how do i replace brake cylinders on a 65' chevy truck?

Question

replace/repair

Answer 1

For this old a truck you need a manual to guide you through the technical details. But I assume mean the wheel cylinders. First jack up the truck and place on secure jack stands. Remove the wheels and disconnect the wheel cylinders from the backing plate. Probably would be a good idea to drain the master cylinder first. A Turkey baster will work for this purpose or something similar. Use flare nut wrenches so,as not to round the nuts. Disconnect the brake lines then unbolt the wheel cylinders from the backing plate. Installation is just the reverse, but be sure to keep everything clean and once all back together you will need to flush all the air out of the system, by bleeding the brakes. if you also replace the master cylinder you will need to bench prime this first prior to installation. Then follow the normal bleeding procedure by bleeding the cylinder frutheriest from the master cylinder first.

Remember to properly dispose of the brake fluid as it is toxic waste. Do not dump on the ground. Also be sure to draw or take a ficture of how the brake shoes were installed so you can assemble properly. Remember there is a front and back shoe on each wheel so do not mix them up.

Answer 2

Once you replace the wheel cylinder, check to make sure the master cylinder is full. Look for the the bleeder valve on the backside of the drum. Get a second person to pump the pedal for you and hold down the pedal while you open the valve. Have the person hold down the pedal while you open the valve to bleed the line/cylinder. Close the valve and pump up pedal again. You'll need to do this about 4-5 times usually. Check the master cylinder to top off the fluid. It's a good idea to bleed all of the cylinders to replace all of the fluids. When everything is correct, you'll have a good stiff pedal. Be sure to check that the auto brake adjusters are working properly too.

Answer 3

Well, I assume you speak of the master cylinder because the only other cylinders in a brake system is the one's the caliper pistons sit in.

I am going to make an eduacated guess, and assume that you know nothing about brake systems (Yes, your question tells me all that). Most parts of braking systems are not servicable (which mean you cannot repair) they are usually just replaced. My advise to you is to not touch your braking system because you will kill yourself later when you drive the truck. Take it to a professional, and have them change the master cylinder.

Answer 4

If you are speaking of wheel cylinders they are repairable in place, You ned a kit for each one. I don't know if 65" had disc or drums on the front. If you purchase a CHILTONS manual at the parts store it will tell you how to do the job. It is too much to do here.