PERKO 0343 - Manual

Figure 0343 Scupper
Installation Instructions
With 2 to 4-3/4 Inch Adjustment, Impact Installation
PLEASE READ ALL INSTRUCTIONS BEFORE PROCEEDING
PERKO ® Scupper Figure 0343 is intended to be mounted in a 1-7/8” hole on surfaces from 2” to
4-3/4” thick, and located above the water line. The flange on the inboard side of the scupper should
be as close as possible to the cockpit sole. The scupper valve portion must be mounted outboard
with the “flapper” attachment screw on top.
After drilling the 1-7/8” mounting hole, measure the thickness of the mounting surface. If the
thickness is less than 4-3/4”, the neck of the inboard (female) portion of the scupper can be cut
down by one rib for each 1/4” difference between the actual hull thickness and 4-3/4”. This ensures
that the distance between the scupper flanges is slightly less than the hull thickness, so that the
scupper will fully clinch before bottoming out.
A sealant appropriate for use near the water line should be applied to the outside of the tube of
the outboard (male) part, and around the underside of the flanges for both parts.
Either inboard or outboard part may be installed first. A block of wood or other protective means
should lay flat against the outside flange and the part can be driven in with a few blows of a mallet.
The first part installed should be braced, while the second part is driven in.
Fig. 0343 Scupper
1/05
PERKO, INC.
16490 N.W. 13th Avenue
Miami, FL 33169-5707
www.perko.com