Service manual

OIL PRESSURE SWITCH/OIL PRESSURE
OIL PRESSURE SWITCH/SENDER
When performing an engine overhaul, replace the oil pres-
sure switch and the oil pressure sender. When installing the
new parts apply a teflon sealant to the threaded ends being
careful not to close off the oil hole in the sender.
Oil Pressure Sender and Switch Torque
71 ani C 1.2 - 1.8 m-kg (9 - 13 ft-lb)
A CAUTION: Oil Pressure SWitch - 00 not use lock pli-
ers, vise grips or pipe wrenches on the oil pressure
switch. Use the correct socket which Is avaIlable from
Snap-On, Proto, New Britain and others. Damage to the
swItch will cause oil leaks and/or switch faIlure.
+
CURRENT ENGINES
AND GENERATORS
EARLY MODEL
ENGINES
+
OIL PRESSURE
To test the oil pressure, remove the oil pressure sender, then
install a mechanical oil pressure gauge in it's place. After
warmer
up the engine; set the engine speed at 2400 rpm and
read the oil pressure gauge.
. Oil Pressure
71 ani C 3.8 kg/cm
1
(54 lblin1) or more at 3600 rpm
LOW OIL PRESSURE
A gradual loss of oil pressure usually indicates a specific
bearing failure. For additional information on low oil pressure
readings, see the ENGINE
TROUBLESHOOTING chart.
Engines & Generators
39