Kohler Command CH20 Service Manual page 80

Reassembly
Install Spark Plugs
1. Check gap using wire feeler gauge. Adjust gap to
0.76 mm (0.030 in.) for all except NG with CD fi xed
timing or 0.51 mm (0.020 in.) for NG with CD fi xed
timing.
2. Install plug into cylinder head.
3. Torque plug to 27 N·m (20 ft. lb.).
Install Ignition Modules
1. Rotate fl ywheel to position magnet away from
ignition module bosses.
2. On engines equipped with SMART-SPARK
modules are installed with tabs out.
On engines not equipped with SMART-SPARK
modules are installed on cylinder 1 with single kill
tab should be towards you (out) and on cylinder 2
with single kill tab away from you (in).
3. Install each ignition module to crankcase bosses
with screws (hex fl ange or allen head, based on
model). Slide modules up as far away from fl ywheel
as possible and snug screws to hold them in
position.
4. Rotate fl ywheel to position magnet directly under
one ignition module.
5. Insert a 0.30 mm (0.012 in.) fl at feeler gauge
between magnet and ignition module. Loosen
screws enough to allow magnet to pull module down
against feeler gauge.
6. Torque screws to 4.0-6.2 N·m (35-55 in. lb.).
7. Repeat steps 4 through 6 for other ignition module.
8. Rotate fl ywheel back and forth checking for
clearance between magnet and ignition modules.
Make sure magnet does not strike modules. Check
gap with a feeler gauge and readjust if necessary.
Final air gap: 0.280/0.330 mm (0.011/0.013 in.).
80
Install Intake Manifold
Torque Sequence
3
1
NOTE: If wires were disconnected from ignition modules
on engines with SMART-SPARK
leads and seal base of terminal connectors with
GE/Novaguard G661 or equivalent dielectric
both
™
compound. Beads should overlap between
terminals to form a solid bridge of compound. Do
not put any compound inside terminals. 24 584
™
15-S ignition modules have a separator barrier
between terminals. On these modules, seal base
of terminals, but it is not necessary to have
overlapping beads of sealant between
connections.
1. Install intake manifold and new gaskets or O-rings
(plastic manifold), with wiring harness attached, to
cylinder heads. Slide any wiring harness clips onto
appropriate bolts before installing. Make sure
gaskets are in proper orientation. Torque screws in
two stages, fi rst to 7.4 N·m (66 in. lb.), then to
9.9 N·m (88 in. lb.), using sequence shown.
2. Connect kill lead to tab terminal on standard ignition
modules.
KohlerEngines.com
4
2
, reattach
™
24 690 30 Rev. G