Vanning.com logo
Boxdin
Site Navigation


Advertisements
Recent Posts
What Did You do To your Van Today?
by frscke1 - October 26th 2020 1:21 am
1969 Econoline Shorty
by Deathorvictory - October 26th 2020 12:57 am
Some Junkyard Finds
by Deathorvictory - October 26th 2020 12:53 am
Filter in Brake Booster Vacuum Line?
by Ram4ever - October 25th 2020 10:57 pm
Chevy/GMC Van Rear Doors '71-'95
by Hugo - October 25th 2020 10:39 pm
Featured Links
Vanning.Com is a an authorized Amsoil Dealer


Previous Thread
Next Thread
Print Thread
Rate Thread
Brake Fluid leaking from rear tire
#763859 July 23rd 2020 12:30 am
Joined: May 2020
Posts: 69
J
journeyman
OP Offline
journeyman
J
Joined: May 2020
Posts: 69
So I have been losing some brake fluid from the master cylinder. The one in the rear I believe goes to the rear tires. Today I found the leak, I noticed it leaking out by the tire and it actually stated pooling up on the garage floor. My brake light has been on since getting the van.

I am thinking this is the wheel brake cylinder? I have never messed with drum brakes so not sure what I will find in there when I open it up. Can I replace the cylinder without messing with the shoes? Hoping to replace the proportioning valve and just the brake cylinder to see if it fixes the loss of fluid, brake light, and mushy brakes.

Attached Files 20200722_200328.jpg

1977 Chevy G20 with 350
Re: Brake Fluid leaking from rear tire
jtozier406 #763860 July 23rd 2020 4:16 am
Joined: Apr 2004
Posts: 1,839
veteran
Offline
veteran
Joined: Apr 2004
Posts: 1,839
You will almost certainly have to replace the brake shoes also, as brake fluid degrades the brake shoe material. Last thing you want is to fix the leak then have the shoes fall apart later. New brake shoes are cheaper than a new front end (or worse). Rockauto have closeout specials on some brake parts at the moment.


79 chevy G30 cobra camper conversion.
[Linked Image]
Re: Brake Fluid leaking from rear tire
jtozier406 #763861 July 23rd 2020 7:35 am
Joined: Dec 2018
Posts: 97
Likes: 1
S
journeyman
Offline
journeyman
S
Joined: Dec 2018
Posts: 97
Likes: 1
Yeah. Wheel cylinder, shoes are a good idea, make sure the drum is in spec. Bleed the brakes.

Re: Brake Fluid leaking from rear tire
samhain #763862 July 23rd 2020 11:24 am
Joined: May 2020
Posts: 69
J
journeyman
OP Offline
journeyman
J
Joined: May 2020
Posts: 69
Originally Posted by samhain
Yeah. Wheel cylinder, shoes are a good idea, make sure the drum is in spec. Bleed the brakes.



I may just change it all out including the drum, by the looks of it I think it has been on there a while. What brands do you all prefer for drums, shoes, cylinders, and springs? Also I need a spring removal tool right?


1977 Chevy G20 with 350
Re: Brake Fluid leaking from rear tire
jtozier406 #763863 July 23rd 2020 12:43 pm
Joined: May 2020
Posts: 69
J
journeyman
OP Offline
journeyman
J
Joined: May 2020
Posts: 69
Yup she had some fluid in there. Going to measure these shoes and get some ordered.

Attached Files 20200723_102958.jpg20200723_102950.jpg

1977 Chevy G20 with 350
Re: Brake Fluid leaking from rear tire
jtozier406 #763865 July 23rd 2020 1:28 pm
Joined: Dec 2018
Posts: 97
Likes: 1
S
journeyman
Offline
journeyman
S
Joined: Dec 2018
Posts: 97
Likes: 1
I’ve done it a million times with a Pair of dikes and a pair of pliers. Never got the hang of that fancy brake tool. Wagner/raybestos, probably some other decent ones too.

Last edited by samhain; July 23rd 2020 1:30 pm.
Re: Brake Fluid leaking from rear tire
jtozier406 #763866 July 23rd 2020 2:11 pm
Joined: Aug 2005
Posts: 20,781
Likes: 4
N
Supreme Master
Offline
Supreme Master
N
Joined: Aug 2005
Posts: 20,781
Likes: 4
I had everything on the rear brakes replaced on my 93. Wheel cyls, shoes, drums, and all hardware. I bought everything through Rockauto, Raybestos brand. Had a friend do the work because I'm lazy and didn't want to lay on the hot asphalt. smile


Nate Breece
--------------
1993 Chevy G20
2012 Hyundai Santa Fe

Moderated by  Astro 

Link Copied to Clipboard
Donate


discovery
Who's Online Now
0 members (), 5 guests, and 3 robots.
Key: Admin, Global Mod, Mod
Newest Members
gumthps, Okibonoe, Tufbnme, Patekakes, CryptoChevy
11660 Registered Users
Top Posters (30 Days)
SDMickey 163
frscke1 50
NateB 25
NEmery 23
Forum Statistics
Forums68
Topics38,182
Posts537,072
Members11,661
Most Online177
May 8th, 2013

Powered by UBB.threads™ PHP Forum Software 7.7.4