JIMS 18526-PG - Manual

Instruction Sheet For No.18526-PG
Power Glide Tappet
Sportster
Fits 1991-present
Install tappets per H.D.® Service Manual.
1. These tappets will work best with a running clear
ance of .0008” to .0013”.
2. JIMS® Power Glide™ Tappets are assembled with a
small amount of oil to ease in the adjustment. This
way you will not have to bleed down the tappet at the time of final adjustment.
3. If the pushrods you are using are adjustable proceed as follows.
4. With the Power Glide™ Tappet installed, start with the front tappet at the lowest point on the cam,
extend the pushrod to zero lash (no up and down play, but has a light spin).
5. Extend the pushrod adjuster 15 wrench flats if pushrods have 24 threads per inch, 17 wrench flats if
pushrods have 28 threads, 18 wrench flats if your push rods have 32 threads per inch, 24 wrench
flats if your push rods have 40 threads per inch and 30 wrench flats if your pushrod has 52 threads
per inch. Tighten lock nut.
IMPORTANT NOTE: This adjustment will make the pushrod tight, which will bleed the hydraulic lifter. It will
take 10-15 minutes, or longer, to bleed off. It is very important that the engine is not rotated while
pushrods are tight. The pushrod will spin with your fingers after it has bled off properly.
6. Recheck lock nut, close covers and install clips.
7. Repeat exact procedure on rear set.
8. Turn motor over several times to pump oil into the Power Glide™ Tappet or until the oil light goes out,
or oil is returning to the oil tank.
CAUTION: Use motorcycle oil 20-50w at best
Pushrod Adjustments
Distance Distance Threads Wrench Total Travel
per turn per flat per inch Flats Distance
.0417 .0089 24 15 .1042”
.0367 .0059 28 17 .1011”
.0313 .0052 32 18 .0937”
.025 .0042 40 24 .100”
.0192 .0032 52 30 .0962”
Popular Pushrods
JIMS® 32 Slim-Jims
Andrews 28
Andrews 32
Crane 24 Time Savers
Crane 32
H.D. 32
S & S 32
Rivera 40 Taper Lite
The following is sometimes mistaken for noisy tappets:
A. The most common being the clearance between cam gears and pinion gear (referred to as gear
lash). If you did not change the cams at the time of installing this kit and had no gear lash but a
slight whine when motor was cold it is safe to say you are OK in this area.
B. Rocker arm end play .004” to .010” is good.
C. Oil pressure at normal operating temperature about 2500 r.p.m. should be 10-75 p.s.i..
D. Check valve to guide clearance.
Rev C
9/99
No.2273-IS
“From the Track... To the Street!”
555 Dawson Drive, Camarillo, CA 93012 • Phone 805-482-6913 • Fax 805-482-7422