imjoesnuffy
I just break stuff!
- Joined
- Sep 13, 2005
Yes another PM thread. Tried a search but came up empty.
Recently replaced my powermaster with a known good one. Everything worked great. I could launch at 15 psi off the foot brake.
Driving the other day I got the dreaded dead pedal. I managed to lock up the rear brakes before hitting anything.
Get it home and find the 30 amp fuse is blown. Swap it out, nothing. The motor doesn't even come on? Whenever I apply the brakes hard with the motor running, it will blow the 30 amp fuse. Still does this even though the PM is not running. Checked all the wires going to and from and I am getting voltage. Cleaned all the connections, still nothing.
Met a friend today and we switched the accumulator ball, nothing.
Switched out the brake switch on the back of the PM, nothing.
On a recommendation from another friend, I was told to hit it with a 3/8 drive extension and hammer and see if that would help. Thinking along these same lines I wiggled the black box that sits on top of the motor below the reservoir and then turned the key on. BAM... the powermaster starts working. Started the car everything's fine. Apply lots of brake pressure and build boost and the fuse blows.
My question is, what should I do from here? I think I have isolated the problem area, but really dont know what to do from here. How do I remove that black box and clean it/whatever connections are under it? I think that is where my short is. Appears to have metal tabs bent over holding it in place.
Recently replaced my powermaster with a known good one. Everything worked great. I could launch at 15 psi off the foot brake.
Driving the other day I got the dreaded dead pedal. I managed to lock up the rear brakes before hitting anything.
Get it home and find the 30 amp fuse is blown. Swap it out, nothing. The motor doesn't even come on? Whenever I apply the brakes hard with the motor running, it will blow the 30 amp fuse. Still does this even though the PM is not running. Checked all the wires going to and from and I am getting voltage. Cleaned all the connections, still nothing.
Met a friend today and we switched the accumulator ball, nothing.
Switched out the brake switch on the back of the PM, nothing.
On a recommendation from another friend, I was told to hit it with a 3/8 drive extension and hammer and see if that would help. Thinking along these same lines I wiggled the black box that sits on top of the motor below the reservoir and then turned the key on. BAM... the powermaster starts working. Started the car everything's fine. Apply lots of brake pressure and build boost and the fuse blows.
My question is, what should I do from here? I think I have isolated the problem area, but really dont know what to do from here. How do I remove that black box and clean it/whatever connections are under it? I think that is where my short is. Appears to have metal tabs bent over holding it in place.
If the motor is shorting out (which is what the fuse is protecting) then you are into getting another motor anyway.
