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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
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| | | | Joined: Oct 2018 Posts: 106 'Bolter | | 'Bolter Joined: Oct 2018 Posts: 106 | On my '54 6100, my brakes were working fine on Tuesday. Wednesday morning I get in it and the pedal goes to the floor. I checked the master cylinder and there is just a little bit of fluid in it. I don't have any leaks (the truck sits on clean concrete so it would be easy to spot). I had White Post rebuild the hydrovac booster but my concern is since I don't seem to have a leak on any lines, master cylinder or wheel cylinders, I can only assume that I have blow back from the hydrovac going to the motor and is being burned up. Has anyone else had this issue and what would be my next step. I got the hydrovac booster back from White Post in January. | | | | | Joined: Feb 2004 Posts: 29,749 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,749 | My experience with fluid getting into a Hydrovac vacuum chamber is that it will produce huge clouds of choking white smoke once it gets to the engine. That big vacuum drum can store a lot of fluid before that happens, however.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Feb 2016 Posts: 1,982 'Bolter | | 'Bolter Joined: Feb 2016 Posts: 1,982 | If your positive that the wheel cylinders aren't leaking then it's the hydrovac.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
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