S L R M I S S I L E
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Using brass tubing to align the stuffing tube.
11/32 stuffing tube protruding from hull bottom.
Tape prevents epoxy from oozing out.
Mounting Engine
Your engine should be in its 5 inch
mounts, and have some sort of throttle
assembly installed. We like the simple
throttle bell crank.
Remove the carb and header, if
installed.
Install the engine into the pre-drilled holes
if using Zipp 3409 mounts.
Use a ¼ inch drill bit or long bolt to align
the engine to the hull.
Push this from the bottom, through the
slot and hole in bulkhead 3, and into the
collet.
Try to slip a piece of 9/32 brass tubing
over the rod, up to the collet.
If that fits without interference, slip a piece
of 5/16 brass tubing over that, if that slips
on, slide the 11/32 brass stuffing tube
over that. You may have to sand a little to
get the tubes to fit.
When you can slide the 11/32 tube over
the others without moving anything,
it’s
time to glue the stuffing tube.
The stuffing tube is a piece of 11/32 brass
tubing about 3-1/2 inches long.
Rough up the outside of the tube with
coarse sandpaper.
Slip the tube onto the 5/16 tube, until it is
within ¼ inch of the collet.
Tape around the bottom of the tube, so
that no epoxy can seep out.
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