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

Page 4

•

Covers #31-6059 and #31-6060 have 1991 and earlier mounting bolt pattern. Cover #31-6059 allows builder to choose top or bottom location for oil line
fittings and has provision for primary chain oiler and oil pressure sending unit if desired. Cover #31-6060 accepts bottom-mount fittings only and has no
provision for sending unit or primary chain oiler. See Picture 6.

Picture 6

•

Covers #31-6061, #31-6062, and #31-6063 have 1992 and newer mounting bolt pattern. "Universal" cover #31-6061 allows builder to choose top
or bottom location for oil line fittings and has additional provision for supply line fitting in face of cover. Cover #31-6062 has no provision for
top-mounted oil line fittings but otherwise is similar to cover #31-6061. "Custom" cover #31-6063 accepts bottom-mount oil line fittings only. See
Picture 7.

CAUTION

Picture 7

•

Oil pump covers are described in more detail in Section 7.

Bottom-mount oil supply line fitting is not recommended for models with oil tank below transmission because of possibility of cavitation
or "air lock" occurring during oil changes. See page 17 for information on preventing cavitation.

NOTES

•

Only one supply and one return hole will be used.

•

Hole #3 for oil pressure switch/gauge will supply adequate pressurized oil for top end lubrication in panhead-shovelhead and similar applications.
However, S&S® does not recommend this practice because oil from hole #3 bypasses hydraulic lifter filter screen. Builder assumes responsibility for any
damages caused by using hole #3 for top end oil supply.

1. Top oil return hole
2. Top oil supply hole
3. Oil pressure switch or gauge hole
4. Lower oil supply hole
5. Lower oil return hole
6. Middle oil supply hole
7. Front chain oiler hole

31-6059

31-6060

31-6061

31-6062

31-6063