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  1. 59840Surfer

    Can anyone tell me what this is??

    Brake System Design and Proportioning Valve Behavior: The proportioning valve’s role in dual master cylinder systems (introduced in the U.S. around 1967 for safety, per federal regulations like FMVSS 105 <NOTE: FEDERAL here>) was to ensure balanced braking and detect hydraulic failures. When a...
  2. 59840Surfer

    Can anyone tell me what this is??

    C'mon, Butch --- you didn't say that did you? --- because it's not the same system. Surge brakes are self-contained ON the trailer tongue. Hydraulic-over-Electric controllers are inside the cab so the driver can manually apply the trailer brakes. Pay attention --- it helps a lot.
  3. 59840Surfer

    Can anyone tell me what this is??

    It was not uncommon to have that hydraulic-over-electrical controller, drip on your leg or shoes; they were however, the only thing going for lighter vehicles, although surge brakes - which are NOT integrated into the vehicle's hydraulic brakes, were used occasionally. Tapping into a...
  4. 59840Surfer

    rear tailgate power window motor Blazer/suburban

    Not just a few times I considered going the other way - electric to manual. One thing I do is use some long-set epoxy to lock the drive ends into the motor and the drive unit ... just don't get any INSIDE the drive! It seems this is where the basic failure is --- if it pops out, that blue...
  5. 59840Surfer

    rear tailgate power window motor Blazer/suburban

    You can buy them bigger and sand/file them smaller - wear gloves and wear a dust mask!
  6. 59840Surfer

    Can anyone tell me what this is??

    Hmmmmm .... a label I would wear proudly. Rules are good --- that way you know where you stand and how that vehicle coming at you at 60 MPH would hit you at a combined speed of 120MPH if you are driving at the same speed, but something failed or fell off - whatever! Knowing that they are...
  7. 59840Surfer

    Can anyone tell me what this is??

    Tell me how this is even taught in "Hydraulics 1A" and let me know if YOU know how it works ... OK? It uses brake fluid in a dead-end circuit to activate a plunger that moves a multi-fingered resistor to activate the trailer brakes. IT USES FLUID VOLUME --- it is illegal on any vehicle...
  8. 59840Surfer

    Rear Brakes Locking Up

    I know I inspected a bunch of them and to tell you the truth --- I do not remember seeing cross-fed brakes on any domestic vehicle. Some Euroboxes did it --- Citroens, Vauxhauls, Opels, a few Fiats and maybe the Gordinis --- but I do not remember any domestic cars doing that. If I'm wrong...
  9. 59840Surfer

    Steering does not self center.

    "In the air" and "on the ground" resistance from the ball joints is a bad call - there are dynamics involved --- eg, the vehicle weight alone is the biggest dynamic to consider. Let an alignment shop handle the high-center setting in the steering box - it should be part of a good alignment...
  10. 59840Surfer

    Rear Brakes Locking Up

    Never push a brake pedal to the floor. If the master is contaminated - it can pack crap in the forward piston seal and ruin it. Always assume the master is contaminated and put a 2x4 or 4x4 under the pedal to keep your "helper" from jamming it all the way down. Good help is hard to find...
  11. 59840Surfer

    Can anyone tell me what this is??

    You're 100% wrong. The small cylinder-piston in the controller takes fluid to make it travel. This is not the same as brake wear --- it's totally out of that realm --- totally. If it takes fluid, it decreases the ultimate volume sent to whatever side of the brakes in which you've installed...
  12. 59840Surfer

    Drip Rail Sealant

    I have used windshield polyurethane glue on mine. Do NOT get it on any part of your (human) body. I know of what I speak here.
  13. 59840Surfer

    Computerized carb

    At least it didn't say: "Boeng Space Age Reliability"
  14. 59840Surfer

    Waen 2990 manual lockong hubs

    Bearing grease in the Warn hubs is never a good idea; they like a less viscous lubricant so they can move freely --- and they don't "move" once they are in position anyway --- so grease isn't even needed, although something to keep them rust-free would be nice. I have seen everything from...
  15. 59840Surfer

    Can anyone tell me what this is??

    The problem with the hydraulic brake controllers is that they "stole" some fluid from the discharge of the master cylinder, and whatever position they were installed in (front or rear) suffered a bit for pressure and application volume. Initially, they were designed for the old single-system...
  16. 59840Surfer

    Help! My coolant temp heats up fast in idle or slow-moving traffic (around 210F+) then decreases when I start driving (around 170F-190)

    To keep this simple --- even though it looks complicated --- it can be done to any dual fan system with the addition of one more coolant temperature sensor and some relays and a bunch of wire --- but I'll post a drawing of the way it should go for a two speed dual fan system ... 1. #s 1 & 2...
  17. 59840Surfer

    Help! My coolant temp heats up fast in idle or slow-moving traffic (around 210F+) then decreases when I start driving (around 170F-190)

    First --- what is your intention? Do you want then to run just one speed or would you like them to run as two speed fans?
  18. 59840Surfer

    Overheating 87 TBI

    I've written several articles about GM Drop-Center caps and I am not want to do it again unless there's some specific questions. I'll do a Copy/Paste on one I wrote a few years ago ... instead ... GMs all use a "drop center" cap in that the little small metal disc in the center of the cap...
  19. 59840Surfer

    Overheating 87 TBI

    Yeah --- they are fine for a while. Then they leak when the system is cooling, the liquid condenses and draws a vacuum in the system. The LeverCap is a weak spot and every time one of them came into a radiator shop I knew very well, that the owner would come out from behind his desk, rip it...
  20. 59840Surfer

    Weird solenoid looking thing

    There is an ECS Canister Filter listed --- year is important, but for the most part, they have some listed as (and there's a lot of crossover in various models for the same part): Standard Motor Products (SMP) Vapor Canister Filter fits Chevy K30 1977-1986 61KGJY Just pull it out and push...
  21. 59840Surfer

    Overheating 87 TBI

    Because they don't allow the system to hold a suspended vacuum after shutdown. ♦ This is important so the surge or overflow tank can supply coolant - in a solid stream of coolant with no air - back into the engine. I have had boneheaded customers let me persuade them to take the Lever Vent...
  22. 59840Surfer

    Help! My coolant temp heats up fast in idle or slow-moving traffic (around 210F+) then decreases when I start driving (around 170F-190)

    I tried the Hayden HD and my gas mileage got a big 3MPG hit beside the intense roaring. I ultimately went to the dual electric fans and wired them up like my '05 GM trucks --- low voltage and high voltage (6V v 12V) and got my mileage back PLUS! FTR ---> Newer GMs with dual fans, use a...
  23. 59840Surfer

    What locker shall I go for?

    I totally agree - with the same results. MY Eaton works in Reverse as well as Forward --- I cannot see how it could be any different ... It is a worm-drive and it's the difference in speed from the spiders to the carrier that would lock up in either direction.
  24. 59840Surfer

    Overheating 87 TBI

    PS --- you aren't using a Lev-R-Cap are you? Please say "No!"
  25. 59840Surfer

    Overheating 87 TBI

    I just fixed another GM with the same problem. The owner did everything just like you which makes it very hard to diagnose when they start installing parts like a monkey with its hair on fire and once everything is done, the problem still exists. Go back to basics .... assuming the...

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