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#1 |
Registered User
Join Date: Oct 2015
Location: Stoughton MA where everyhing on the road gets rusted out from winter and rock salt
Posts: 168
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simple question maybe ?
I was up on the Highway last night and a couple cars in front had a collision and I had to get on the breaks hard ,I don't tail gate so no problem But today, I popped the hood and notice some dampness on the Brake fluid reservoir so I think the high pressure leaked out a little, Brakes feel good truck is stopping Fine, I was just going to refill the res ,But am wondering if this will be problem later on ? also what kind of Break fluid should I add, 1972 C20 if that is the best thing for Now
thanks gg |
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#2 |
Registered User
![]() Join Date: Aug 2007
Location: Sandy, Oregon
Posts: 1,551
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Re: simple question maybe ?
Thanks pretty common, remove the cover and check the rubber gasket, if it has rust on it clean it off well and wipe down the surfaces with some light oil, break fulid is highly corrosive on any surface, dont over fill the reserve and use DOT 3 non-synthetic break fluid.
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Scotts72C10 |
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#3 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: simple question maybe ?
I wonder how safe those old hydraulic trailer brake setups were? I assume that's the T tap coming off... hope it goes somewhere solid!
I'd still have someome strong heave on the brakes while you're watching underhood with any existing fluid dried and cleaned. If it's slosh from the reservoir, no problem, but if its a high pressure fitting leak, you'd want that checked. If you can get it totally clean and dry you can check yourself, I'd imagine.
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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#4 |
Registered User
Join Date: Oct 2015
Location: Stoughton MA where everyhing on the road gets rusted out from winter and rock salt
Posts: 168
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Re: simple question maybe ?
Yes Thanks Guys that is good advise I'm pretty sure its reservoir But will check lines and connections, brakes still feel good I'll do this tomorrow on my day off , at least I stayed out of the ditch the other two were screwed nobody hurt though
gg |
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#5 |
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Location: PA
Posts: 1,417
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Re: simple question maybe ?
When you nail the brakes (not BREAKS ;-) ) there's basically a fountain of fluid in the reservoir. So if the gasket isn't sealing properly you'll see a little fluid.
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1967 C10, LWB, 250, Powerglide, PS, PB, 3/4 STATIC DROP |
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#6 |
Registered User
Join Date: Oct 2015
Location: Stoughton MA where everyhing on the road gets rusted out from winter and rock salt
Posts: 168
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Re: simple question maybe ?
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#7 |
Registered User
Join Date: Jan 2014
Location: Aloha, Or.
Posts: 46
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Re: simple question maybe ?
Adjust your rear brakes. The auto adjusters dont work very well from my experience. You cant stop if your brakes dont work on all four. The rubber gasket under the lid is probably leaking.I would be more concerned if you have a pressure leak.
Last edited by Gimme Jimmy; 12-13-2015 at 10:44 PM. |
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#8 |
Registered User
Join Date: Mar 2013
Location: Campbellsville, KY
Posts: 888
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Re: simple question maybe ?
Brake fluid itself isn't corrosive - it attracts water, and doesn't get flushed at regular intervals, therefore promoting corrosion from water. But on my vehicles, seepage like that isn't something I worry about. The edge of the MC will surface rust under the rubber seal leading to this - wipe all the rust scale off both surfaces and it'll probably go away for a while.
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Alex V. ------ 1967 C10 Suburban, 350/NP435, Green/Green, PS, PB, HD cooling, charging, shocks, and springs. 1985 GMC C3500 SRW, Sierra Classic, 454/TH400, white/blue. |
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#9 | |
Registered User
Join Date: Mar 2013
Location: Puyallup WA
Posts: 122
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Re: simple question maybe ?
Quote:
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70 lwb c-10 |
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#10 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
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Re: simple question maybe ?
This means you have very good brakes.
On the trailer brake lines, they are like any other part of the system. As long as everything is tight they are safe. I'm in the habit of removing them because they usually aren't working right and just add more unions to leak, as well as the component itself. The modern brake systems are so much nicer to use... but don't look as cool as the old ones
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#11 | |
Registered User
Join Date: Oct 2015
Location: Stoughton MA where everyhing on the road gets rusted out from winter and rock salt
Posts: 168
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Re: simple question maybe ?
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#12 |
Registered User
Join Date: Oct 2015
Location: Stoughton MA where everyhing on the road gets rusted out from winter and rock salt
Posts: 168
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Re: simple question maybe ?
Okay Guys I opened the Reservoir Cleaned up the sealing edges and rubber, only added a very little dot 3 level was about 1/4 inch from rim put it back together, brakes feel good and hard no slip and did not see any more seep I'll keep an Eye On it
Thanks for the advice Merry Christmas gg |
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