S&S Cycle Spring Kit 49-0115 for Victory Freedom Engines - Manual (Page 3)

C- While holding valve firmly against seat in closed position, measure installed spring height (distance between lower valve
spring seating surface and outside step of top collar). See Figure A, Dimension A. Record measurement.
D- Measure distance between top collar keepers and top of valve seal (if applicable). See Figure A, Dimension B. Distance must
be at least .030” greater than valve lift of cam to be used.
E- Repeat Steps A-D for remaining valves and record all measurements. Be sure to keep track of all parts during assembly to
assure they are installed in same location and with same valves clearances were measured with.
NOTES
●
For race and similar applications, experienced engine builders may elect to shim valve spring assembly to installed height less than
1.550” if cam with less than .495” valve lift is used. In such cases, installed height should not be less than 1.055” + valve lift ±
.010.” For example, with .400 lift cam, installed height could be shimmed to 1.055” + .400”, or 1.455” ± .010”. In such cases,
spring pressure and valvetrain wear will increase significantly. Engine builder assumes all responsibility for installing springs at
height other than 1.550” ± .010”.
● Installing springs at height less than recommended dimension will cause rapid spring fatigue resulting in possible engine damage.
Engine should be frequently disassembled for spring tension measurement.
● Installing springs at height above recommended dimension will decrease spring tension resulting in possible valve float and
engine damage.
● Failure to establish required clearances may cause valve seal failure and other, more extensive engine damage not covered under
warranty.
Valve spring assembly is under considerable tension when compressed and is potentially dangerous. Wear eye protection and
take due caution when checking for coil bind and during installation. After assembly, carefully strike tip of valve stem with
plastic hammer to insure that keepers are seated. Direct spring assembly away from face and body during this procedure.
3
Figure A
Dimension A:
Installed spring height must be adjusted to 1.550" ± .010".
Dimension B:
Must be .030" greater than valve lift for camshaft to be used.
A
B
CAUTION
WARNING