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71blazervt · 05-28-2012, 08:09 PM

new issue with the brakes. I went to start it up today and the brake pedel went to the floor again, brake light came on. The fluid is all the way up and there is no leaks. after running for about 15 minutes the pedel came back up and brakes are working again. Will try again tomorrow to see if it happens again. Anybody know what is going on?

jaros44sr · 05-29-2012, 09:26 AM

Quote:

Originally Posted by 71blazervt

new issue with the brakes. I went to start it up today and the brake pedel went to the floor again, brake light came on. The fluid is all the way up and there is no leaks. after running for about 15 minutes the pedel came back up and brakes are working again. Will try again tomorrow to see if it happens again. Anybody know what is going on?

Maybe a vacuum leak, or the vacuum unit on the master cylinder. Just a guess, but you said there wasnt any air in the lines, right?

Ole Beater · 05-29-2012, 04:16 PM

Usually if its a vacuum leak the engine will change idle when you step on the brake.

71blazervt · 05-31-2012, 06:44 AM

these brakes are driving me nuts. the pedel is up while the engine is running now. But, the back brakes are locking up when I go to stop.

jaros44sr · 05-31-2012, 11:38 AM

Quote:

Originally Posted by 71blazervt

these brakes are driving me nuts. the pedel is up while the engine is running now. But, the back brakes are locking up when I go to stop.

Did you adjust them out with the star wheel

71blazervt · 06-05-2012, 11:40 AM

took the cap off today for the first time

fxdxharley · 06-05-2012, 12:06 PM

Looks good. Im assuming are you able to drive it now?

71blazervt · 06-05-2012, 12:24 PM

still have brake issues. It is going almost to the floor with the motor on. it is stopping but the back brakes are locking up for a while then they work ok. the next morning the same thing. I am not comfortable driving it yet.

Rochlow · 06-05-2012, 12:43 PM

I'm betting dollars to donuts that it's the booster or M/C.. I had the same issue with that set up when I had it together. I was told that it was the correct setup for the truck. My next step was to order a new booster and M/C from CPP or ECE..

71blazervt · 06-05-2012, 12:46 PM

Jeff,
I did get a new M/C. I am inclined to think it is the booster also. Where did you get the booster? Was it a rebuild one or new. That explains the pedel going down. But what about the back locking up?

Big J · 06-05-2012, 01:17 PM

This should solve all your problems and improve your braking.
http://67-72chevytrucks.com/vboard/s...04#post2917904

Rochlow · 06-05-2012, 01:32 PM

I bought the booster from the local Carquest here in St. A. However, when I bought the original blazer I took the M/C and booster in and they used it as reference. (The original booster was said to be from an 84, but not positive as it was a frankenstien truck)

I was on the verge of just ordering a M/C and booster from CPP for a disk/drum set up. The issues that you are having are identical to the ones I was having with the same booster.

jonesky2 · 06-06-2012, 01:22 AM

what size lift/tires? your stance is sweet

71blazervt · 06-06-2012, 06:04 AM

4" lift (suspention), 35" tires and I kept the 15" rim look (old school) thanks

71blazervt · 06-06-2012, 02:22 PM

Ok, I am on the road today. The brakes are still doing very strange things. Help, Help. It drove fine and stopped fine. I drove about 2 miles and parked. Turned it off. started it up again drove for another 2 miles parked it left it running for about 5 minutes started driving agin and the brakes started to applying themselves i worked the motor and was lifting the brake pedel up to get home. They were burning. I parked it and after about 20 miniutes the brakes freed up and the pedel is good. Now I am affraid to take it out again for fear it will lock up again.

jonesky2 · 06-06-2012, 05:21 PM

Quote:

Originally Posted by 71blazervt

4" lift (suspention), 35" tires and I kept the 15" rim look (old school) thanks

what brand of lift and tires? Most lifts I have seen sag way bad in the back.

your truck sounds possessed

Have you thought of hydroboost?

71blazervt · 06-07-2012, 09:31 PM

changed out the booster and master with an old one i had. brakes seem ok. they are much harder to push down but stops the truck. After i apply the brakes then take my foot off i have to put my foot under the pedel and lift it up. I think it is because it has been sitting for a few years. If it turns out ok I will buy a new set up just like it. I see just one problem it seems to be leaning to much forward. on level ground the master is not level. it dives in the front. This came off the green blazer in the beginning and i dont remember what it looked like when it was in there.

fxdxharley · 06-08-2012, 12:07 PM

does it have the extra suports from bottom of booster to the fire wall? if not than you will need to find some or fab some. they help with the flex and suport of booster assy.

71blazervt · 06-08-2012, 08:34 PM

the old booster and master is working good. I just ordered the matching ones (rebuilt) this morning. should have in a few days

**Tom Vogel** · 06-09-2012, 08:38 AM

I probably dont need to tell you this, and it wont solve your issues... but. Dont drive it until your brake issue is solved. If those rear brakes lock up on you when you are out driving, you will switch ends and could end up on your top. Just sayin.

71blazervt · 06-13-2012, 06:13 AM

new booster and master should be in today. i ordered the softtop per order of the wife. went way over budget but you cant leave it not completed

Ole Beater · 06-14-2012, 06:19 PM

What kind of paint did you use on your drivetrain and brake drums. It looks good.

71blazervt · 06-14-2012, 06:26 PM

good cleaning degreeser then hit it with brake cleaner, etching primer, 6 coats rustolem color then 6 coats of rustolem clear. all in a can.

71blazervt · 06-18-2012, 05:51 AM

new booster and master are in, problem solved. Bored now. i want to start another project. What do you think this one is worth?

**Tom Vogel** · 06-18-2012, 09:08 AM

Quote:

Originally Posted by 71blazervt

new booster and master are in, problem solved. Bored now. i want to start another project. What do you think this one is worth?

Really? lol

05-28-2012, 08:09 PM	#76
71blazervt Registered User Join Date: Oct 2011 Location: Fairfax, vermont Posts: 111	Re: New to this new issue with the brakes. I went to start it up today and the brake pedel went to the floor again, brake light came on. The fluid is all the way up and there is no leaks. after running for about 15 minutes the pedel came back up and brakes are working again. Will try again tomorrow to see if it happens again. Anybody know what is going on?

05-29-2012, 04:16 PM	#78
Ole Beater Registered User Join Date: Oct 2011 Location: St Petersburg, Florida Posts: 154	Re: New to this Usually if its a vacuum leak the engine will change idle when you step on the brake.

05-31-2012, 06:44 AM	#79
71blazervt Registered User Join Date: Oct 2011 Location: Fairfax, vermont Posts: 111	Re: New to this these brakes are driving me nuts. the pedel is up while the engine is running now. But, the back brakes are locking up when I go to stop.

06-05-2012, 11:40 AM	#81
71blazervt Registered User Join Date: Oct 2011 Location: Fairfax, vermont Posts: 111	Re: New to this took the cap off today for the first time Attached Images

06-05-2012, 12:06 PM	#82
fxdxharley Just a nother gear head Join Date: Jul 2009 Location: Barrington NH Posts: 501	Re: New to this Looks good. Im assuming are you able to drive it now? __________________ 2013 HD FLHX 2000 chevy 2500 6.0l 4x4 3dr 2000 harley fxdx 71 Jimmy 4x4- future crawler/ woods rig 71 blazer (C4 2wd conv project) http://67-72chevytrucks.com/vboard/s...d.php?t=523589

06-05-2012, 12:24 PM	#83
71blazervt Registered User Join Date: Oct 2011 Location: Fairfax, vermont Posts: 111	Re: New to this still have brake issues. It is going almost to the floor with the motor on. it is stopping but the back brakes are locking up for a while then they work ok. the next morning the same thing. I am not comfortable driving it yet.

06-05-2012, 12:43 PM	#84
Rochlow Registered User Join Date: Aug 2006 Location: St. Albans, Vt Posts: 2,520	Re: New to this I'm betting dollars to donuts that it's the booster or M/C.. I had the same issue with that set up when I had it together. I was told that it was the correct setup for the truck. My next step was to order a new booster and M/C from CPP or ECE.. Last edited by Rochlow; 06-05-2012 at 01:51 PM.

06-05-2012, 12:46 PM	#85
71blazervt Registered User Join Date: Oct 2011 Location: Fairfax, vermont Posts: 111	Re: New to this Jeff, I did get a new M/C. I am inclined to think it is the booster also. Where did you get the booster? Was it a rebuild one or new. That explains the pedel going down. But what about the back locking up?

06-05-2012, 01:17 PM	#86
Big J Its lookin' like a Blazer! Join Date: Aug 2003 Location: Gods Country, KY Posts: 1,773	Re: New to this This should solve all your problems and improve your braking. http://67-72chevytrucks.com/vboard/s...04#post2917904 __________________ BAZINGA! My Build

06-05-2012, 01:32 PM	#87
Rochlow Registered User Join Date: Aug 2006 Location: St. Albans, Vt Posts: 2,520	Re: New to this I bought the booster from the local Carquest here in St. A. However, when I bought the original blazer I took the M/C and booster in and they used it as reference. (The original booster was said to be from an 84, but not positive as it was a frankenstien truck) I was on the verge of just ordering a M/C and booster from CPP for a disk/drum set up. The issues that you are having are identical to the ones I was having with the same booster.

06-06-2012, 01:22 AM	#88
jonesky2 Registered User Join Date: Nov 2009 Location: Hooper Utah Posts: 224	Re: New to this what size lift/tires? your stance is sweet

06-06-2012, 06:04 AM	#89
71blazervt Registered User Join Date: Oct 2011 Location: Fairfax, vermont Posts: 111	Re: New to this 4" lift (suspention), 35" tires and I kept the 15" rim look (old school) thanks

06-06-2012, 02:22 PM	#90
71blazervt Registered User Join Date: Oct 2011 Location: Fairfax, vermont Posts: 111	Re: New to this Ok, I am on the road today. The brakes are still doing very strange things. Help, Help. It drove fine and stopped fine. I drove about 2 miles and parked. Turned it off. started it up again drove for another 2 miles parked it left it running for about 5 minutes started driving agin and the brakes started to applying themselves i worked the motor and was lifting the brake pedel up to get home. They were burning. I parked it and after about 20 miniutes the brakes freed up and the pedel is good. Now I am affraid to take it out again for fear it will lock up again.

06-07-2012, 09:31 PM	#92
71blazervt Registered User Join Date: Oct 2011 Location: Fairfax, vermont Posts: 111	Re: New to this changed out the booster and master with an old one i had. brakes seem ok. they are much harder to push down but stops the truck. After i apply the brakes then take my foot off i have to put my foot under the pedel and lift it up. I think it is because it has been sitting for a few years. If it turns out ok I will buy a new set up just like it. I see just one problem it seems to be leaning to much forward. on level ground the master is not level. it dives in the front. This came off the green blazer in the beginning and i dont remember what it looked like when it was in there.

06-08-2012, 12:07 PM	#93
fxdxharley Just a nother gear head Join Date: Jul 2009 Location: Barrington NH Posts: 501	Re: New to this does it have the extra suports from bottom of booster to the fire wall? if not than you will need to find some or fab some. they help with the flex and suport of booster assy. __________________ 2013 HD FLHX 2000 chevy 2500 6.0l 4x4 3dr 2000 harley fxdx 71 Jimmy 4x4- future crawler/ woods rig 71 blazer (C4 2wd conv project) http://67-72chevytrucks.com/vboard/s...d.php?t=523589



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06-08-2012, 08:34 PM	#94
71blazervt Registered User Join Date: Oct 2011 Location: Fairfax, vermont Posts: 111	Re: New to this the old booster and master is working good. I just ordered the matching ones (rebuilt) this morning. should have in a few days

06-09-2012, 08:38 AM	#95
Tom Vogel 2WD Jimmy Join Date: Mar 2005 Location: Davis County, Utah Posts: 2,563	Re: New to this I probably dont need to tell you this, and it wont solve your issues... but. Dont drive it until your brake issue is solved. If those rear brakes lock up on you when you are out driving, you will switch ends and could end up on your top. Just sayin.

06-13-2012, 06:13 AM	#96
71blazervt Registered User Join Date: Oct 2011 Location: Fairfax, vermont Posts: 111	Re: New to this new booster and master should be in today. i ordered the softtop per order of the wife. went way over budget but you cant leave it not completed

06-14-2012, 06:19 PM	#97
Ole Beater Registered User Join Date: Oct 2011 Location: St Petersburg, Florida Posts: 154	Re: New to this What kind of paint did you use on your drivetrain and brake drums. It looks good.

06-14-2012, 06:26 PM	#98
71blazervt Registered User Join Date: Oct 2011 Location: Fairfax, vermont Posts: 111	Re: New to this good cleaning degreeser then hit it with brake cleaner, etching primer, 6 coats rustolem color then 6 coats of rustolem clear. all in a can.

06-18-2012, 05:51 AM	#99
71blazervt Registered User Join Date: Oct 2011 Location: Fairfax, vermont Posts: 111	Re: New to this new booster and master are in, problem solved. Bored now. i want to start another project. What do you think this one is worth? Last edited by 71blazervt; 06-18-2012 at 06:01 AM. Reason: spelling

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