Originally Posted by
sosam117
Ed,
I have used a scotch brite pad and a small dowel to get to the top to clean off the carbon on the contra piston.
Cut the scotch brite pad into a strip that is 1/2" wide, now use a 1/4" dowel and fold the 1/2' strip of scotch rite over the dowel and shove it into the piston sleeve.
turn the dowel while holding the scotch brite in place. The pad will remove the carbon build up on the contra piston and transfer ports.
After doing this you'll have to treat your engine as if it is a new one and do a break-in period again.
sosam117
Thank you for your advice. I have installed a replacement con rod in the PAW .19 and have run it once.it seems ok.
the next time I have the head off, l will try your removal method. Thanks again, Ed Stout