need some help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

WEBBY1 · 08-30-2013, 07:51 PM

picked a suburban up and its a little rough.... trying to put the original master cylinder on. i cant seem to take this one off..heres a picture. i didnt try prying it.... really anxious to get this thing rollin...

luvbowties · 08-30-2013, 08:28 PM

Quote:

Originally Posted by WEBBY1

picked a suburban up and its a little rough.... trying to put the original master cylinder on. i cant seem to take this one off..heres a picture. i didnt try prying it.... really anxious to get this thing rollin...

Be careful & NOT pry! I'd say that's a newer than '66 mc as it has TWO fluid lines. Try unfastening the mc push rod from the pedal under the dash and slide out the push rod along with the mc. Once out, you will be able to determine why the push rod is not coming loose from the mc. Through 1966, the mc's(on the pickups, at least) had ONE fluid outlet; AND the push rod was not attached to the mc piston--it just rested against piston, or barely up into piston recess.
HTH; and I know little about the early suburbans--just assuming they use the same mc's as the pickups from the same year.
Sam

duallyjams · 08-30-2013, 08:30 PM

Did you unbolt the rod from the brake pedal ? to pull it out together, it would be much easier to get it apart in a vise.

WEBBY1 · 08-30-2013, 10:17 PM

ill have to do that tomorrow.. it should come free correct? and i should be able to put the rod back in and use the original with no issues? thanks fellas

**Captainfab** · 08-31-2013, 12:44 AM

I agree on unbolting the pushrod from the pedal.

That is a later model master cylinder some of which have the pushrod secured into the back of the piston. I doubt that you will be able to use that pushrod on an original master cylinder.

WEBBY1 · 08-31-2013, 07:20 AM

so basically I should try to make this work? maybe run new break lines from this master? I dont think ill be able to find the original rod. thanks for your help guys..
Posted via Mobile Device

**Captainfab** · 09-01-2013, 12:18 AM

Did someone install that master cylinder and not split the brake lines? Does your truck have front disc brakes? It's hard to tell what master cylinder that is.

Quote:

Originally Posted by WEBBY1

so basically I should try to make this work? maybe run new break lines from this master? I dont think ill be able to find the original rod. thanks for your help guys..
Posted via Mobile Device

08-30-2013, 07:51 PM	#1
WEBBY1 Registered User Join Date: Dec 2011 Location: Royal Oak, Michigan Posts: 193	need some help picked a suburban up and its a little rough.... trying to put the original master cylinder on. i cant seem to take this one off..heres a picture. i didnt try prying it.... really anxious to get this thing rollin... Attached Images

08-30-2013, 08:30 PM	#3
duallyjams Registered User Join Date: May 2007 Location: Deale Md Posts: 4,663	Re: need some help Did you unbolt the rod from the brake pedal ? to pull it out together, it would be much easier to get it apart in a vise. __________________ James 63 GMC V6 4speed carryall 65 chevy swb bbw V8 auto 68 K20 327/4 speed, buddy buckets 2002 GMC CC Dually Duramax 64 GMC lwb 3/4 V6 4speed SOLD 66 GMC swb bbw buddy buckets SOLD IG duallyjams The only thing that stays the same is constant change!

08-30-2013, 10:17 PM	#4
WEBBY1 Registered User Join Date: Dec 2011 Location: Royal Oak, Michigan Posts: 193	Re: need some help ill have to do that tomorrow.. it should come free correct? and i should be able to put the rod back in and use the original with no issues? thanks fellas

08-31-2013, 12:44 AM	#5
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: need some help I agree on unbolting the pushrod from the pedal. That is a later model master cylinder some of which have the pushrod secured into the back of the piston. I doubt that you will be able to use that pushrod on an original master cylinder. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

08-31-2013, 07:20 AM	#6
WEBBY1 Registered User Join Date: Dec 2011 Location: Royal Oak, Michigan Posts: 193	Re: need some help so basically I should try to make this work? maybe run new break lines from this master? I dont think ill be able to find the original rod. thanks for your help guys.. Posted via Mobile Device



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