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brake upgrades
https://slantsix.org/forum/viewtopic.php?t=10524		 Page 2 of 2
Author:  sandy in BC [ Fri Oct 01, 2004 2:14 pm ]
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Twice in the last year I have had deer run into the side of my vehicle. Both times caused enough damge to prompt insurance claims. The second time it came right through the back window of my wagon. First time it broke the driver door glass on my sub (as well as smashing the rear quarter) Scary $#!+!
Author:  stinky mctinkerpants [ Fri Oct 01, 2004 10:17 pm ]
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sounds like someone needs to pass out some of those dear warning whistles around here. do those even work?
maybe its the dot 5 killing your seals, i have heard that can happen with dot 5 on older cars, never tried it myself. A brick makes a good e-brake. the tough part it applying it while you are moving.
Author:  Dartvader [ Sat Oct 02, 2004 5:58 am ]
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Lou, I did order the adjustable proportioning valve from the TSM folks. Really a great guy over the phone. He is a steet rod guy himself, and had lots of real world experience. He bypasses the combo valve too on all his cars. He says the combo valve is supposed to delay the front brakes a few milliseconds, but he has seen no value to that. They developed many of those kits for their own car projects. I will may not install the new brakes until after you and I have done some power tuning next week. I am concerned about getting hung up somewhere in the project and not being able to drive it for your visit.

Thanks for the spelling lesson. My "Dear" is an English teacher, so I get a fair amount of training at home. My excuse is I'm dyslexic, a terrible typist (I type way too fast), plus I have a hard time seeing the errors on the computer monitor. I am always suprised at the mistakes I see when I print out a letter that looked perfect when proof-reading the monitor. The up side is that research has proven that dyslexic people are more creative than average: the kind of folks who would put a turbo on an ancient old slant six motor. :wink:
Author:  ihwilly [ Sat Oct 02, 2004 9:29 am ]
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You harp on the proportioning valve and I will harp on one wheel locking up.If one side always loks up first or locks up easily, there seems to be a problem from the rear flex line back.
Author:  Dart270 [ Mon Oct 04, 2004 6:55 am ]
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Yep, Skip is a great businessman in that he takes time with you and sells a good product.

Flex lines can cause all sorts of funky brake problems if they clog or collapse or stretch, I agree.

Lou
Author:  Dartvader [ Tue Oct 05, 2004 8:24 pm ]
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The right rear locks up because quite some time ago the axle seal leaked oil onto the lining. The seal was replaced on both axles, and the lining cleaned. I bought new linings intending to install them, but decided to go disk conversion instead. I will keep the new linings for my other Dart which has the same rear brakes.

I am excited about getting the disks on the rear. Aside from issues of fade, my understanding about the advantage of four wheel disks over disk/drum applies to changing adhesion. You can make a disk/drum set up stop just fine with careful balance of the proprtioning valve, but if the road surface changes, (wet,oily,hot, colder,etc.), the disks and drums then respond differently then they did when it was dry. This is because the pressure upon the rotating assembly for disk brakes is not effected by the road adhesion. The drums, on the other hand grip better on dry pavement. As the shoes rotate in the drum, they reach a point where they begin to lock, and grab tighter. If the traction is better, this happens earlier in the braking process, because the shoes roatate sooner in the drum. On wet pavement, the disks will lock up before the drums, if they were biased to operate well on dry pavement. This is one reason there are so many accidents in the rain. I'll 'betcha' the car in question had combo drum/disks.
Author:  Dart270 [ Wed Oct 06, 2004 7:48 am ]
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You are absolutely right, Vader. I thought that rear discs wouldn't make much difference, UNTIL I put a set on my car and was amazed.

Granted, I like to drive "at the limit" fairly often, and that's where the discs shine.

Lou
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