S&S Cycle HVHP Oil Pump Kits for Big Twin User Manual

Page 5

B- Oil pump cover assembly.

1- Universal oil pump cover 31-6079 has supply and return holes at top of cover similar to 1991-earlier pump covers. Cover 31-6094 plumbs

the same as stock 1992-later.
a- First step in cover assembly is to identify cover and insure that cover is correct for application.
b- Customer must then install oil line fittings and other required hardware, if applicable, in cover.
c- All covers require fittings for supply and return lines. Cover 31-6079 offers more than one location for supply and/or return line fittings.
d- Customer must decide which holes in cover will be used and block off holes not used with supplied pipe plugs. Correct identification

of locations for supply and return fittings is critical.

Incorrect placement of oil lines or oil line fittings can cause extensive engine damage not covered under warranty. See Appendix (Page 9)
for correct routing of oil pump lines.

NOTES:

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Covers 31-6079 and 31-6094 are compatible with rigid OEM oil return and supply lines found on 1992-up models. In these applications, hole #5 in face of
cover is used for supply line. Hole #4 in bottom left location is used for return line. (See Picture 3, Page 3.)

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After installing elbow fitting 50-8114 for return line, customer must install compression fitting 50-8120 (supplied in kit) in elbow rather than conventional
hose fitting 50-8115. Fitting 50-8115 will be used for supply line fitting. For use with OEM rigid oil lines, return fitting must face forward, toward front of
engine. Supply fitting will face downward at approximate 45° angle toward lower left corner of pump cover.

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Always apply PTFE plumber's tape or pipe sealant such as Loctite® PST to threads of fittings before assembling fittings or installing
fittings in cover. Failure to install fittings correctly may damage cover and void warranty.

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Apply tape or pipe sealant to threads only. Avoid using excessive amounts that may protrude into and obstruct oil passages or
contaminate engine oil. Incorrect use of PTFE tape or pipe sealant may cause engine damage not covered under warranty.

2- Cover 31-6079 - FIttings for oil supply and return lines can be placed in holes at either bottom or top of cover according to installer's

requirements.

a- Preparation - Apply PTFE tape or pipe sealant such as Loctite® PST to threads of fittings and elbows to be used. If 1992-up OEM rigid

return line is used, substitute compression fitting for 1 hose fitting. Hole #4 must be used for 1992-up OEM rigid return line. (See
Picture 3, Page 3.)

b- Install hose fittings in elbows. Install compression fitting 50-8120 in return hole fitting #4 if 1992-up OEM rigid return line is used.

Compression fitting must face forward for use with OEM rigid return line.

3- Cover 31-6079 is often referred to as S&S® universal cover. It is supplied on S&S engines unless customer specifies otherwise at time of order.

Universal cover is compatible with OEM rigid supply and return lines used on 1992-up models. Fittings for oil supply and return lines can
be placed in holes at either bottom or top of cover as required by purchaser. Fitting for main oil supply line can also be installed in hole in
face of cover if desired.

NOTE: If OEM rigid oil lines are used, return fitting must face forward, toward front of engine. Supply fitting will face downward at approximate 45° angle
toward lower left corner of pump cover.

C- Inspection

S&S oil pump bodies, covers and gaskets may appear similar to other manufacturer's products but should not be interchanged due to possible
differences that could impair oil pump function.

Using oil pump components other than those provided by S&S may result in oil leak, insufficient oil pressure and possible engine damage.

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Many solvents are flammable and potentially toxic. Read solvent manufacturer's instructions prior to use.

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Compressed air is potentially harmful, especially to eyes and skin. Wear goggles and other protective clothing during use, and direct
air stream away from yourself and others nearby.

CAUTION

WARNING