50
DE534A
11. Rotate the engine until the injector lobe forces the
camshaft follower to its highest position; then insert
a hardened locking pin into the hole in the injector
pump barrel.
DE404A
DE329B
12. Repeat step 11 for the second injector. Account for a
flame washer and copper washer for each injector.
Servicing
Proper servicing of fuel injection components requires a
number of special instruments, special training, and an
extremely clean environment (clean room); therefore,
Arctic Cat recommends injector service be performed by
a qualified diesel injection service facility.
Installing
1. Thoroughly clean the injector bores in the cylinder
head; then dry with compressed air.
DE567A
NOTE: A small round wire brush can be used to
clean injector bores and seating surfaces.
2. Clean the unit injector with a soft wire brush being
careful not to damage the injector tip.
DE565A
3. Measure the injector nozzle protrusion (A). Measure-
ment should be 6.80-7.05 mm (0.268-0.277 in.).
Excessive protrusion may be corrected by installing
supplemental washers available in 0.25 mm (0.001
in.) sizes along with the standard copper washers
(B).
DE566A
CAUTION
DO NOT loosen the jam nut or the injector timing adjust-
ment screw. This will require timing the injector.
! WARNING
Always wear safety glasses when using compressed
air.
