I know you guys consider anything Husky to be associated with the mark of the beast. But I was hoping for a little compassion on this one (and I own a PA-12).
The left brake is dragging on our 1987 Husky, S/N 10.
A few landings prior to the noticeable dragging I had the left brake pedal go all the way to the stop. After I got the plane stopped, I reached down and pulled the pedal back to the rear and then pumped it a few times, all seemed normal.This certainly got my attention as it was on a short strip. I then flew home and cleaned,lubed, checked tire clearance, changed caliper O-rings and bled the system. Also at the same time I did this servicing we installed some '26 Bushwheels. I went up for a flight and when I landed the left brake felt normal but it is now dragging. There is no tire rubbing and clearance is not an issue. The caliper definitely is not fully releasing. Checked clearance again, bled the system, same results, still dragging.
I then pulled the master cylinder apart and it looks good with nothing obvious. But who knows? I decided maybe I could get an overhaul kit for it as they were all original. I've been an A&P for quite awhile but have never seen a master cylinder quite like this. It has Scott stamped on it and "A3Q86" or "A3086" lettered on the side. I couldn't find a reference for it anywhere. I called the friendly (not) lady at Aviat and she said they no longer used this type master cylinder. Cool, so what is the Scott part number I asked? Don't know. Seriously? Yes. Unbelievable.
It kinda looks like a Gerdes and Matco cross pollination. Any help,suggestions or insight is appreciated. Thanks.
The left brake is dragging on our 1987 Husky, S/N 10.
A few landings prior to the noticeable dragging I had the left brake pedal go all the way to the stop. After I got the plane stopped, I reached down and pulled the pedal back to the rear and then pumped it a few times, all seemed normal.This certainly got my attention as it was on a short strip. I then flew home and cleaned,lubed, checked tire clearance, changed caliper O-rings and bled the system. Also at the same time I did this servicing we installed some '26 Bushwheels. I went up for a flight and when I landed the left brake felt normal but it is now dragging. There is no tire rubbing and clearance is not an issue. The caliper definitely is not fully releasing. Checked clearance again, bled the system, same results, still dragging.
I then pulled the master cylinder apart and it looks good with nothing obvious. But who knows? I decided maybe I could get an overhaul kit for it as they were all original. I've been an A&P for quite awhile but have never seen a master cylinder quite like this. It has Scott stamped on it and "A3Q86" or "A3086" lettered on the side. I couldn't find a reference for it anywhere. I called the friendly (not) lady at Aviat and she said they no longer used this type master cylinder. Cool, so what is the Scott part number I asked? Don't know. Seriously? Yes. Unbelievable.
It kinda looks like a Gerdes and Matco cross pollination. Any help,suggestions or insight is appreciated. Thanks.