ironworker40
NYC Ironworker
So I have a 1994 F-53 chassis motorhome with 40,000 miles. It has the same brake setup as an OBS f-450. Hydro boost 4 wheel disk. In fact the calipers and pads I know are the same part number as a f 450, both front and rear uses the same calipers and pads.
We put new NAPA pads on it and 2 of the calipers hung up, after installing new pads. Im guessing because they have been all they way out then we pushed them in they hung up. So we replaced all 4 of them with Advanced auto calipers because of time constraints and they were the only place that had them. I sucked all of the fluid out of the master cylynder filled with new fluid bled all of the old calipers until i got new fluid coming out. Then we changed one caliper at a time starting with right rear, left rear, right front, left front. We bleed each one as we went, then did all 4 again.
Brakes stop but not great. They are not hanging up anymore. There are no places around here that cut rotors anymore so we scuffed then with sandpaper which I know isn't ideal but they were fairly smooth and I did not want to replace OEM rotors that have never been cut and are still good with Chinese junk.
So my question is could their be a problem with the hydro boost or master cylnder or both? Pedal is firm so I don't believe it's an air issue. Is there anyone who makes upgrade calipers or better pads?
I know a lot of you on here have vast experience with the hydro boost systems that why I posted here. Thanks in advance.
We put new NAPA pads on it and 2 of the calipers hung up, after installing new pads. Im guessing because they have been all they way out then we pushed them in they hung up. So we replaced all 4 of them with Advanced auto calipers because of time constraints and they were the only place that had them. I sucked all of the fluid out of the master cylynder filled with new fluid bled all of the old calipers until i got new fluid coming out. Then we changed one caliper at a time starting with right rear, left rear, right front, left front. We bleed each one as we went, then did all 4 again.
Brakes stop but not great. They are not hanging up anymore. There are no places around here that cut rotors anymore so we scuffed then with sandpaper which I know isn't ideal but they were fairly smooth and I did not want to replace OEM rotors that have never been cut and are still good with Chinese junk.
So my question is could their be a problem with the hydro boost or master cylnder or both? Pedal is firm so I don't believe it's an air issue. Is there anyone who makes upgrade calipers or better pads?
I know a lot of you on here have vast experience with the hydro boost systems that why I posted here. Thanks in advance.
