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Index > Trucks or Parts WANTED > Thread: Brake master cylinder
Thread: Brake master cylinder [' This thread is 2 pages long: 1 (2) ']
davesrepu


Revvin Up
Posts: 66
posted October 09, 2007 07:37 AM

I located a remanufactured master cylinder, (just the bottom part) from Napaonline, so I'll go with that. Hopefully I won't have the same problem that mypayne had with his. RockAuto called yesterday to let me know if I sent them my master cylinder they would send it out to be rebuilt. As rare as these things are, I didn't want to take that chance. The company that does the rebuilds will not sell the rebuild kit because of liability issues.
I am impressed with RockAuto's customer service, they called me to let me know that rebuild service was available. They also have new clutch slave cylinders and clutch master cylinder rebuild kits for anyone that is interested in that.
Thanks to all for your help, Dave

       
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Brad


Rotorhead
Posts: 1672
posted June 30, 2008 12:18 PM

How did it go?

Dave did you get the resivoir into the rebuilt cylinder okay? Any tips or tricks? Does it leak?

I have a new brake master cylinder on the way as mine won't make pressure.
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge

       
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davesrepu


Revvin Up
Posts: 66
posted June 30, 2008 05:49 PM

It turns out that it wasn't the right one either and I haven't had time yet to get back to looking for one. Where did you find yours?

       
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Brad


Rotorhead
Posts: 1672
posted June 30, 2008 10:20 PM
Edited By: Brad on 30 Jun 2008 22:21

got mine from napaonline too.



http://www.napaonline.com/MasterPages/NOLMaster.aspx?PageId=470&LineCode=TS&PartNumber=111781&Description=Brake+Master+Cylinder+-+Remfd

It looks like the right one to me, but I've been wrong before. Why was it not the right one? Did they send a b1600 one for 4 wheel drum brakes?






Brake Master Cylinder - Remfd


Item#: TS 111781

Price: $36.99
tax and shipping not included

Disclaimer: The stated price may vary from the in store price and may change at anytime.


Attributes:
Features & Benefits:100% OE Quality New Seals Are Installed On Every Unit. OE Performance And Reliability.
# of Line Ports:2
Bore Size:0.87500
Finish:Rust-Preventative Finish
Line Thread Size:M10-1.25
m10-1.25

       
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davesrepu


Revvin Up
Posts: 66
posted July 01, 2008 11:45 AM

I got mixed up, it wasn't that it was the wrong one, NAPA didn't have it in stock at the time and did not know when it would be in stock. I just re-ordered from them so we'll see what happens.

       
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davesrepu


Revvin Up
Posts: 66
posted July 11, 2008 04:39 PM

Hey Brad, just a little heads up. My master cylinder got here today so I decided to install it. It turns out that the "joint bolt", as the manual calls it, going to the rear brakes has the wrong threads. At first I thought I was cross threading the fitting, but that wasn't the case. The threads are definitely finer than the original. I just swapped it out with the old one and it worked fine. Just make sure you check that first before you install yours.

       
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Brad


Rotorhead
Posts: 1672
posted July 16, 2008 08:01 AM

cool, thanks for the heads up Dave

I'll be sure to check that.

Does the resivoir leak at all?

Mine arrived yesterday. Took 15 calendar days.

To everyone, there should be 7 left in stock after Dave and I bought ours. And these are discontinued. So when they're gone, they're gone. Get them while you can.
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge

       
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ovquick


Redlining
Posts: 253
posted July 16, 2008 12:30 PM

Brake Master Cylinders

Napa online, there are 7 in the Montebello wearhouse and some 54 in a Pensylvania wearhouse.(phone check today)
____________
Manteca Mazda Asylum
where a boy and his cat live, without adult supervision

       
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Brad


Rotorhead
Posts: 1672
posted July 16, 2008 01:16 PM

wow

Guy I talked to didn't know about the 54.. That's good news and thanks OVQUICK.
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge

       
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davesrepu


Revvin Up
Posts: 66
posted July 16, 2008 02:39 PM

Hey Brad,
I haven't had time to fill it yet so I don't know if it leaks. I really don't think there will be a problem because the reservoir has a very tight fight when you snap it in place. I had a couple hour break the day the master cylinder got here so I decided to install it. It should have only taken a few minutes, but with my typical luck I ran into the thread problem. I know the threads were wrong because the fitting for the front brakes screwed into the rest of the joint bolts perfectly, but just not that one. I hope to have a little break in the action in about a week and a half, so I'll get back to work on it.

       
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Brad


Rotorhead
Posts: 1672
posted July 23, 2008 11:44 AM

installed mine

it was a bear to get the resivoir into the master cylinder. finally tapped it in with a 10lb deadblow hammer slowly and carefully. It doesn't leak.

i'm not sure it's functional as my brake pedal is low and spongy. i've bled the whole system several times and still no luck. drove around the neighborhood slow but can't take it out on the road.

i think there is no pressure between the two pistons in the m/c. the front piston is not moving until the rear piston hits it. so the front brake action is delayed big time. ugh.
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge

       
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repu74


1st Gear
Posts: 42
posted September 03, 2008 09:07 PM

Brake trouble

Brad,
how did you make out on your brake issues?

       
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Brad


Rotorhead
Posts: 1672
posted September 04, 2008 08:54 AM

brake issues

I think some debris got into my brake master and hosed the front, secondary piston or bore. Rebuilt it with new rebuild kit, a little better but still not driveable.

Got the new brake master from NAPA, tapped my resivoir into it with a 10lb dead blow hammer since there was no way it'll go in by hand. The bench bleeding went much better and I did get all the air out but it wouldn't move fluid in the front brake fitting until the rear piston made contact with the front piston.

Installed it anyway, still have mushy pedal. Brake pedal stuck at full push. Bled old fashioned way and with MITYVAC, still mushy. Adjusted pedal height and a million ways to Sunday. Had my brake booster rebuilt, finally got a hard pedal. I was all amped then stood on the brake pedal hard to make sure it'll hold and then it gave up, pedal moved down 2 inches back to mushy brake pedal.

So........ after all the dramas....... I'm off to junkyard to find a brake booster and see if that really was my mushy brake pedal. And send my REPU rebuilt booster back to be checked/fixed. It doesn't hold vacuum I believe because pedal doesn't get harder and higher when pumping pedal repeatedly with engine off.
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge

       
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