Kohler KT19 series II User Manual

2. Connect one timing light lead to the wire that
has just been wrapped around spark plug
terminal.
3. Connect second timing light lead to hot (un-
grounded) side of battery · see timing light
instructions for battery size, wiring, etc.
4. Connect third timing light lead to ground.
5. Start engine, run at 1200-1800 RPM, aim timing
light into sight hole-light should flash just as
"S" mark is opposite the roll pin in the cylinder
barrel (see Figure 6· 7).
NOTE: If a double image is seen in the timing
sight hole, time the engine so that the roll pin is
exactly between the two images.
Figure 6· 7. Timing Light Method
6. If timing is off- remove breaker point cover.
(Breaker point cover screws must be screwed
back into mounting pad after cover is removed.
The screws keep engine oil from squirting out of
the crankcase through the breaker point cover
screw holes, while engine is being timed.) Laos·
en gap adjusting screw, shift breaker plate until
"S" mark is exactly centered, retighten adjust-
ing screw. Check timing before replacing breaker
point cover.
Breaker Point Gap Method
After setting timing with a timing light, check the
breaker point gap with a feeler gauge-it should be
.017" to .023". If the gap is not within this range,
camshaft to crankshaft timing is incorrect, or
push rod or cam lobe is worn.
SECTION 6
ELECTRICAL SYSTEMS AND COMPONENTS
35
Valve Overlap Method
If the cam to crankshaft timing is correct, the
intake and exhaust valve will be level with each
other (equal valve lift) at top dead center on valve
overlap. If the cam to crankshaft timing is off by
one tooth, there will be approximately .030" dif-
ference in the valve lift from intake and exhaust at
top dead center on the valve overlap.
ALTERNATOR CHARGING SYSTEMS
3 amp and 15 amp alternator charging systems are
used on these engines. The 15 amp system has a
rectifier-regulator
mounted on the number one side
of the blower housing. The 3 amp system does not
use a rectifier-regulator. In addition to the rectifier-
regulator, other components of the two systems
differ; therefore, there can be no interchanging of
parts between them. No adjustments are possible
on these alternator systems and field service is not
recommended. All faulty parts should be replaced.
3 amp System Service
(See Figure 6-8).
The 3 amp alternator system consists of three
major components: a permanent magnet ring with
five or six magnets on the inside rim of the
flywheel, an alternator stator assembly which is
affixed to the crankcase and a diode which is
located in the charging output lead from the stator.
The accompanying service guide can be used to
pinpoint any source of trouble.
A cAUTION:
1. Battery polarity must be correct. Negative
ground systems are used.
2. Disconnect wiring harness plug before electric
welding is done on equipment powered by the
engine and in common ground with engine.

Kohler KT19 series II Specifications

General

Brand	Kohler
Model	KT19 series II
Category	Engine
Language	English