Master cylinder help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

boundstaffpress · 01-10-2006, 12:03 PM

My master cylinder will not pump and hold pressure on the front brakes. The back reservoir works fine, but the front will not.

Can a 1967 m/c be rebuild? Does it just have O-rings? Is it not worth the trouble?

I have the M/C out of the pickup, have blown it out, and refilled a couple of times to remove debris. No change.

yank · 01-10-2006, 12:10 PM

Just go to the parts store and buy a new one, they are pretty cheap ($15 or so). If you were closer I'd give you a new one that I have sitting in the shop. But by the time you pay shipping and wait on it I doubt it it is worth it.

Custom 68 · 01-10-2006, 12:15 PM

go to the local autoparts store and get a new one, not a remaufactured one. They are pretty cheap and you wont have to worry about it. I think mine was under 30 bucks. I had converted mine to front disks so I used one off a 72 with power but I bet the price for yours will be the same.
I think mine is from Autozone. I purchased the reman first and it leaked and didnt work right so the new one was cheap enough that is what I have now.
Dave

Custom 68 · 01-10-2006, 12:15 PM

well yank you are a faster typer than I am.
dave

boundstaffpress · 01-10-2006, 12:27 PM

Thanks guys. We'll get a new one coming.

See if you can beat this deal. I have agreed to buy this pickup from the Ag-shop teacher at the high school I work at, so his shop boys are doing all the work to get things running. Deal was $1000 for a running pickup. He picks up the tab till it runs, then I drive it home.

01-10-2006, 12:03 PM	#1
boundstaffpress Jamie Hyneman is my twin Join Date: Nov 2005 Location: La Junta, Colorado Posts: 705	Master cylinder help My master cylinder will not pump and hold pressure on the front brakes. The back reservoir works fine, but the front will not. Can a 1967 m/c be rebuild? Does it just have O-rings? Is it not worth the trouble? I have the M/C out of the pickup, have blown it out, and refilled a couple of times to remove debris. No change. __________________ Justin SOLD 1967 K10 Fleetside, 283, Front and Rear Posi SOLD Color Wiring Diagrams Now in High Resolution V8 and Cab and Cab and Chassis

01-10-2006, 12:10 PM	#2
yank Registered User Join Date: Jan 2001 Location: Meridian, Ms. Posts: 244	Re: Master cylinder help Just go to the parts store and buy a new one, they are pretty cheap ($15 or so). If you were closer I'd give you a new one that I have sitting in the shop. But by the time you pay shipping and wait on it I doubt it it is worth it. __________________ 70 C/10 SWB Go ahead chance it........Columbus did!!! Steve (Chitlin) Bacon My DIY Shop http://s24.photobucket.com/albums/c47/mpalmiter/shop/

01-10-2006, 12:15 PM	#3
Custom 68 Registered User Join Date: Nov 2001 Location: Springfield, MO Posts: 2,939	Re: Master cylinder help go to the local autoparts store and get a new one, not a remaufactured one. They are pretty cheap and you wont have to worry about it. I think mine was under 30 bucks. I had converted mine to front disks so I used one off a 72 with power but I bet the price for yours will be the same. I think mine is from Autozone. I purchased the reman first and it leaked and didnt work right so the new one was cheap enough that is what I have now. Dave __________________ Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!"

01-10-2006, 12:15 PM	#4
Custom 68 Registered User Join Date: Nov 2001 Location: Springfield, MO Posts: 2,939	Re: Master cylinder help well yank you are a faster typer than I am. dave __________________ Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!"

01-10-2006, 12:27 PM	#5
boundstaffpress Jamie Hyneman is my twin Join Date: Nov 2005 Location: La Junta, Colorado Posts: 705	Re: Master cylinder help Thanks guys. We'll get a new one coming. See if you can beat this deal. I have agreed to buy this pickup from the Ag-shop teacher at the high school I work at, so his shop boys are doing all the work to get things running. Deal was $1000 for a running pickup. He picks up the tab till it runs, then I drive it home. __________________ Justin SOLD 1967 K10 Fleetside, 283, Front and Rear Posi SOLD Color Wiring Diagrams Now in High Resolution V8 and Cab and Cab and Chassis



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