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Tips
Tips

Master cylinder install tips????

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vagt6

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Hello, all. I'm installing a new Moss master cylinder in my '74 Midget tomorrow. I've had the old one out twice recently so I'm pretty good at the installation process by now. I've also installed new new calipers, wheel cylinders so the braking system is practically new.

Any tips or suggestions on installing a new master cylinder? Just bolt it in, fill with fluid and bleed the brakes? Is that it?

Looking forward to NOT having brake fluid on my pedals!

Thanks for this and all the good tips, gents. :thumbsup:
 
Okay, now off to the auto parts store for a bench bleeding kit.

Thanks for the tips, guys! :thumbsup:
 
What is a bench bleeding kit?
 
Trevor Jessie said:
What is a bench bleeding kit?
Click to expand...

In my case, it typically requires a saw or a chisel but I already have many.
grin.gif
 
If you have not already replace the flex brake lines in Front and Rear. They collapse internally and if older than 10 years replace.
 
Trevor Jessie said:
What is a bench bleeding kit?
Click to expand...

Trevor: it has plastic plugs with short hoses that go into the brake line outlets. Screw in the plugs, attach hoses and then route the hoses back into the cylinder. Pump the push rod until the bubbles stop appearing.

I hope that does it.

Top down driving weather here today, I want to get me some. :yesnod:

Thanks, all. :thumbsup:
 
Hmmm. I never knew they made a kit. My "kit" is a little plastic box with a bunch of old fittings and soft wall copper tube and such.
 
Mine is fingers over the outlets and push th' silly rod against a wall. Play it like a flute. Oh yeah... do it OUTDOORS. Call'd a "Wall Bleed" :smirk:

Don' need no steenkin' kit. :devilgrin:
 
DrEntropy said:
Mine is fingers over the outlets and push th' silly rod against a wall. Play it like a flute.....
Click to expand...

Same here.

Also, I like to hook up the lines <span style="text-decoration: underline">before</span> the master cylinder is bolted in (but placed in postion). It's easier to catch the hard line thread when the MC is loose.

And: if you have trouble with air in the lines (after several attempts of bleeding at the disk/drum end), try bleeding at the master cylinder end. Sometimes air gets trapped at the high end of the system.
To do this: Have an assistant pump the pedal several times and hold down. While the assistant holds pedal down, loosen the lines at master cylinder end just a little. This may allow any trapped air to "burp" out. This is messy so have plenty of rags to protect paint.
 
The bleed kit was $6 at NAPA, had plastic connections and tubing. Very useful.

Also, great tip to connect the lines to the MC BEFORE bolting the MC in. Those lines can be a bit tough to get threaded into the MC.

Again, excellent tips. Thanks to everyone. :yesnod:
 
vagt6 said:
The bleed kit was $6 at NAPA, had plastic connections and tubing. Very useful.

:
Click to expand...

Once upon a time, they use to come w/ the m/c for free. Then it became an add on sale item.
 
Still included with some. Got a M/C from NAPA for Diesela a while back, it had 'em in the box.

I thought that was cute, left 'em in the bag. :smirk:
 
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