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S&S Cycle Oil Pump for T-Series Engines & Harley-Davidson Twin Cam 88 Engines User Manual

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On either stock or S&S

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cases, verify that locating dowels have not been pushed in all the way. If they have, you will need to thread an

appropriate sized screw into it and pull the dowel out to measure .100” - .125”. Once the dowel is at the proper depth, thread the S&S
thread adapter into it. Note that the thread adapter needs blue 243 Loctite

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and you MUST NOT use a lot of pressure when installing.

Just a bit more than hand tight is all that is required.

Unpack the S&S reed valve and spring. Install the reed valve over the pinion shaft ensuring that the O-ring is seated fully in the case —
there is no specific orientation to worry about. Next, simply slide the spring into the machined groove on the reed valve and allow it
to rest on the pinion shaft. NOTE: Engines built with S&S SA cases will require the installation of a spring adapter PN 31-2103 to
support the spring. The large end of the adapter goes into the breather as shown in photo 6a.

Open the O-ring pack included with the kit and install them around the S&S case perimeter. Harley-Davidson

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cases will require only 3

O-rings (early 1999 H-D

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uses only 2). Be sure not to forget the large O-ring pointed out in the photo below.

Photo 8

Photo 4

Photo 5

Photo 6

Photo 6a

Photo 7

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