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Duner97 · 07-22-2002, 03:42 AM

Been visiting the site off and on for a couple years, ya know checkin out stuff every now and then. I bought a 72 Cheyenne shortbed fleetside 4x4 about a month ago. Its been my dream truck and now i have one, so this is my new project. its gonna be one of those slowly but surely types of things. It's got a 327, turbo350 AC PB PS. She runs like a top, but wont stop for anything! it has been sitting for years, and the brakes dont work. i bought a new master cylinder, slapped it on and they worked, a lil spongy, but they stopped me! so i bled em once more and after that, no brakes, so i'm back to where i started!

Andy4639 · 07-22-2002, 03:56 AM

Have you been under it to check and see if there is fluid running out at one of the wheels. If it sat for a long period of time I would suggest a shop look at it. You said you bleed them a couple of times did you refill the brake fluid. I would check the back brakes and all the lines to see if any thing is missing.

Duner97 · 07-22-2002, 04:07 AM

Yup, I've looked around for a leak and found nothing out of the ordinary. I refilled the fluid level and it's fine. it just seems as if it sucked in in air. If i get time, i'll take the master cylinder off, and bench bleed it again. If it works after that, I'll have a better idea where to start lookin. I should probably go ahead and get new wheel cylinders for the rears since its probably been a while since its had new ones.
Forgot to mention, the truck is real straight except for a dent on the bottom front corner of the bed on the right side and dented rockers from being highcentered and the only rust i have found is surface rust on the floorboards... and i picked her up for $4250.

Super Chevy · 07-22-2002, 04:13 AM

Nice lookin truck

hope you get your brake prob's solved...

Longhorn Man · 07-22-2002, 07:16 AM

Welcome from Ohio.
Brakes are over rated anyways...mine are more like delayers

JimKshortstep4x4 · 07-22-2002, 08:33 AM

Welcome from Western, MI! Good luck on your brakes, bleeding the rear brakes can be very difficult.

Instead of bench bleeding the master cylinder, we bleed after the prop valver and return the fluid to the master cylinder with plastic tubing. (If you submerge the tubing, you can bleed the brakes by yourself).

Jim

68 with 350 TPI · 07-22-2002, 09:54 AM

I would go ahead and get some new wheel cyls and then repeat what you have done.

Also make sure the rod dident mess up behind the master cyl.

*Randy70C-10* · 07-22-2002, 10:36 AM

Nice truck, welcome to the board! If you can't get the brakes to work, Summit racing sells parachutes.

HIGH724X4 · 07-22-2002, 01:28 PM

Welcome to the board!!1, From Indiana!!!

Gordo · 07-22-2002, 04:21 PM

Welcome from Connecticut!
Be sure that the linkage is allowing the piston within the master to return ALL THE WAY BACK when released. This will give you those syptoms also. This could be from an incorrect master and or linkage adjustment/problem. Good luck and keep us posted.

72BACK2NU · 07-22-2002, 07:01 PM

Good lookin truck. Good luck on the brakes. Your in the right neighborhood for fixit tips. Cya

**68SWB4x4** · 07-22-2002, 07:53 PM

welcome to the board, good to have more california members .... especily with 4x4s! id go ahead and for sure put new wheel cylinders on...... go ahead and replace the drums and everything while your at it...... the parts arnt to expensive and brakes are very important! (im saying this and like longhorn i have delayers.... lol)

chevyman 68 C/10 · 07-22-2002, 08:34 PM

Great truck and welcome to the board!!!

Wasted Income · 07-22-2002, 08:45 PM

Welcome from the land of Beer and Cheese

Cool Truck!!

meathead95 · 07-22-2002, 09:27 PM

welcome from nashville!

Duner97 · 07-23-2002, 08:42 PM

Hey guys, thanks for the welcome, as well as the suggestions and compliments. Once i get some time, I'm going to go get some wheel cylinders and see what that does for me. I'll check out the rod and see how it looks also.
after this problem is solved I'm going to figure out which tranny seal leaks, and replace that. the previous owner says the fluid will come out about as fast as it goes in

07-22-2002, 03:42 AM	#1
Duner97 Registered User Join Date: Jul 2002 Location: Arroyo Grande, CA Posts: 125	Another new guy Been visiting the site off and on for a couple years, ya know checkin out stuff every now and then. I bought a 72 Cheyenne shortbed fleetside 4x4 about a month ago. Its been my dream truck and now i have one, so this is my new project. its gonna be one of those slowly but surely types of things. It's got a 327, turbo350 AC PB PS. She runs like a top, but wont stop for anything! it has been sitting for years, and the brakes dont work. i bought a new master cylinder, slapped it on and they worked, a lil spongy, but they stopped me! so i bled em once more and after that, no brakes, so i'm back to where i started! __________________ 72 SB 4x4 -Duner97

07-22-2002, 03:56 AM	#2
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Brakes Have you been under it to check and see if there is fluid running out at one of the wheels. If it sat for a long period of time I would suggest a shop look at it. You said you bleed them a couple of times did you refill the brake fluid. I would check the back brakes and all the lines to see if any thing is missing. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

07-22-2002, 04:07 AM	#3
Duner97 Registered User Join Date: Jul 2002 Location: Arroyo Grande, CA Posts: 125	Yup, I've looked around for a leak and found nothing out of the ordinary. I refilled the fluid level and it's fine. it just seems as if it sucked in in air. If i get time, i'll take the master cylinder off, and bench bleed it again. If it works after that, I'll have a better idea where to start lookin. I should probably go ahead and get new wheel cylinders for the rears since its probably been a while since its had new ones. Forgot to mention, the truck is real straight except for a dent on the bottom front corner of the bed on the right side and dented rockers from being highcentered and the only rust i have found is surface rust on the floorboards... and i picked her up for $4250. __________________ 72 SB 4x4 -Duner97

07-22-2002, 09:54 AM	#7
68 with 350 TPI Registered User Join Date: May 2002 Location: Wingate NC Posts: 456	I would go ahead and get some new wheel cyls and then repeat what you have done. Also make sure the rod dident mess up behind the master cyl. __________________ Life is good with a 6-71 supercharged 355 in a 72 camaro

07-22-2002, 01:28 PM	#9
HIGH724X4 Registered User Join Date: Nov 2000 Location: LAWRENCEBURG, INDIANA Posts: 298	Welcome to the board!!1, From Indiana!!! __________________ 72 CHEVY FLEETSIDE 4X4 K10 (SOLD TO JAMIE72, BUT BLAZER GAL PULLED AWAY WITH IT LOL!!!) Will Own one Again!!! 1967 CAMARO (PRO-TOURING PROJECT) Lawrenceburg, Indiana.. AOL IM: kbillcad

07-22-2002, 04:13 AM	#4
Super Chevy Registered User Join Date: Feb 2001 Location: Ohio Posts: 1,025	Nice lookin truck hope you get your brake prob's solved...

07-22-2002, 07:16 AM	#5
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Welcome from Ohio. Brakes are over rated anyways...mine are more like delayers

07-22-2002, 08:33 AM	#6
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Welcome from Western, MI! Good luck on your brakes, bleeding the rear brakes can be very difficult. Instead of bench bleeding the master cylinder, we bleed after the prop valver and return the fluid to the master cylinder with plastic tubing. (If you submerge the tubing, you can bleed the brakes by yourself). Jim

07-22-2002, 10:36 AM	#8
Randy70C-10 Account Suspended Join Date: Mar 2001 Location: Virginia Beach, Va. U.S.A. Posts: 15,320	Nice truck, welcome to the board! If you can't get the brakes to work, Summit racing sells parachutes.

07-22-2002, 04:21 PM	#10
Gordo Registered User Join Date: Jan 2001 Location: Killingworth, CT. USA Posts: 3,378	Welcome from Connecticut! Be sure that the linkage is allowing the piston within the master to return ALL THE WAY BACK when released. This will give you those syptoms also. This could be from an incorrect master and or linkage adjustment/problem. Good luck and keep us posted. __________________ 1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist.

07-22-2002, 07:01 PM	#11
72BACK2NU Registered User Join Date: May 2002 Location: White City, OR Posts: 52	Oregon welcome Good lookin truck. Good luck on the brakes. Your in the right neighborhood for fixit tips. Cya __________________ 72 GMC C1500 2WD LWB White City, OR As for me and my house, we shall serve the Lord. Looking for Oregon 72 GMC donor w/PS & column-shift auto

07-22-2002, 07:53 PM	#12
68SWB4x4 Strongman Garage Join Date: Apr 2000 Location: Salinas, CA Posts: 10,241	welcome to the board, good to have more california members .... especily with 4x4s! id go ahead and for sure put new wheel cylinders on...... go ahead and replace the drums and everything while your at it...... the parts arnt to expensive and brakes are very important! (im saying this and like longhorn i have delayers.... lol) __________________ Kalle 68 GMC Suburban 1500 4x4 SOLD 69 Pontiac Lemans 99 Silverado 4.8 5 speed ECSB [ Facebook Instagram Subscribe on YOUTUBE

07-22-2002, 08:34 PM	#13
chevyman 68 C/10 Registered User Join Date: Feb 2002 Location: Gilmer, Texas USA Posts: 313	Great truck and welcome to the board!!! __________________ 69 Chevy short fleet side soon to have LT1 and 4L60E pb. ps cruise and air. 68 Chevy short fleet side 400 sb 5 inch chop top pb. ps. pw. 350 auto and shaved handles 68 anniversary no engine long wheel base 400 auto FOR SALE 68 Chevy fleet side long wheel base complete parts truck.

07-22-2002, 08:45 PM	#14
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	Welcome from the land of Beer and Cheese Cool Truck!! __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2016 Ford Explorer Sport - Twin Turbskis 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

07-22-2002, 09:27 PM	#15
meathead95 computer illiterate Join Date: Jan 2001 Location: Des Moines, IA Posts: 6,446	welcome from nashville! __________________ 72 2wd blazer 72 swb 4x4



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07-23-2002, 08:42 PM	#16
Duner97 Registered User Join Date: Jul 2002 Location: Arroyo Grande, CA Posts: 125	Hey guys, thanks for the welcome, as well as the suggestions and compliments. Once i get some time, I'm going to go get some wheel cylinders and see what that does for me. I'll check out the rod and see how it looks also. after this problem is solved I'm going to figure out which tranny seal leaks, and replace that. the previous owner says the fluid will come out about as fast as it goes in __________________ 72 SB 4x4 -Duner97

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