3304 DIRECT INJECTION VEHICULAR ENGINE
TM 5-3805-258-24-1
WITH SCROLL FUEL SYSTEM
SPECIFICATIONS
OIL FILTER
Oil cooler bypass valve and oil filter
bypass valve must open at a
pressure difference of . . . . . . . . . . . . . . . . 170 ~ 20 kPa (25 t 3 psi)
(1) (2) 8M3 182 Spring for bypass valves:
(3)
Length under test force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.5 mm (2.5 in.)
Test force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 N (8.92 lb.)
Free length after test . . . . . . . . . . . . . . . . . . . . . . . . . 91.7 mm (3.61 in.)
Outside diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20.6 mm (.81 in.)
Torque for stud:
Put 9S3263 Thread Lock Compound
on threads of the stud and tighten
the stud to . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 * 7 N.m (50 * 5 Ib,ft.)
OIL BREATHER CAP
(1) Torque for bolt holding
breather cap . . . . . . . . . . . . . . . . . . . . . 14 t 3 Nm (10 * 2 Ib.ff.)
ENGINE OIL
All steps of this procedure must be followed for the pressure findings to
be usable.
Step 1. Be sure that the engine is filled to the correct level with either
SAE 10 or SAE 30 oil. If any other viscosity of oil ia used, the
information in the ENGINE OIL PRESSURE CHART does not
apply.
Step 2. Find a location on the engine oil manifold to install a tee. The
eaaiest method is to remove the sending unit for the present
gauge and install a tee at this location. Install a probe from the
9S9 102 Thermistor Thermometer Group in one side of the tee.
Connect a 8M2744 Gauge from the 5P6225 Hydraulic Test
Box to the other side of the tee.
PRESSURE
Step 3. Run the engine to get the oil temperature at 90”C (21 O”F).
NOTE: A 3°C (5” F) increase in oil temperature gives approximately 7
kPa (1 psi) decrease in oil pressure.
Step 4. Keep the engine oil temperature constant. With the engine at
the rpm from the chart, read the pressure gauge.
Make a comparison between the pressure reading on the test gauge
and the minimum permissible pressure from the ENGINE OIL PRES-
SURE CHART. If the pressure reading on the test gauge is below the
minimum permissible pressure, find the cause and correct it. Operation
of the engine with low oil pressure can be the cause of engine failure or
of a reduction in engine life.
ENGINE OIL PRESSURE CHART
MINIMUM
PERMISSIBLE
TEST
SAE NO.
PRESSURE
ENGINE
rpm
OF TEST OIL
kPa
pai
1500 rpm
10
140
20
or above
30
3304
165
24
600 to 800
10
40
6
rpm
30
50
7
2-13
