When disassembling a brake valve it's not uncommon to find an internal component that can't be easily pulled or pushed out using mechanical pressure. Heat from a propane torch coupled with compressed air sometimes works, but when can you do when compressed air doesn't get the job done, either? I've found that using hydraulic pressure will typically do the trick, and it's relatively easy to apply hydraulic pressure using a common grease gun. The challenge is connecting your grease gun to the ports on your brake valve. How can it be done?
This document describes how to rebuild the 1970 - 1971 Mopar 3466156 and 3466157 brass metering/hold-off brake valves manufactured by Kelsey-Hayes using a new seal kit available from Muscle Car Research LLC. The same basic part was also used on 1968 - 1969 full-sized Ford police cars and taxis (part number C7VY-2B161-B), 1970 - 1971 Ford Galaxies and Thunderbirds (part number D0AZ-2B161-B) and 1968 - 1972 Ford F250 and F350 trucks (part number C8TZ-2B161-A). Tools needed:
When faced with a leaking brake valve, many adventurous home mechanics follow the same path I did and wonder if it's possible to rebuild the valve. Many valves can indeed be rebuilt, but it's important to understand that it can't usually be done using seals found at your local parts store. That's because the Nitrile/Buna-N or Viton (a fluoroelastomer) rubber compounds used in o-rings and other seals found in "over the counter" kits aren't compatible with automotive brake fluid - they're designed to be compatible with petroleum-based fluids like engine oil and gasoline!
This document describes how to rebuild the 1996 - 1997 Ford Thunderbird and Mercury Cougar brake pressure control valve (marked F6SC2B091CA) using a new seal kit available from Muscle Car Research LLC. Tools needed:
This brake pressure proportioning valve (Ford calls it a "brake pressure reducing valve") was removed from a 1997 Ford Thunderbird. It is marked "F6SC2B091CA"; the service part number is F6SZ-2B091-CA. Original applications include the 1996 and 1997 Ford Thunderbird and Mercury Cougar. You can click on the pictures below to see larger versions of the images.
This document describes how to rebuild the 1970 GM 3983040 brake pressure distribution switch using a new seal and spring kit available from Muscle Car Research LLC. Tools needed:
This Weatherhead brake pressure distribution switch was removed from a 1970 Chevrolet Camaro. The original GM part number for this part is 3983040. I have not found any references to this part being used on other GM vehicles; please contact us if you know otherwise. You can click on the pictures below to see larger versions of the images.
Muscle Car Research is proud to announce that West Coast Classic Cougar of Salem, Oregon, has joined our network of authorized dealers. Please check out their web site and give them a call when shopping for your classic Mercury Cougar needs.
The Muscle Car Research store will be closed from Monday 10 November through Saturday 15 November. We will reopen on Sunday 16 November. Orders will be filled and email and telephone messages will be returned after the store reopens.