1990 VOLVO 240 belt

Volvo 1990 240 Model
EMISSIONS
SYSTEM
MAINTENANCE
Engine oil and oil
filter R
R R R R R R R R R R R R
Cooling system
hoses and
connections I
Engine drive belts A I I
Torque manifold
nuts A
Valve clearance I I
Timing belt A R (3)
Vacuum fittings,
hoses and
connections I
Air cleaner filter R R
Idle RPM I
Fuel system cap,
tank, lines and
connections I
file:///K|/ownersdocs/1990/1990_240/90240_12.htm (4 of 7)12/30/2006 8:\
25:07 AM

Volvo 1990 240 Model
Check all cooling system hoses and connections for defects or deteriorat\
ion of hoses and loose clamps or
fittings.



Drive belts

The belt tension can be checked by depressing the fan belt at a point mi\
dway between the alternator and
fan pulleys as illustrated. It should be possible to press down the belt\
about 1/4" - 3/8" (5-10 mm). This
also applies to other drive belts on the engine.
If drive belts are replaced, recheck belt tension after driving 600 - 1,\
200 miles (1,000 - 2,000 km).




Contents | Top of Page
w
file:///K|/ownersdocs/1990/1990_240/90240_13.htm (9 of 9)12/30/2006 8:\
25:08 AM

Volvo 1990 240 Model
pg. 64 Service requirements
Engine Mechanical Components

Torque manifold nuts

The manifold nuts should be torqued at the 600-1,200 mile (1,000-2,000 \
km) inspection. A loose
manifold could alter air/fuel ratio and cause an increase in emission an\
d/or poor driveability.

Valves

The valve clearance should be checked every 30,000 miles (48,000 km). \

Vacuum fittings, hoses and connections

Unstable idle, misfiring or poor emission control is often caused by lea\
king vacuum hoses or
connections. Check hoses and connections on distributor vacuum unit, EGR\
valve (where applicable)
and connections on heater control servo systems and hydraulic brake serv\
o.

Exhaust Gas Recirculation (EGR)

This system operates by returning some of the exhaust gases to the engin\
e to be recombusted: since this
lowers the combustion temperature the amount of nitrogen oxides released\
into the atmosphere is
reduced.
The EGR valve should be cleaned at the 60,000 mile inspection and therea\
fter cleaned every 25,000
miles (40,000 km).

Timing belt

The timing belt tensioner should be adjusted at the 600-1,200 mile (1,0\
00-2,000 km) inspection.
file:///K|/ownersdocs/1990/1990_240/90240_14.htm (1 of 7)12/30/2006 8:\
25:08 AM

Volvo 1990 240 Model
Warning: Turn starting (ignition) switch OFF before replacing fuses. E\
xcessive heat may be created by
a short circuit. Care must be exercised while replacing blown fuses.

Some of the equipment listed below is optional

Refer to the fuse location chart at fuse box for fuses specific to your \
car.

1 Cigarette lighter, Power mirrors, Radio, Tailgate wiper/washer 8A
2 Windshield wiper/washer, Horn 16A
3 Heater blower 25A
4 Fuel feed (in-tank) pump, Lambda-sond heating element 8A
5 Turn signals, Back-up lights 16A
6 Main fuel pump relay 16A
7 Brake lights 8A
8 Central locking, Interior and glove compartment lights, Trunk and engi\
ne
compartment lights, Radio, Power antenna, Clock, Daytime running lights \
(Canada)* 8A
9 Hazard warning Flashers 8A
10 Power windows 16A
11 Heated rear window, 4th gear (automatic transmission) 16A
12 Air conditioning (with blower control), Power windows (relay),
Heated rear window (relay), Seat belt reminder, Cruise control 8A
13 Heated front seats, Daytime running lights - relay (Canada)* 16A
14 Rear fog lights 8A
15 Parking lights (left side), License plate light 8A
16 Parking lights (right side), Instruments and control panel lights, \
Shift indicator light 8A
Blade type fuse, serving LH-Jetronic fuel injection system. Located on t\
he left
wheel housing by the ignition coil 25A

* Note: Early production Canadian vehicles are not equipped with Daytime\
Running Lights.




Contents | Top of Page
file:///K|/ownersdocs/1990/1990_240/90240_16.htm (10 of 10)12/30/2006 \
8:25:10 AM

Volvo 1990 240 Model

Polishing (waxing)

Normally, polishing is not required during the first year after delivery\
. Waxing may be beneficial.
Before applying polish or wax the car must be washed and dried. Tar spot\
s can be removed with
kerosene or tar remover. Difficult spots may require a fine rubbing comp\
ound.
After polishing use liquid or paste wax.
Several commercially available products contain both polish and wax. Wax\
ing alone does not substitute
for polishing of a dull surface.
A wide range of polymer based car waxes can be purchased today. The waxe\
s are easy to use and
produce a long lasting high gloss finish which protects the bodywork aga\
inst oxidation, road dirt and
fading.

Cleaning the upholstery

Generally the fabric can be cleaned with soapy water or a detergent. For\
more difficult spots caused by
oil, ice cream, shoe polish, grease, etc., use a stain remover.
The plastic in the upholstery can be washed.
To clean leather upholstery , use soft cloth and mild soap solution, for\
instance common bath soap.
For more difficult spots, consult an expert for the choice of cleaning a\
gent.
On no account must gasoline, naphtha or similar cleaning agents be used \
on the plastic or the leather
since these can cause damage.
When aging, leather changes appearance, but the typical texture remains.\
To preserve smoothness and
appearance, it is recommended to treat the leather with a special leathe\
r preservative after one or two
years of use.

Cleaning the seat belts

Clean only with luke warm water and mild soap solution.
WARNING! Do not use cleaning solvents to clean the seat
belts.

Cleaning floor mats

file:///K|/ownersdocs/1990/1990_240/90240_18.htm (3 of 8)12/30/2006 8:\
25:11 AM

Volvo 1990 240 Model
pg. 91 Long distance trips, Cold weather
Prior to a long distance trip

Have your car checked at a Volvo dealer. Preventive maintenance will hel\
p to ensure a trouble free trip.
Remember to take along a Volvo dealer directory.
The main items to check are listed below:
1. Brakes, front wheel alignment and steering gear.
2. Engine running condition.
3. Fuel system operation.
4. Oil leaks: engine, transmission, rear axle.
5. Cooling system for leaks or worn hoses.
6. Examine tires carefully, replace worn tires.
7. Battery and terminals.
8. Tool equipment.
9. Lighting.
10. Drive belts, for tightness and wear.
11. All fluid levels.

Cold weather/Engine fuel system

During the winter, large variations in temperature cause condensation to\
form in the fuel tank and can
impair the running of the engine. This can be reduced by adding dry gas \
to the fuel. There is less risk of
condensation forming in the fuel tank if it is kept full or nearly full.\


Engine cooling system

Volvo type C (blue-green) coolant should be used all year round. The c\
ooling system should always
contain water plus anti-freeze and rust inhibitor, even during the summe\
r. Experience has also shown
that extremely weak anti-freeze solutions (10-25 percent) are ineffect\
ive for rust protection. For this
reason, the quantity of antifreeze/summer coolant should be about 50 per\
cent of the solution. This
lowers the freezing point to - 30 ° F (-35 ° C).

Engine lubricating system
file:///K|/ownersdocs/1990/1990_240/90240_19.htm (1 of 7)12/30/2006 8:\
25:13 AM

Volvo 1990 240 Model

Type Positive pressure, closed system
Thermostat begins to open at 188.6 ° F
Fan belts, designation HC-38 x 918 (two)

Coolant: Volvo Coolant type C (blue-green)

Fuel system

The engine is equipped with an electronic fuel injection system.

Ignition System

Firing order 1-3-4-2
Ignition setting (12 ° B.T.D.C. at 750 rpm)
Spark plugs Bosch WR7DC (or equivalent)
Spark plug gap 0.028-0.032" (0.7-0.8 mm)
Tightening torque 15-22 ft. lbs. (20-30 Nm)
Distributor, direction of rotation Clockwise pg. 101 Specifications
POWER TRANSMISSION

Manual or automatic transmission. Hypoid type final drive.

Manual transmission M47 II
Reduction ratios:
1st gear 4.03:1
2nd gear 2.16:1
3rd gear 1.37:1 Rear axle reduction ratio:
4th gear 1.00:1 3.31:1
5th gear 0.82:1
Reverse 3.68:1
file:///K|/ownersdocs/1990/1990_240/90240_20.htm (5 of 14)12/30/2006 8\
:25:15 AM

Volvo 1990 240 Model
Overdrive off (auto
trans.) 1.2 W
W2x4.6d 1
Warning flashers 1.2 W W2x4.6d 1
El. heated window 1.2 W W2x4.6d 1
Seat belts 2 W Ba 9 s 2
Bulb failure 1.2 W W2x4.6d 1
pg. 103 Specifications
Recommended max. and min. speeds†, mph (km/h)

Manual transmission M47 II
1st gear 2nd gear 3rd gear 4th gear 5th gear
-25 (-
40) 10-44 (20-
70) 20-70 (30-
110) 25-
(44-) 44-
(70-)

† always observe posted speed limits.

Vehicle Loading

The tires on your Volvo will perform to specifications at all normal loa\
ds when inflated as
recommended on the tire information label located on the rear facing sid\
e of the right front door.
This label lists both tire and vehicle design limits.
Do not load your car beyond the load limits indicated.
file:///K|/ownersdocs/1990/1990_240/90240_20.htm (10 of 14)12/30/2006 \
8:25:15 AM