S&S Cycle Automobile Parts, Инструкция

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can drastically alter their strength and their critical
properties. The degree of change depends upon the
temperatures reached and the duration of exposure.
When powder coating or otherwise processing alloy
parts, S&S exposes them to a maximum temperature
of 370°F for no longer than 20 minutes. Under no
circumstances should parts be heated past 400°F!
E. Preparation and Installation
1 . Inspection
a Inspect crankcases to confirm that they are
correct style and machined for correct bore
size. Refer to tag wired to crankcases.
b. Verify that serial numbers on crankcases
match numbers on packing carton and
certificate of origin. Contact S&S immediately if
numbers do not match.
NOTE - Valid certificate of origin is required for any transfer
or sale of aftermarket crankcases or complete engines built
with aftermarket crankcases. Certificate of origin is required
to title and license any motorcycle which is to be driven on
public streets and highways.
2. Crankcase Test Fit
If possible, bare crankcase should be positioned in
motorcycle frame before assembly to check
clearances.
a. Test-fit instructions for Twin Cam style
cases with stock Twin Cam style engine
mounts.
Position case in frame, check for clearance at
frame, and alignment to transmission. It is a
good idea to replace rubber engine to
transmission mounts at this time. Old mounts
deform over time and may and induce
unwanted stresses on the engine case.
b. Test-fit instructions for Twin Cam style
cases with Evo Style motor mounts.
S&S Twin Cam style crankcase installation in
Evolution style motorcycle frame is essentially
the same as stock, although additional
clearancing and shimming may occasionally
be required. When this style of case is solid
mounted instead of rubber mounted, additional
care must be taken in installing the case. Main
areas of concern are between cases and
frame motor mounts. Checking clearance
around and between case mounting bosses
and frame is necessary to insure that
crankcase rests squarely on motor mount pad
and no stress is applied to crankcases when
mounting bolts are tightened. Shimming may
be required to compensate for variances
between frames.
NOTE - Crankcases damaged by improper installation are
not covered under warranty.
CAUTION - Improper alignment of engine and frame
mounts may cause abnormal stresses resulting in
damage to crankcases or other parts.
To check clearance perform following steps:
1. Assemble case halves using case bolts. Tighten to
snug. Torquing bolts to final specification is not
necessary.
2. Clean frame engine mounts and carefully remove
any irregularities from mounting surfaces. Also
inspect crankcase mounting bosses for burrs.
3. Position case assembly in frame.
4. Install engine mounting bolts in motor mounts, and
check clearance between mounting bosses on
cases and frame and any other areas where frame
and cases may contact each other. Bolts may be
difficult to install if contact is severe.
5. If cases contact frame, remove them and relieve
just enough material in offending area to provide
clearance.
6. Place cases in frame, install one rear mounting bolt
and snug nut.
7. Measure gap between crankcase mounting bosses
and frame motor mounts with feeler gauge to
determine if shimming is required.
8. If gap exists, fabricate shim just thick enough to fill
gap
9. Install opposite corner shim and mounting bolt and
nut, and tighten identical to other bolt.
10. Check other corners with feeler gauge to confirm
thickness required is same as before. If not,
determine cause and correct.
3. Pre-Assembly Cleaning
Clean crankcases in hot soapy water or solvent to
remove any dirt or contamination which may have
been introduced during shipping, handling, or set-
up. Dry components and check passages with
compressed air.
WARNING - Compressed air and particles dislodged by
compressed air are potentially harmful. Wear
protective goggles when using compressed air and
always direct air stream away from yourself and others
nearby.
Hardware Identification and Installation
NOTES
●
When installing hardware, be careful not to cross-thread
fittings or damage threads. Damage caused by improper
installation of hardware will not be covered under warranty.
●
To prevent galling, apply anti-seize compound, pipe
sealant, or Teflon tape to threads of all steel fittings prior to
installation in crankcase.
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