|02-15-2009 09:17 PM|
|blyne3||Do Not Hone An Aluminum Master Cylinder!|
|02-09-2009 07:38 PM|
|Henry Highrise||I have over the years re-built master cylinders as well as wheel cylinders. Just clean them up, hone them out, and replace the rubber cups or O rings etc. I found they did not hold up like mew ones. But then I got to thinking about it....You do take off some metal honing and increase the bore size just a tad. The rubber parts are still standard size not oversized a tad to compensate. I then quit doing it....brakes are just too important to play around with. Even the rebuilt parts. I always buy new parts and I like the name brand stuff like Wagner, etc. It might cost more but it could save your life or somebody elses.|
|02-09-2009 07:31 PM|
|02-09-2009 06:36 PM|
|Cape Cod Bob||I haven't had one apart since they were singles, but we used to just put in a new "O" ring. Maybe a little honing if needed. Much cheaper.|
|02-09-2009 05:55 PM|
Now I am just imagining it corroding my dang booster..
Maybe I will just try and spray some wd-40 back there.
|02-09-2009 05:48 PM|
|02-09-2009 05:11 PM|
|eloc431962||i agree with Henry.i have had it happen to me .and seen it on others also.m c goes bad bypassing to the booster.good call henry.|
|02-09-2009 04:58 PM|
|weirdbeard||Oh yeah Bryan it is a scary feeling when that brake pedal sinks to the floor! My heart sinks with it every time.|
|02-09-2009 04:55 PM|
I pulled the M.C. off today and there was brake fluid behind it! I installed another one and it seems fine for now.
It really makes me mad that they can't make these parts last longer than a year.
Just ain't right.
|02-08-2009 04:06 PM|
Went thru about 4 of these things in the 80s on my 79.
Silly brakes only worked when they wanted to.
Scary feeling when the pedal goes to the floor, eh?
Must have got a good one last time around----still working like it shoud.
|02-08-2009 03:59 PM|
|weirdbeard||That's what I am thinking too HH. Just don't seem right cuz the M.C. is so new, but I did get it from Advance.|
|02-08-2009 03:53 PM|
|Henry Highrise||Sounds like the master cylinder has gone bad...it is bypassing around the piston. Get a new master cyl. Bench bleed it and install it and bleed your brakes and you should be good to go.|
|02-08-2009 03:35 PM|
Brake pedal goes to floor after 4 day sit.
I got back from a trip yesterday and started my 98 Yukon after 4 days of not driving it. It started fine, but when I tried to use the brakes the dang pedal sank to the floor and the brake light came on the dash for a second.
I got it home and this morning inspected and bled the brakes. Its better, but still not right at all.
The master cylinder is only about a year old. I don't see any leaks.
What could cause this?