JIMS 2456-1 - Manual

IIn ns st tr ru uc ct tiio on n S Sh he ee et t F Fo or r # #2 24 45 56 6--1 1,, 2 24 45 57 7--1 1,, & & 2 24 45 58 8--1 1
PowerGlide™ Tappet, Standard O.D. is .8425”
Big Twin Single Cam - Fits 1984-present
Sportster - Fits 1986-1990
Buell ® - 1987-90
Install tappets per H.D. ® Service Manual.
1. These tappets will work best in JIMS ® Tappet Blocks #1094 with a running clearance of
.0007” to .0012”.
2. JIMS ® Power Glide™ Tappet can also be run in H.D. ® blocks with a running clearance
of .0007-.0012.
3. JIMS ® Power Glide™ Tappets are assembled with a small amount of oil to ease in the adjustment.
4. If the pushrods you are using are adjustable proceed as follows.
5. 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.)
6. 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. Note: Popular Pushrod adjustments on back of page.
IMPORTANT NOTE: This adjustment will make the pushrod tight, which will bleed the hydraulic lifter. It can 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 the tappet
has bled off.
7. Recheck lock nut, close covers and install clips.
8. Repeat exact procedure on rear set.
9. 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 and clean the tappet filter screen.
REV E
9-08
No.2272-IS
You and your Harley ® have just taken the first steps towards owning the finest precision designed and engineered valve train components known to the
Harley-Davidson ® market. JIMS ® tappets, tappet blocks and cam covers surpass the stock requirements and demands of the present and future Harley-
Davidson ® motorcycle.
To achieve the best life possible from this tappet (or any other valve train part) you must be aware of some very important issues.
1. Clean! Clean! Clean! You must use the best possible oil and oil filter available for your Harley-Davidson ® . Use only motorcycle or air cooled
type engine oil. No Substitutes!
2. If these tappets are being installed in a motor that has had motor problems, or was rebuilt, wash out oil tank, oil feed lines and motor.
3. If these tappets are replacing a previous tappet and cam problem, please make sure you know what caused the problem in the first place.
4. The first area of concern is that the tappet roller must seat flat on cam. JIMS ® tappets are square from the tappet
body to the axle bore within .0002”. If the roller is not seated flat on the cam, it will fail within a short period of time.
5. Second concern: The same holds true for the tappet blocks. JIMS ® tappet blocks are machined to hold the bores perpendicular to the mounting
flange within ±.0002 of an inch.
6. The next important concern is alignment of the cam itself. First, the cam will be, or should be, parallel from the two bearing journals to the lobes
within ±.0002, (this is just the cam). With the cam installed in the motor this can be a lot different. For this reason, JIMS ® has a precision machined cam cover
to hold your cam to within .0002” of cam centerline.
As you can see from some of the examples there are a lot of possible reasons for your valve train to have a shortened life. For this reason JIMS ® is contin-
uously helping you achieve the longest possible life for your valve train.
C Co on ng gr ra at tu ul la at tiio on ns s
WARRANTY
All JIMS ® parts are guaranteed to the original purchaser to be free of manufacturing defects in materials and workmanship for a period of six (6) months from the
date of purchase. Merchandise that fails to conform to these conditions will be repaired or replaced at JIMS ® option if the parts are returned to us by the dealer (purchaser) with-
in the six (6) month warranty period or within ten (10) days thereafter.
In the event warranty service is required, the original purchaser must call or write JIMS ® immediately with the problem. Some problems can be rectified by a tele-
phone call and need no further course of action. A part suspected of being defective must not be replaced by a dealer without prior authorization from JIMS ® . If it is deemed
necessary for JIMS ® to make an evaluation to determine whether the part is defective, it must be packaged properly to prevent further damage and be returned prepaid to
JIMS ® with a copy of the original invoice of purchase and a detailed letter outlining the nature of the problem, how the part was used and the circumstances at the time of fail-
ure. If after an evaluation has been made by JIMS ® and the part was found to be defective, repair, replacement or credit will be granted.
ADDITIONAL WARRANTY PROVISIONS
1.) JIMS ® shall have no obligation in the event a JIMS ® part is modified by any other person or organization.
2.) JIMS ® shall have no obligation if a JIMS ® part becomes defective in whole or in part as a result of improper installation, improper maintenance, improper use,
abnormal operation, or any other misuse or mistreatment of the part.
3.) JIMS ® shall not be liable for any consequential or incidental damages resulting from the failure of a JIMS ® part, the breach of any warranties, the failure to
deliver, delay in delivery, delivery in nonconforming condition, or for any other breach of contract or duty between JIMS ® and a customer.
4.) JIMS ® parts are designed exclusively for use in Harley-Davidson ® Motorcycles. JIMS ® shall have no warranty or liability obligation if a JIMS ® part is used in
any other application.
“From the Track... To the Street!”
555 Dawson Drive, Camarillo, CA 93012 • Phone 805-482-6913 • Fax 805-482-7422
A Division of Thiessen Products, Inc.
No.2456-1 STD.
No.2457-1 Oversize +.002”
No.2458-1 Oversize +.005”
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