S&S Cycle Big Twin Oil Pump Kits - Manual (Page 13)

13
Following steps provide detailed instructions
on installing fittings in different billet covers
CAUTION - Hole #5 in billet pump cover #31-6041 is for
oil pressure switch or gauge. See Picture 28. Although oil
obtained from this site may provide adequate top end
lubrication for some applications (Shovel top on Pan
bottom), S&S recommends site be used for pressure
monitoring only as oil from hole #3 does not go through
lifter screen. Under no circumstance may oil return line
be routed to hole #3.
Steps below are typical for year groups shown.
a. 1936-1991 using pump cover #31-6041
1. Install 90
°
elbow fitting #31-6008 in
hole #2 in top of pump cover or hole
#4 in bottom of cover. See Picture 28.
2. Install hose fitting #31-6009 in elbow
fitting installed in step a.
3. Install 1 ⁄
8
-27 pipe plug #31-6007 in
supply hole not used.
4. Install oil pressure switch/gauge
elbow (not supplied) or 1 ⁄
8
-27 pipe plug
#31-6007 in hole #3 in face of cover.
Do not attempt to use hole #3 for oil
return line.
b. 1936-1991 using Custom Billet cover
#31-6045
1. Install 90
°
elbow fitting #31-6008 in
hole #4 in bottom of cover. See
Picture 29.
2. Install hose fitting #31-6009 in elbow
fitting installed in step a.
c. 1992-up using cover #31-6044
1. Install 90
°
elbow fitting #31-6008 in
hole #9 in face of pump cover or hole
#4 in bottom of cover. See Picture 30.
NOTE - Elbow fitting must be installed in hole #9 with
opening facing downward and angled toward lower
left corner of cover for use with ‘92-up Dyna-type OEM
oil lines.
2. Install hose fitting #31-6009 in elbow
fitting installed in step a.
3. Install 1 ⁄
8
-27 pipe plug #31-6007 in
supply hole not used.
d. 1992-up using cover #31-6047
(Supplied with most S&S Long Blocks.)
1. Install 90
°
elbow fitting #31-6008 in
hole #2 in top of pump cover, hole #9
in face of pump cover, or hole #4 in
bottom of cover.
NOTE - Elbow fitting must be installed in hole #4 with
opening facing downward and angled toward lower
left corner of cover for use with ‘92-up Dyna-type OEM
oil lines.
2. Install hose fitting #31-6009 in elbow
fitting installed in step a.
3. Install 1 ⁄
8
-27 pipe plugs #31-6007 in
supply holes not used.
2. Oil return - Oil return line can be connected
to pump cover at either of two locations in
oil pump covers #31-6041, #31-6044 and
#31-6047. Hole in bottom of cover is
normally used for 92-up models utilizing
OEM rigid return line. Steps below are
typical for year groups shown.
a. 1936-1991 using cover #31-6041
1. Install 90
°
elbow fitting #31-6008 in
hole #1 in top of pump cover or hole
#5 in bottom of cover. See Picture 28.
2. Install hose fitting #31-6009 in elbow
fitting installed in step 1.
3. Install 1 ⁄
8
-27 pipe plug #31-6007 in
return hole not used.
b. 1936-1991 utilizing Custom Billet cover
#31-604
1. Install 90
°
elbow fitting #31-6008 in
hole #5 in bottom of pump cover. See
Picture 29.
2. Install hose fitting #31-6009 in elbow
fitting installed in step 1.
c. 1992-up using cover #31-6044
1. Install 90
°
elbow fitting #31-6008 in hole
#5 in bottom of cover. See Picture 30.
NOTE - Elbow fitting must be installed in bottom hole with
opening facing forward toward engine for use with ‘92-up
OEM rigid return line. See Picture 31.
2. Install compression fitting # 50-8120
or hose fitting #31-6009 in elbow
fitting installed in step 1.
NOTE - Compression fitting must be used with ‘92-up
OEM rigid return line.