[Ducati] Engine sized

[rich lambrechts]

Frank asked...


>>I have a 125 Bronco with a seized engine. I removed the head and filled
the barrel with penetrating oil, but it hasn't budged in three weeks. Any
ideas? this machine was in my basement when I bought the house in 1980 and I
have no idea what its history is.
Thanks, Frank.

Hi Frank...  you can keep soaking and trying and even add some heat to try
to help...  if time and patience run out... the next steps involve more
barbaric measures but will get the parts seperated...       first if you are
lucky and the thing is stuck at or near bottom dead center...you may be able
to raise the cylinder which will allow the crank to rotate...  (assumes the
piston is stuck in the bore and not something in the lower end) and possibly
the wrist pin would be exposed meaning you could push out the pin and then
liberate the cylinder with piston stuck in...  then put the cylinder in a
press with it properly supported and push it out.

Second...you could ( if valves are in closed position) make a fitting to go
in spark plug hole with grease fitting and try to hydraulic it out by
pumping grease in with a grease gun..

last resort...  start drilling holes through the top of the piston as near
as you can to the cylinder wall ( wrist pin will be the stopping point)
which may allow you to break the pinson into parts and get it undone that
way...

rich L