Sucks, man.
I have a stretch rod bolt or some bad threads in my D15B block, don't know which. I'm about ready to yank that whole thing out of there and start over, I'd really like to move up to a D16 block with PM3's popped in it but I don't have the money at the moment. If I feel like it I might try to go and grab my D16 block and tear it down and put these PM3s in it, get some new rings, bearings, all that junk when I can afford it.
Sigh.
Damn man that sucks which d15b? I got the switch and motor working to find that now the gearbox inside the motor is stripped.