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Lost brakes #1310190 Thu May 09 2019 10:15 PM
Joined: Oct 2018
Posts: 104
kclark2227 Offline OP
Shop Shark
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.

Re: Lost brakes [Re: kclark2227] #1310191 Thu May 09 2019 10:34 PM
Joined: Feb 2004
Posts: 19,019
Hotrod Lincoln Online
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.

The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Lost brakes [Re: kclark2227] #1310209 Fri May 10 2019 12:42 AM
Joined: Feb 2016
Posts: 276
78buckshot Offline
Shop Shark
If your positive that the wheel cylinders aren't leaking then it's the hydrovac.

1957 Chevrolet 5700 LCF 283 SM420 single speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto

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