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S&S Cycle Billet Oil Pump for Big Twin Engines User Manual

Page 13

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B. Using 1⁄4 -20 tap, Carefully tap hole deep enough for 1⁄4-20 allen head set screw supplied in kit to bottom out with screw head .125" to .150"

below gear cover gasket surface. See Pictures 24 and 25. Remove tap periodically, clear chips, and install set screw to check depth.

Picture 24

Picture 25

NOTE - Do not tap hole so deep that screw blocks tappet screen oil feed passage, inadvertently restricting oil supply to lifters and cylinder heads.

Restricted oil supply may cause extensive engine damage.

C. Remove oil plug and lifter screen filter assembly. Blow air in top end supply hole directly below top right pump mounting bolt hole to

remove chips and ensure that passage is not blocked. See Picture 26.

CAUTION

Picture 26

Compressed air and particles dislodged by compressed air are potentially harmful. Wear protective goggles when using compressed air
and direct air stream away from yourself and others nearby.

WARNING