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07-27-2005, 08:47 AM | #1 |
Registered User
Join Date: Mar 2005
Location: Melissa, TX
Posts: 799
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Testing vacuum booster?
Is there a way to test one without mounting it on the truck? Could you just put vacuum to it and see if there is a difference in force to move the rod? I have one that I want to put on my 71 but I want to see if it works before I go thru the trouble of mounting it.
ALSO, I have been researching prices on new ones. They show one for Bendix brakes and another for Delco. How can I tell which one I need since it did not originally have one?
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68 short bed driver (71 clip on it now, swapping to 68 when weather cooperates) 67 short step project (will get SWB from the 68) 67 Camaro, #'s matching (my wife's) 03 Dodge Ram 2500 4x4 diesel 5 speed 4.10 rear Last edited by fade94; 07-27-2005 at 10:56 AM. Reason: Add info |
07-27-2005, 10:52 AM | #2 |
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Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
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I'l like to know that also. I'm going to be doing the same install.....
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1997 GMC Sierra Ext 1965 Mustang |
07-28-2005, 12:17 AM | #3 |
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Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
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pull a vacuum on on it and see if it holds
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07-28-2005, 06:54 AM | #4 |
1969 Custom 30 wrecker
Join Date: Sep 2001
Location: Pottsville, Pa
Posts: 2,611
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I tested one like this. I just used one of my cars that have power brakes and pluged the check valve into the test booster. Start car and test by pushing the brake rod in to simulate putting the brakes on. If it goes in easily, it's working. I also tested it by shutting off the car and waiting about 1 minute. Then pull check valve. If there is still vacuum, you've got a good one.
Bob
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Bob 63 Impala 283/PG/3.36 (under restoration) 66 Impala 327/PG/3.36 66 Chevelle SS 409/M22/3.55 69 Chevelle 307/PG/3.08 (future restoration) 69 C10 short stepside 454/TH350/3.73 69 Custom 30 tow truck 350/4 spd/4.10 (resto done, CRUISIN TIME!) 71 Cheyenne 20 fleetside 350/4 spd/4.10 71 Chevelle 6/PG/3.08 72 Chevelle 454/M21/4.10 |
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