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| | | | Joined: May 2005 Posts: 1 Junior Member | | Junior Member Joined: May 2005 Posts: 1 | I purchased the truck and noticed the brake pedal feel is progressivly getting worse. Now the pedal hits the floor. I added much needed fluid but can't find bleed screw. The line from the MC goes to a secondary vacuum booster, where there is a bleed valve, but appears to be a separate fluid system. Chiltons manual was not very helpful.
I'm thinking of installing a new master cylinder, but need to know where the bleeder is.
thanks from Arizona!
I'll send a pic of this old county truck next time. | | | | | Joined: Feb 2000 Posts: 587 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 587 | There is no bleeder on master. Should or may be two on the Hydrobooster you found. This is not a seperate system, all fluids go thru all the parts. Be VERY careful when trying to loosen the bleeders on the Hydroboost, don't want to snap off. Best to use hex socket, go slow, loosen some, tighten back up, loosen little more, back and forth till comes out easy. Also, the rear wheels will probly have two cylinders in them, may need to bleed both.
I would check for a leaking metal line or wheel cylinder leaking before messing with MC. Setting around is bad on brake systems, specially if in tall grass area.
G.L. Grumpy's
Old Iron Ranch
Huntington, IN 46750
MM R tractor, Speedex
and Power King tractors
| | | | | Joined: Sep 2004 Posts: 117 Member | | Member Joined: Sep 2004 Posts: 117 | The bleeder screw is in top of the long cast part on the booster. | | | | | Joined: Apr 2005 Posts: 926 Shop Shark | | Shop Shark Joined: Apr 2005 Posts: 926 | On my 66 C-60,when I got it,the brakes would pump up to about 3 or 4 inches off the floor with one pump,but never got any better,and I had to pump it up every time I used the brakes. I thought I would have to go through the brake hydraulics on it,but a friend and I decided to bleed them and see what we could get. We bled the right rear brake forst,and the pedal came up to where it should have been,and the brakes work fine now.
Try bleeding the brakes thoroughly before you start replacing parts. Work from the farthest fitting from the master cylinder to the closest.The brake booster will be the last one you bleed. BTW-even though there's no bleeder screw on your master cylinder,if you need to work air out of it,you can bleed it by opening the brake line right at the master cylinder just as you would a bleeder screw. Just be careful not to round the flats on the line nut. | | |
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