T-Series & Prewar Forum

Welcome! Sign In Register

Please Sign In or Register to Search

Rebuilding wheel cylinders and adding fluid

Posted by jimathome

Want to advertise your business in this space? Click here for more information!

Topic List Forum List Newer Older Start New Topic

Rebuilding wheel cylinders and adding fluid #1
jimathome Jim Walton Columbus, Georgia, USA	Posted: July 13, 2012 04:12PM Registered: 5 years ago Posts: 44

Hello,

I am in the middle of rebuilding all 6 MG TD wheel cylinders and adding new brake fluid. After I have all cylinders rebuilt and mounted, how do I go about adding the fluid? Do I add it to the master cylinder until it runs out of each bleed fitting? Do I do one of them at a time? This is something I have never done before. I have installed a new master brake and clutch cylinder and am ready to add fluid. Any help would be appreciated.

Thanks, Jim Walton

Sponsored Links. You can hide this ad & support this site by upgrading to a Gold Membership ~ click here for more info.

Reply Quote

Re: Rebuilding wheel cylinders and adding fluid #2
LaVerne LaVerne Downey Colorado, USA 1952 MG TD "Black Bitch" 1954 MG TF "Green Hornet" 1969 MG MGB	Posted: July 13, 2012 06:35PM Registered: 5 years ago Posts: 4,332

With the cylinders on and the brake drums in place...wheels on or off doesn't matter. All bleed valves should be closed. Fill the master cylinder with brake fluid. Use a piece of clear plastic tubing that will fit over the bleed nipple..about 12 to 20 inches long..and let the loose end sit in a quart jar that you never want to use for anything ever again. Start with the wheel cylinder farest from the master cylinder ( right rear for left hand drive car). Have a helper push the pedal to the floor and hold it there. Crack open the bleed valve and let the fluid flow into the jar. When it stops tighten the bleed valve. Tell the helper to release the pedal and repeat the procedure again and again until you no longer see air bubbles in the fluid. Stop occasionally and top up the master cylinder...you do not want to let it run down and start pushing air through the system. Move to the left rear next, followed by the right front and then finally the left front. If using silicone brake fluid , I'd recommend you repeat the procedure after allowing the car to sit untouched for 24 hrs. All brake fluids except silicone are excellent paint removers , so be quick to wipe any up you may have spilled.

One other thing....Clutch cylinder????

Reply Quote

Re: Rebuilding wheel cylinders and adding fluid #3
jimathome Jim Walton Columbus, Georgia, USA	Posted: July 15, 2012 12:35PM Registered: 5 years ago Posts: 44

Thanks LaVerne,

I do have another question, when you assemble the cylinders, do you lube the rubber pieces with brake fluid as you put them into the cylinder? If I can get the brakes done, the clutch should be easy. What is your opinion of silicone brake fluid? I have read many different opinions with many people liking it and many not.

Jim

Sponsored Links. You can hide this ad & support this site by upgrading to a Gold Membership ~ click here for more info.

Reply Quote

Re: Rebuilding wheel cylinders and adding fluid #4
Mr. Barry Edward Wesson Hiawassee, Georgia, USA	Posted: July 16, 2012 05:19PM Registered: 3 years ago Posts: 1,866

In my opinion, only....If you are rebuilding the entire hydraulic system, you will be smart to switch over to DOT 5....You will love the fact that you will probably never again have to change fluid....It doesn't eat paint , either, so spilling it will not mess up your car.
I had a motorcycle for 27 years, and never changed the DOT 5 fluid...Just occasionally added.
Edward

"It's not a car....It's a CAREER!"

Reply Quote

Re: Rebuilding wheel cylinders and adding fluid #5
jimathome Jim Walton Columbus, Georgia, USA	Posted: July 16, 2012 07:26PM Registered: 5 years ago Posts: 44

Thanks Edward,

I am going to give the complete rebuild serious consideration. It has been over 10 years since I have done any real brake work on my car. It is way past time.

Jim

Sponsored Links. You can hide this ad & support this site by upgrading to a Gold Membership ~ click here for more info.

Reply Quote

Re: Rebuilding wheel cylinders and adding fluid #6
tigermoth thomas peterson illinois, USA 1951 MG TD "Phoebe"	Posted: July 17, 2012 02:03PM Registered: 3 years ago Posts: 135

jim, yes, lube the internal parts with whatever brake fluid you are planning to use. i switched to silicon 10+ years ago with no issues.

i am curious as to why you mention the clutch in you brake post...is that just the next project on your list? regards, tom

Reply Quote

Re: Rebuilding wheel cylinders and adding fluid #7
jimathome Jim Walton Columbus, Georgia, USA	Posted: July 17, 2012 08:25PM Registered: 5 years ago Posts: 44

Yep! I have recently replaced the ring gear on my flywheel. While this was being done, I replaced the clutch and throw-out bearing. I think the clutch hydraulics will be next.

Jim

Reply Quote

Re: Rebuilding wheel cylinders and adding fluid #8
ddubois Dave DuBois Bremerton, WA, USA	Posted: July 17, 2012 10:11PM Registered: 7 years ago Posts: 4,284

In reply to a post by Jim Walton wrote Yep! I have recently replaced the ring gear on my flywheel. While this was being done, I replaced the clutch and throw-out bearing. I think the clutch hydraulics will be next.

Clutch cylinder on a TD? Is this some kind of a modification? TDs had either a cable or rod operated clutch, never a hydraulic clutch (unless you have a MGA or MGB engine and transmission in your TD).
Cheers,

Dave DuBois
1953 MGTD
1966 MGB
http://homepages.donobi.net/sufuelpumps/

Edited 1 time(s). Last edit at 07/17/2012 10:12PM by ddubois.

How to advertise on this website

SU Fuel Pumps & More SU fuel pump restoration and conversion to solid state. Information and technical articles on SU fuel pumps.

Reply Quote

Re: Rebuilding wheel cylinders and adding fluid #9
tigermoth thomas peterson illinois, USA 1951 MG TD "Phoebe"	Posted: July 18, 2012 12:23PM Registered: 3 years ago Posts: 135

i'm curious about your hydraulic clutch modification as well. was this something you did or a previous owner? regards, tom

Reply Quote

Re: Rebuilding wheel cylinders and adding fluid #10
jimathome Jim Walton Columbus, Georgia, USA	Posted: July 18, 2012 02:33PM Registered: 5 years ago Posts: 44

This TD has been modified. It has an MGA engine and hydraulic clutch. I have no idea why anyone would do this but they did and I can't see changing back.

Jim

Reply Quote

Re: Rebuilding wheel cylinders and adding fluid #11
Mr. Barry Edward Wesson Hiawassee, Georgia, USA	Posted: July 18, 2012 07:26PM Registered: 3 years ago Posts: 1,866

In reply to # 2123613 by jimathome This TD has been modified. It has an MGA engine and hydraulic clutch. I have no idea why anyone would do this but they did and I can't see changing back.

Jim

Probably to get it up to highway speed, without having to exceed terminal velocity! (LOL).
Edward

"It's not a car....It's a CAREER!"

Reply Quote

Topic List Forum List Newer Older Start New Topic

RSS

Add your reply here, or post your own questions!

Members Sign In if you've already registered, or
Register a New Account
Registration is free and takes less than a minute

MGB & GT · MG Midget · Buy, Sell & Trade · Vendor & Group Buy · MG Engine Swaps · Original MG · MGA · MGC · MG Magnette · 1100 & 1300 · T-Series & Prewar · Modern MGs · MG Motorsports · MG-2013 Event · Member Meetup · Other Vehicles · Off Topic · Clubs

Having trouble posting or changing forum settings?
Check the Forum Help File (FAQ) or contact the webmaster.
View the archived version of this thread.
Built using Phorum Open Source Software

The MG Experience

www.mgexp.com

T-Series & Prewar Forum

Rebuilding wheel cylinders and adding fluid

Add your reply here, or post your own questions!Members Sign In if you've already registered, orRegister a New AccountRegistration is free and takes less than a minute

Join Our Club

MGExp Menu

—

Adjust Text Size

More to Explore

Add your reply here, or post your own questions!

Members Sign In if you've already registered, or
Register a New Account
Registration is free and takes less than a minute