S&S Cycle Hydraulic Lifters with HL2T Travel Limiters Installed - Manual

S&S ® Cycle, Inc.
235 Causeway Blvd
La Crosse, Wisconsin 54603
Phone: 608-627-1497 • Fax: 608-627-1488
Technical Service Phone: 608-627-TECH (8324)
Technical Service Email: [email protected]
Website: www.sscycle.com Because every industry has a leaderr
Instruction 51-1180
4-25-06
Copyright ® 2004, 2006
by S&S Cycle, Inc.
All rights reserved.
Printed in the U.S.A.
Service Bulletin
S&S ® Hydraulic Lifters
with HL
2
T Travel Limiters Installed
The S&S ® HL
2
T Kit is designed to limit the travel of the hydraulic lifter making it
impossible for the lifter to collapse. Stronger valve springs are often used to avoid
valve float at high rpm. The HL
2
T kit prevents high valve spring pressure from
collapsing lifters. With the HL
2
T Kit installed, stock hydraulic lifters work like solid
lifters at high rpm, while retaining normal hydraulic function for minimal noise and
maintenance under normal conditions. Another advantage of the HL
2
T kit is that if
a valve is held open when the engine is not running, valve spring pressure will not
cause lifters to bleed down and collapse. Collapsed lifters can cause hard starting
and excessive valve train noise when engine is restarted. Adjustable pushrods must
be used with the HL
2
T Kit.
● HL
2
T travel limiters have been installed in these S&S hydraulic Tappets.
● These S&S tappets require the use of adjustable pushrods. Use of non-
adjustable pushrods will result in severe engine damage.
● Use only S&S recommended pushrod adjustment procedures. (Instruction Sheet
51-1035)
CAUTION:
Read this before proceeding.
For All Big Twin Engines 1999-Later
WARNING