GM master cylinder question

[oldsman496]

Mike, you can get a rebuild kit for the original MC for about 20.00, if you can run a brake hone through it and install new seals it fixes a ton of problems. On the other hand, I went onto RockAuto and a rebuilt master cylinder is 20.00 plus or minus a buck or two for a 79 Trans Am with 4 wheel discs. I'd replace the one you have if you are satisfied with it.

!

OK - I found out this morning that I can get a newly rebuilt master for a 79 T/A w/discs for all of $17.99 (lifetime guaranteed).... I also found that the weight I would be saving is about 3.5 pounds and all of the aluminum masters have the metric fittings... someone else mentioned to me that they have seen allot of the plastic resevuiors (did i skell that rong?) that weep fluid, but the cast iron jobs - obviously - cannot... and a rebuild kit here is almost $22.00...?......

I am seriously bummed about my monetary situation (working hard to change that) because I've always had the mantra that any part that wore out should be upgraded at that time... but not this one. I'm gonna get the stock replacement and be done with it... but I may be posting in a few months asking for more advice on that covette cylinder... ..They want $66.00 for one, and its also metric. I really like the look of the aluminum and the weight savings, but for now... its gonna be cast iron.... Thanks for all the responses.... it's very much appreciated.

[TC]

Uh... yeah, it is, unless you want a rock hard pedal and / or a MC setup that won't stop you. That's kind of like saying the pushrod ratio is not that big of an issue when you go from Power to Manual. It is.

I already played that argument when this came up the last time and you guys all shot me down for saying what you just said......

[Beagle]

nun unh ^^ did not did not neener neener... I stayed out of that one.

Mike, on the Fords at least, it's just the fittings that are metric. The brake line tubing is still in inches. If you can get the flaring tools, you can put the metric ends on it easy enough. I think your choice is wise.

[TC]

nun unh ^^ did not did not neener neener... I stayed out of that one.

Mike, on the Fords at least, it's just the fittings that are metric. The brake line tubing is still in inches. If you can get the flaring tools, you can put the metric ends on it easy enough. I think your choice is wise.

Speaking of Flaring Tools, I'll be throwing down some how to plumb a fuel system tech here in the next few weeks.......

[oldsman496]

Speaking of Flaring Tools, I'll be throwing down some how to plumb a fuel system tech here in the next few weeks.......

A good quality flaring tool is important...the cheap ones will make leaker fittings... I spent the dough for a decent set years ago and it has paid for itself several times now... I got my replacement master installed and didn't have to change a fitting ( i should have though, they are rusty and look bad). I now have good solid brakes that don't slowly fall to the floor.....


ed- and i spent less than $25 including a can of brake fluid

[Beagle]

I think it was Freiburger and / or Dulcich... minimum requirements for driving a car with risky or dysfunctional MC (choose 2):

a) manual transmission
b) working emergency brake
c) working horn

man I hate that sinking pedal feeling. Good call!

[oldsman496]

I think it was Freiburger and / or Dulcich... minimum requirements for driving a car with risky or dysfunctional MC (choose 2):

a) manual transmission
b) working emergency brake
c) working horn

man I hate that sinking pedal feeling. Good call!

Uh - i uh.... well... i uh....stammer, stammer....... I actually drove a 75 ventura (when i was 21 or so...) for 4 months every day to work about 15 miles a day with no brakes. I mean none, nada, zip.... and the clutch linkage was broken also... to start from a stop, you just hit the key and it would jerk and go.... and to stop, you did the reverse. turn off the key. i never claimed to be real bright... One day I misjudged the stopping distance and it was either a big bush to stop me or a new fiat convertible. I chose the bush. ate the steering wheel, loosened my front teeth real good and shattered the windshield with my forehead. i was doing all of about 10 miles an hour and i thought i could stop myself from smacking the windshield by grabbing the wheel real hard. broke my wrist too.

from that day forward i never drove without a seatbelt on... I fixed the brakes a week later and the clutch a few days after that

young n dumb