JIMS 1732 Rocker Arms - Manual (Page 3)

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No.1046-IS
“From The Track... To The Street!”
555 Dawson Drive, Camarillo, CA 93012 • Phone 805-482-6913 • Fax 805-482-7422 • www.jimsusa.com
CAUTION: Wear safety glasses. Excessive force may damage parts and tool. See JIMS ® cata-
log for over 100 other top quality professional tools. The last tools you will ever need to buy.
SHOVELHEAD VALVE TRAIN KIT
Shovel head owners, "clean up your act," with JIMS ®
new valve train kit. This totally engineered valve train kit
will enable you to oil your Shovelhead top end like an
EVO.. You can remove your top end oilers because oil is
fed through JIMS
® proven Powerglide tappets, then up
through work saver pushrods into JIMS ® Roller Rocker
Arms. Tappets maintain oil pressure better, and they
improve the lubrication because oil is now pressurized
through the points of contact. Oil pressure to the top
end is controlled just like the proven EVO oil system.
This kit comes with super special Powerglide™ tappets
with an EVO style pushrod seat, special worksaver
pushrods, chrome tappet blocks, two tappet block gas-
kets, and an easy to follow instruction sheet.
Use on single cam only Big Twin 1966-84. (Note: Includes Aftermarket motors) ( Use quad seals for the best
possible oil sealant.)
Please read all instructions before starting this job.
1. Remove heads and rocker boxes from engine as per H-D ® or Clymer Service Manual.
2. Remove rocker shafts from rocker covers by first removing rocker arm shaft screw and o-ring from one side,
then remove acorn nut and washer from other side.
3. Tap rocker arm shaft from cover being careful not to damage threads. Inspect shafts for wear and burrs,
replace with JIMS ® # 17611-66B if needed. Remove rocker arm and spacer. Remove old gaskets. Check for
excessive wear at the valve stem tip and pushrod tips. Replace any valve train parts that are worn, bent,
broken, pitted or discolored. Keep in mind that excessively worn parts at the pushrod ends and valve stem
tips are an indication of wear at the valves and seats. This might be a good time for a valve job, and or new
valve springs ect.
4. Install JIMS ® rocker arms with spacer. Use assembly lube on rocker shaft. Install shaft and tighten acorn nut.
Use a new washer.
5. Check rocker end play. See H-D ® or Clymer Service Manual specs, adjust if necessary.
Instructions continued on page 2
NOTE: When installing a performance cam with high lift, you should always check for rocker arm to
rocker box clearance. This can be done with clay or machinist dye. Keep in mind all rocker boxes are
different due to casting differences. Minimum clearance .060. Remove material from the rocker boxes
only. Also, if you are using a valve spring with a large diameter top collar check for clearance between
underside of rocker arm to the edge of the top collar. Also check valve to valve at overlap (should have
at least .035" to .040"). Then check valve to piston to have at least .060". All this must be performed
with your valve train set with zero valve lash. If you have hydraulic tappets, adjust them to be solids
for the above check. Readjust tappets after check per tappet instructions.
A Division of Thiessen Products, Inc.
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