Gas/Vent Hoses; Oil Filter/Oil Pump - Toro 500 EFI Service Manual

5. Secure the filler panel with four press-nuts; then
tighten the hardware securing the hold-down straps
(from steps 2-3) securely.
6. Connect the vent hose (A) and gasline hose (B) to the
proper fittings; then connect the fuel pump/fuel level
sensor connector (C) to the main harness.
7. Position the floorboard into the vehicle and secure
with the appropriate hardware; then install the seat
base, seat back, and seat.

Gas/Vent Hoses

Replace the gas hose every two years. Damage from
aging may not always be visible. Do not bend or obstruct
the routing of the vent hoses. Make certain the vent hoses
are securely connected and the opposite ends are always
open.
PR176

Oil Filter/Oil Pump


NOTE: Whenever internal engine components wear
excessively or break and whenever oil is contami-
nated, the oil pump should be replaced.
TESTING OIL PUMP PRESSURE

NOTE: The engine must be warmed up to operating
temperature (cooling fan cycling) for this test.
1. Remove the seat, seat back, and seat base.
2. Using a suitable "T" fitting, connect a suitable oil
pressure test kit to the oil fitting and hose. Tighten all
clamps securely.
PR166A

NOTE: Some oil seepage may occur when installing
the oil pressure gauge. Wipe up oil residue with a
cloth.
3. Block the wheels, place the transmission in neutral,
and start the engine. Allow the engine to warm up to
operating temperature (with cooling fan cycling).
4. With the engine running at 3000 RPM, the pressure
gauge must show 0.7-1.4 kg/cm
5. Remove the test kit from the vehicle and install the
oil hose. Tighten the clamps securely.
6. Install the seat base, seat back, and seat.
PR167A

NOTE: If the oil pressure is lower than specified,
check for an oil leak, damaged oil seal, or defective
oil pump.

NOTE: If the oil pressure is higher than specified,
check for too heavy engine oil weight (see General
Information - Gasoline - Oil Lubricant), clogged oil
passage, clogged oil filter, or improper installation of
the oil filter.
REMOVING/DISASSEMBLING
1. Remove the oil pump from the engine (see Right-
Side Components in the Engine/Transmission sec-
tion).
PR698A
2
(10-20 psi).
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