 SS_in_Seattle
"4th Year" Platinum Supporting Member
Posts: 1402
Reg: 05-08-03
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05-29-12 09:19 PM - Post#2231350
My '65 has been two places in the past month: A car show 3 weeks ago & Discount Tire last Saturday. On my way to the tire store, I was thinking to myself how easy it was to lock up the brakes, maybe because the shoes are new, the drums are new, the wheel cylinders & master cylinder, and brake booster are new.
After working on the interior for a while today, I drove the beast back into her cave, and when I stepped on the brake pedal, it went all the way to the floor. When I popped open the master cylinder, there was maybe 3 or 4 drops of brake fluid in it.
There's no fluid on the backing plates, there's no fluid around the wheels, there's not even any fluid on the garage floor or the driveway.
Have any of you guys experienced something like this, and did someone steal your brake fluid or what?
Greg
1965 Impala SS L78
1966 Impala SS Convertible
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slammed1
Contributor
Posts: 670
Age: 42
Loc: Ark
Reg: 03-28-12
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05-29-12 09:50 PM - Post#2231357
In response to SS_in_Seattle
The fluid wont evaporate so its going somewhere unseen. I would first un bolt your mastrer cylinder from the booster if you have one and see if there is fluid leaking into the booster. I have seen a booster hold quite a bit of fluid when a master cylinder was leaking. Theres really not much you havent covered already but a very close look at every line,fitting,cylinder is needed for further investigating.
If you dont have a booster then if the master cylinder was leaking you would either have fluid stain on the firewall or under your carpet inside.
Brake fluid properties make it absorb moisture but not evaporate so your loosing it somewhere. Remember that once your linings wear your fluid will be displaced so the level will get lowerer naturally so Im assuming you have new parts so wear shoujldnt be an issue.
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fsc66
Forum Newbie
Posts: 73
Loc:
Reg: 05-05-12
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05-30-12 03:53 AM - Post#2231385
In response to SS_in_Seattle
Just redid all my lines, so let's look at the lesser obvious leak joints. The rear fitting where the metal pipe meets the rear hose and the fitting where the rear hose joins the tee that splits to the rear drums. Both of these may be suspect and while you drive and depress the brake the fluid may be left on the street from the wind tunnel created under your car. Without much pressure from depressing the brakes you may not see a leak. fill up the reservoir and have someone step on the brake while you check each connector in the car, you'll find it.
Paul
Paul
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