Cleaning a Rusty Master Cylinder Brake Fluid Resevoir - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bddcustoms · 04-05-2011, 10:51 AM

Hey Board,

How do I clean this out?

Thx

DTT

Let's Go Os!!!

ls1nova71 · 04-05-2011, 10:58 AM

Looks like it's had some water in it for a while, and if the reservoir is that rusty, the cylinder bore probably is too. I'd replace it for no more than they cost and save yourself a headache later.

Beat68CST · 04-05-2011, 11:15 AM

I'd try puttin some CLR in it and lettin it sit for a few.

**LEEVON** · 04-05-2011, 11:32 AM

CLR or wood bleach powder/water. Soak it for awhile, should be good.

usmcchevy · 04-05-2011, 12:20 PM

I'd get a rebuilt, they're about $15

*stich626* · 04-05-2011, 12:28 PM

this is your brakes,, either take it apart and clean it and add new seals after a light hone, or replace it.. being cheap here is stupid.. a good rebuild is 70 bucks.
cheap ones are 18-20.
a rebuild kit to do yours is 20-25..

68gmsee · 04-05-2011, 01:47 PM

Yours seems to have quite a bit of rust and it could be pitted internally. Back in the old days we used to rebuild them by honing, new seals, pistons, etc. These days, it's not worth the effort. If you're patient and do a good job it can be done but otherwise as some mentioned above buy one. You can get high dollar ones but I've used the Napa ones and other local parts places and they've held up pretty well.

Be aware that even new ones can be defective so be sure and do a careful job of bench bleeding following the instructions carefully. Before taking it on the road do some testing in the drive way then around the block and or an empty parking lot if possible.

cdowns · 04-05-2011, 02:08 PM

if you like the truck stopping when you want it to stop a new master is cheap compared to brake failure when your life depends on it

*stich626* · 04-05-2011, 02:26 PM

I will be rebuilding mine, as it has bleaders on it..
it's easy to do..

04-05-2011, 10:51 AM	#1
bddcustoms Registered User Join Date: Apr 2009 Location: Bowie, Maryland Posts: 80	Cleaning a Rusty Master Cylinder Brake Fluid Resevoir Hey Board, How do I clean this out? Thx DTT Let's Go Os!!! Attached Images __________________ broke d!@k dog Garage 1969 C20 - Project: "Big Sexy" [http://67-72chevytrucks.com/vboard/s...d.php?t=454894] 2003 'Burban - [Big Pop's daily driver] 1969 350/350 Stingray - [as soon as the economy turns...] 1939 Chevy Roadster Pick Up - Project: "Pre-School" (searching now)

04-05-2011, 10:58 AM	#2
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,119	Re: Cleaning a Rusty Master Cylinder Brake Fluid Resevoir Looks like it's had some water in it for a while, and if the reservoir is that rusty, the cylinder bore probably is too. I'd replace it for no more than they cost and save yourself a headache later.

04-05-2011, 11:15 AM	#3
Beat68CST Registered User Join Date: Oct 2010 Location: Buckeye Arizona Posts: 470	Re: Cleaning a Rusty Master Cylinder Brake Fluid Resevoir I'd try puttin some CLR in it and lettin it sit for a few.

04-05-2011, 11:32 AM	#4
LEEVON Moderator Join Date: Jul 2006 Location: Ozark, MO Posts: 4,888	Re: Cleaning a Rusty Master Cylinder Brake Fluid Resevoir CLR or wood bleach powder/water. Soak it for awhile, should be good. __________________ '20 Silverado Trail Boss ~ '17 Tahoe ~ '79 K15 Sierra Grande ~ '76 Blazer 2wd ~ '71 Cheyenne swb ~ '55 Pontiac Safari ~'50 3100 bagged ~ '80 Wife ~ Late model kids

04-05-2011, 12:20 PM	#5
usmcchevy Has more rust than truck... Join Date: Apr 2005 Location: Ivanhoe, MN Posts: 2,421	Re: Cleaning a Rusty Master Cylinder Brake Fluid Resevoir I'd get a rebuilt, they're about $15 __________________ 1972 Custom/10 SWB, 4.8/4l80e Build thread LSx Swap FAQ index

04-05-2011, 12:28 PM	#6
stich626 Account Suspended Join Date: Sep 2010 Location: hingham ma Posts: 1,721	Re: Cleaning a Rusty Master Cylinder Brake Fluid Resevoir this is your brakes,, either take it apart and clean it and add new seals after a light hone, or replace it.. being cheap here is stupid.. a good rebuild is 70 bucks. cheap ones are 18-20. a rebuild kit to do yours is 20-25..

04-05-2011, 01:47 PM	#7
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: Cleaning a Rusty Master Cylinder Brake Fluid Resevoir Yours seems to have quite a bit of rust and it could be pitted internally. Back in the old days we used to rebuild them by honing, new seals, pistons, etc. These days, it's not worth the effort. If you're patient and do a good job it can be done but otherwise as some mentioned above buy one. You can get high dollar ones but I've used the Napa ones and other local parts places and they've held up pretty well. Be aware that even new ones can be defective so be sure and do a careful job of bench bleeding following the instructions carefully. Before taking it on the road do some testing in the drive way then around the block and or an empty parking lot if possible.

04-05-2011, 02:08 PM	#8
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Cleaning a Rusty Master Cylinder Brake Fluid Resevoir if you like the truck stopping when you want it to stop a new master is cheap compared to brake failure when your life depends on it __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

04-05-2011, 02:26 PM	#9
stich626 Account Suspended Join Date: Sep 2010 Location: hingham ma Posts: 1,721	Re: Cleaning a Rusty Master Cylinder Brake Fluid Resevoir I will be rebuilding mine, as it has bleaders on it.. it's easy to do..



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