Pipistrel Sinus User Manual

K i t M a n u a l f o r P i p i s t r e l S i n u s a n d V i r u s A i r c r a f t
 There is a need to modify the water pump. The photo below shows which elbows need to
be modified. The bottom right needs to be switched with the 90
o
elbow provided with the
kit, while the upper left elbow needs to be repositioned, so it does not interfere with the
engine mounts. In general, the whole point of modifying the water pump, is to make for
an easier fit to the engine.
 The elbows come fixed to the water pump with green Loctite 648. Thus, using a head
gun, heat the two elbows mentioned above to at least 250
o
Celsius (480 degrees F) and
remove them, being sure not to damage the elbow threads.
 Switch the bottom right elbow with the 90
o
elbow supplied.
 Clean both both elbows with a metal brush and refit them to the water pump.
 You can also sandpaper the face of the water pump a little.
 Now hold the water pump up against the engine and determine how the elbows should be
oriented, so that they don't interfere with the engine's mounts. Mark the positions.
 Take the water pump back to the work bench and apply blue Loctite 243 to the threads of
both elbows and fit them back in the marked positions.
 Remount the water pump on the engine.
http://www.pipistrel.si © Pipistrel Release March 2009 © Page 146 of 267

Pipistrel Sinus Specifications

General

Manufacturer	Pipistrel
Seats	2
Rate of climb	5.5 m/s (1, 080 ft/min)
Ballistic parachute rescue system	Optional
Engine	Rotax 912
Type	Motor glider