Issue: Jan, 1999

H4 Engine Specifications

Type 2.4L Inline 5, DOHC, 20 valves, belt driven camshaft with autotensioner, aluminum block and head

Displacement 2435cc (149 cid)

Bore x Stroke 83 x 90mm (3.267 x 3.543 in.)

Horsepower 168 hp @ 6100 rpm

Torque 162 ft-lbs @ 4700 rpm

Compression Ratio 10.5:1

Engine Management System Bosch Motronic

Fuel Pressure 44 psi

Fuel Injectors 15.55-16.25

Oil Pressure min. 49 psi @ 4000 rpm

Valve Clearance Hydraulic

Spark Plug Gap 0.7-0.8mm (0.027-0.031 in.)

Firing Order 1-2-4-5-3

Ignition Timing 10 [degrees] [+ or -] 2 [degrees] BTDC @ idle

Base Idle Speed 800 [+ or -] 50 rpm

Electrical System Battery--12V, 520 CCA Alternator--80 amp Ignition--Distributor

Capacities Manual trans--2.2 qt. (2.1 liters) Auto trans--8 qts. (7.6 liters) with torque converter Fuel tank--19.3 gal. (73 liters) Cooling system--7.6 qt. (6.5 liters) Power steering--0.85 qts. (0.8 liters) Oil change--w/filter 5.5 qt. (5.3 liters) Refrigerant--R134a 26.4 oz. plus 6.8 oz. of PAG oil

Lubricants Brake Fluid--DOT 4 Engine Oil--APISH or SJ (SAE 10W-30) P/S fluid--Dexron IID or IIE or Mercon Auto trans fluid- Dexron IID or IIE or Mercon

Maintenance Requirements Oil & filter--7500 miles Brake fluid--replace every 2 years Coolant--replace every 30k miles Spark plugs--replace every 30k miles Valve adjustment--not required Timing belt--replace every 60k miles

Chassis Specifications Drivetrain FWD; 5-spd. M/T or 4-spd. A/T w/lock-up torque converter

Brake System Vacuum assisted disc/disc, Bosch ABS

WS Sensor Resistance 10-40 [Omega] Front Disc Thickness 0.906 in. (23mm) minimum

Rear Disc Thickness 0.331 (8.4mm) minimum

Suspension System Front: MacPherson strut with offset spring, 20mm stabilizer bar Rear: Volvo Delta-link semi-independent, 19.5mm stabilizer bar Lug Nut Torque: 81 ft.-lbs. (110Nm)

Front Alignment Specifications Toe in: 0 [degrees] 20' [+ or -] 6' Camber: 0 [degrees] [+ or -] 1' Caster: 3 [degrees] 35' [+ or -] 1 [degrees]

Rear Alignment Specifications Toe in: 0 [degrees] 7' [+ or -] 18' Camber: -1 [degrees] [+ or -] 30'

Technical Notes

When designing a front-wheel-drive chassis, getting a transverse mounted 5-cyl. engine and the transmission into the same end of the car presents both packaging and weight-bias concerns. Volvo's answer is an aluminum front sub-frame and engine. The block is open-deck with iron liners. It's split horizontally at the crankshaft so the main bearing cap web actually forms the lower half of the block. With the aluminum sump, the whole assembly adds up to a very stiff structure. The camshafts are driven by a single belt with an oil pressurized automatic tensioner. The dual-tract intake manifold is vacuum actuated, controlled by a duty-cycle solenoid valve. Engine management is Bosch Motronic 4.3 except for vehicles sold in California, Massachusetts and New York, which are equipped with Bosch 4.4 to meet local emissions regulations using all the same components. With the 4-spd. automatic transmission in Winter/Wet mode, it starts out in third gear and the optional traction control selectively applies a front brake to control wheel spin below 25 mph. Three other versions of this chassis share the same engine and automatic transmission, but the T-5 and R models are both turbocharged.