Service manual

12
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 27.
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
#31-6045
1. Install 90° elbow fitting #31-6008 in hole
#5 in bottom of pump cover. See
Picture 28.
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 29.
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 30.
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.
3. Install #31-6007
1
⁄8 -27 pipe plug pipe plug
in return hole not used.
d. 1992-up using cover #31-6047
1. Install 90° elbow fitting #31-6008 in hole
in hole #1 in top of cover or hole #5 in
bottom of cover.
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.
3. Primary oil supply - Cover #31-6041 is only billet
cover with provision for external primary chain
oiling.
NOTE - S&S billet oil pumps have no provision for oiling
rear chain.
a. 1936-1964 models
1. Install #31-6028
1
⁄16 -27 pipe plug in hole
#8 in top of cover.
2. Install #31-6026 adjuster screw, #31-6035
brass washer, and #31-6027 lock nut into
threaded hole in side of pump body.
Bottom screw two or three times to seat
properly. See Picture 31.
NOTE - Chain oiler adjusting screw has tapered end and must
be used. Substituting standard machine screw for tapered
screw will result in large oil loss out breather.
3. Turn screw out
1
⁄2 turn and tighten locknut
against brass washer and body.
NOTE - After engine has been run for a while it may be
necessary to adjust screw to achieve desired oil flow to primary
chain. Final screw setting is usually closer to fully closed
position.
CAUTION - Overtightening screw may damage threads or
adjusting screw seat in pump body.
b.. 1965-1984 engines with primary chain drive
and dry clutch
1. Install #31-6010 hose fitting in threaded
hole #8 on top of pump cover.
2. Connect #31-6010 fitting to primary chain
oiler line after pump is installed.
3. For 1965-1972 engines using #31-6041
pump body, install #31-6026 adjuster
screw, #31-6035 brass washer, and
#31-6027 lock nut into threaded hole in
side of pump body. See Picture 31.
Bottom screw two or three times to seat
screw. Turn screw out approximately 1
1
⁄2
turns and tighten locknut against brass
washer and oil pump body.
NOTE - Above setting should provide 1 to 1
3
⁄ 4 oz’s/minute oil
flow to primary chain @ 2500 RPM. This can be confirmed
after engine has reached operating temperature by
disconnecting hose to primary chain, operating engine at 2500
RPM and measuring oil delivered into measuring container
during one minute.