Reply To: 6039 Speeditwin Piston Removal

[Buccaneer]

Piddled in the garage on the Speeditwin while trying to get
the wood fire going. I will be able to get at the rod bolts
without removing the pistons. Tried to loosen the rod bolts,
but they didn’t want to budge and it was impossible to hold
the crankcase steady and use two hands on the screwdriver.
Therefore, I drilled a couple of holes in a piece of angle iron
to mount the cylinder in the vise.

Frank, Please don’t remain silent just because “opposed twins”
aren’t your forte. I had no idea about the piston pin direction
“hole” pointing down as norm, nor could I find anything in
a Johnson or Evinrude manual to help.
Most importantly perhaps, you mention to check the oil holes
in the rods as “UP”……. mine are “down”. Just hope
the lower unit blew up on the first ride after the power head
was last taken apart!

One these opposed twin OMC engines, which cylinder is
designated as #1, Port or Starboard side?
Just thought it would be nice to know in case I find any
old markings on the road caps, etc.
Thanks again.

Prepare to be boarded!