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testing Bendix Boosters

Started by hemi68charger, March 26, 2013, 08:01:26 AM

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hemi68charger

Hey Gang..
I have a sneaky suspicion that the booster on Daytona's got a leak. I just installed the Cheetah valve body in my Daytona and tested it while on jack stands. Going through the gears like usual, I apply the brakes. The booster (I'm assuming it is that), made a quick and gone whistle. It didn't remain with the brakes applied. Maybe it is a vacuum leak? I guess I could run the engine with the hose disconnected and the nipple plugged and see if it does it. If it doesn't, is there a way to isolate the booster to determine if it is bad? Also, I have a couple of spare Bendix booster in the attic. Can I "bench" test them too utilizing the vacuum source of the engine while it is running? Maybe get a long hose and connect it and fire up the motor and see if I "hear" anything?

Also, if it is bad, is there a company out there that has a good rebuilding service with a decent turnaround time?

Thanks..
T
Troy
'69 Charger Daytona 440 auto 4.10 Dana ( now 426 HEMI )
'70 Superbird 426 Hemi auto: Lindsley Bonneville Salt Flat world record holder (220.2mph)
Houston Mopar Club Connection

resq302

Brian
1969 Dodge Charger (factory 4 speed, H code 383 engine,  AACA Senior winner, 2008 Concours d'Elegance participant, 2009 Concours d'Elegance award winner)
1970 Challenger Convert. factory #'s matching red inter. w/ white body.  318 car built 9/28/69 (AACA Senior winner)
1969 Plymough GTX convertible - original sheet metal, #'s matching drivetrain, T3 Honey Bronze, 1 of 701 produced, 1 of 362 with 440 4 bbl - auto

Mopar Nut

"Dear God, my prayer for 2024 is a fat bank account and a thin body. Please don't mix these up like you did the last ten years."

hemi68charger

Cool, but is there a way to test a booster before you ship it off? I want to verify mine isn't malfunctioning and see if one of the others I have had for a long time are good....
Troy
'69 Charger Daytona 440 auto 4.10 Dana ( now 426 HEMI )
'70 Superbird 426 Hemi auto: Lindsley Bonneville Salt Flat world record holder (220.2mph)
Houston Mopar Club Connection

resq302

If you have a vacuum hand pump, I would try to adapt that to it and see if it will hold a vacuum.  If not, then I would imagine that it is bad.
Brian
1969 Dodge Charger (factory 4 speed, H code 383 engine,  AACA Senior winner, 2008 Concours d'Elegance participant, 2009 Concours d'Elegance award winner)
1970 Challenger Convert. factory #'s matching red inter. w/ white body.  318 car built 9/28/69 (AACA Senior winner)
1969 Plymough GTX convertible - original sheet metal, #'s matching drivetrain, T3 Honey Bronze, 1 of 701 produced, 1 of 362 with 440 4 bbl - auto

Chatt69chgr

Prior Brake in TX rebuilt mine.  Cost around $100.  They used to be the rebuilders for all of NAPA stuff.