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04-05-2008, 04:48 PM
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#1 |
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Senior Member
 
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,468
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Brake boosters
Does anyone know if a brake booster diaphragm will dry out from just sitting around? I found one that has been sitting, off the truck, for about a year. Is there a way to test them besides installing it and trying it out?
Thanks, Mark
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70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Sliding Rear Window Power Windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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04-05-2008, 05:03 PM
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#2 |
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The Older Generation
  
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,897
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Re: Brake boosters
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I would suppose they can but I think the diaphragms are made out of pretty good stuff. If you have some way of drawing a vacuum on it to see if it holds it, that would work. Whatever you used would have to have a gauge on it. I tested mine with my Harbor Freight vacuum brake bleeder. LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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04-05-2008, 05:32 PM
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#3 |
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Senior Member
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,468
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Re: Brake boosters
So put a vacuum on the fitting that goes to the intake manifold and see if it holds? Would a hand vacuum pump work?
__________________
70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Sliding Rear Window Power Windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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04-05-2008, 05:45 PM
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#4 | |
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On the fast track to nowhere..
Join Date: May 2006
Location: Splendora, Texas
Posts: 5,316
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Re: Brake boosters
Quote:
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-Mike Owen- Norwood, Houston, Cecilia, Jackson, Monroe and counting |
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04-05-2008, 06:05 PM
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#5 |
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Senior Member
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,468
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Re: Brake boosters
Thanks for the info guys, I'll test it before I put it on.
__________________
70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Sliding Rear Window Power Windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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