I wonder what is the best way to clean off the top of the pistons. The
'manual' says to carefully remove the carbon from the pistons. How do you
do that safely while the pistons are in the engine?
I need to get the intake valve fixed cause the 85% leakdown is not going to
cut it.
I will snap some pics of my timing chains/gears and post them so y'all can
take a gander at their condition.
How do I rotate the piston to TDC when the cam gear/timing chain is affixed
to the mount thingy?
Daniel Neuman
Oakland CA
> Andy
> If you are going to sand on the piston you should remove it from the
motor.
> You don't want all that aluminum powder going into the motor. I've had a
> Kawasaki and a roadster motor run for a long time with beat up pistons.
> Both had dents where the PO installed spark plugs that were a little too
> long. I didn't seem to notice any detonation because of the gouges. A
> concern might be that a crack could form around the rough edges.
Since the dings don't appear to be too close to the edge of the piston do
you think he might be able to use a sanding drum on a Dremel and a heavy
duty shop vac with a 1 1/4 hose to suck up the "dust"? I'd just as soon not
have the sharp edges sticking up in the chamber. With the piston at or near
TDC you could maybe stick thin cardboard or thick paper between the piston
and the cylinder. That would help keep crud from between the two.
Unless they'd been replaced recently, I think I'd also replace at least both
timing chains and, depending on their condition, the gears. You've already
got it apart. The chains should be around $100. Not sure on the gears.
FWIW,
Ron
|