes sorted themselves out and work very well... No idea why, but I will take it! Regarding the shift knob... Yup, cut it off and JB weld the new one... Right as rain now! Thanks so much again!
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Drbrown |
01-31-2019 @ 9:39 PM
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Senior
Posts: 563
Joined: Nov 2013
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Glad things worked-out for you. Since you recently purchased the car, maybe it had been sitting and just needed some exercise to get the bugs out. I work on a fleet of five family cars. They all have disc brakes but two of them have brake calipers that like to bind when inactive. So first thing I do is several semi-panic stops in the first few hundred yards. After that they loosen-up and quiet down.
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supereal |
02-06-2019 @ 11:25 AM
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Senior
Posts: 6819
Joined: Oct 2009
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Pull the drum from the side that is pulling to be sure that the shoes are correct. The front shoe is the short one, the primary shoe. The rear shoe is fully lined. We often find them reversed. I agree with the others regarding replacement of all rubber hoses in the brake system. Old hoses commonly separate the outer part from the liner. As these old vehicles have only a single system, instead of today's double type, it is very important that there be no leaks or clogs anywhere. As to the shift knob, once you break or cut it off, a dab of JB Weld in the hole will keep it in place.
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