Installing New Master Cylinder
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Senior User
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From: New Orleans--High Ground
Installing New Master Cylinder
Im putting a new MC on my 78f150 and Im reading that I need to bleed the MC first. Im not quite sure how to go about this to ensure that when I install it, it works correctly. The paper mentions that Im supposed to get the MC in a vice and then attach some kind of plugs/ports to the two outlets but I dont see those in my kit.
Feel free to email me your experience/knowledge. It will be a couple days until I get to the shop to do it.
Feel free to email me your experience/knowledge. It will be a couple days until I get to the shop to do it.
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its an easy process and the plugs have always been with the new cylinder and the install sheet shows just how to do the bleed process. all you're doing is getting the air out of it and you will still need to bleed the brakes after the install. good luck
Logistics Pro
Joined: May 2003
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From: Northern Illinois
Originally Posted by jerryh20
its an easy process and the plugs have always been with the new cylinder
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From: New Orleans--High Ground
Yeah- I bought new hard lines down to the valve as well. so i can just use those ones off the old MC i guess and bend them around into the new reservoir. that should be easy enough.
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Laughing Gas
Joined: Feb 2007
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From: hohenwald, tn
look on the red help board. they used to make a kit with fittings and hose. when i was in the parts business i sold tons of them. i think they were like 6.00. remember the old days when they gave you lines and fittings when you bought a master? the old days were good. these companies could just make all our lives easy and spend the extra 50 cents.
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It's called: Bench Bleeding
Be careful when tightening the vice...you can damage the piston from over tightening.
2 ways to do it.
Bend the tube/hoses so they run from the outlets ...and go back into the reservoir filled with brake fluid
or
Make sure you have about an 1" of brake fluid in a jar with both brake hose/tubes/lines submerged into the brake fluid
Fill the reservoirs of the MC and then take a large philips screwdriver and push the piston in numerous time until there aren't any more air bubbles coming out.
Remove the hoses and put the dirt covers back on the for MC assembly.
Keep the MC upright as you handle is
Be careful when tightening the vice...you can damage the piston from over tightening.
2 ways to do it.
Bend the tube/hoses so they run from the outlets ...and go back into the reservoir filled with brake fluid
or
Make sure you have about an 1" of brake fluid in a jar with both brake hose/tubes/lines submerged into the brake fluid
Fill the reservoirs of the MC and then take a large philips screwdriver and push the piston in numerous time until there aren't any more air bubbles coming out.
Remove the hoses and put the dirt covers back on the for MC assembly.
Keep the MC upright as you handle is
Last edited by Mil1ion; Apr 22, 2007 at 11:28 AM.
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