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2.2
Section 2
Special Tools
Figure 2-1. Tool Catalog and Price List.
Special Tools You Can Make
Flywheel Holding Tool
Flywheel removal and reinstallation becomes a “snap”
using a handy holding tool which can be made out of an
old “junk” flywheel ring gear as shown in Figure 2-2.
Using an abrasive cut-off wheel, cut out a six tooth
segment of the ring gear as shown. Grind off any burrs
or sharp edges. The segment can be used in place of a
strap wrench. Invert the segment and place it between
the ignition bosses on the crankcase so that the tool
teeth engage the flywheel ring gear teeth. The bosses
will “lock” the tool and flywheel in position for loosening,
tightening or removing with a puller.
Figure 2-2. Flywheel Holding Tool.
Rocker Arm/Crankshaft Tool
If you don’t have a spanner wrench to lift the rocker
arms or turn the crankshaft, you can make a tool for
doing this out of an old junk connecting rod.
Figure 2-3. Rocker Arm/Crankshaft Tool.
Cylinder Leakdown Tester
A Cylinder Leakdown Tester (SPX Part No. KO3219
formerly Kohler 25 761 05-S) is a valuable alternate to a
compression test on these engines. See Figure 2-4. By
pressurizing the combustion chamber from an external
air source, this tool can determine if valves or rings are
leaking. Instructions for using this tester are found in
Section 3 of this manual.
Find a used connecting rod from a 10 HP or larger
engine. Remove and discard the rod cap. If it is a Posi-
Lock rod, you will also need to remove the studs. If it is
a Command rod, you will need to grind off the aligning
steps, so the joint surface is flat. Find a 1 in. long
capscrew with the correct thread size to match the
threads in the connecting rod. Obtain a flat washer
with the correct I.D. to slip on the capscrew and an
O.D. of approximately 1 in. Kohler Part No. 12 468 05-S
can be used if you don’t have the right size on hand.
Assemble the capscrew and washer to the joint
surface of the rod, as shown in Figure 2-3.
Figure 2-4. Cylinder Leakdown Tester.