Description

DESCRIPTION
The 2.5 liter (150 CID) four-cylinder engine is an In-line, lightweight, overhead valve engine.
This engine is designed for unleaded fuel. The engine cylinder head has dual quench-type combustion chambers -that create turbulence and fast burning of the air/fi1el mixture. This results in good fuel economy.





Fig. 1

The cylinders are numbered 1 through 4 from front to rear. The firing is 1-3-4-2 (Fig.1).
The crankshaft rotation is clockwise, when viewed from the front of the engine. The crankshaft rotates within five main bearings and the camshaft rotates within four bearings.





Fig. 2

The engine Build Date Code is located on a machined surface on the right side of the cylinder block between the No.3 and No.4 cylinders (Fig. 2).
The digits of the code identify:
- 1st Digit--The year (8 = 1998).
- 2nd & 3rd Digits-The month (01 - 12).
- 4th & 5th Digits-The engine type/fuel system/ compression ratio (HX = A 2.5 liter (150 CID) 9.1:1 compression ratio engine with a multi-point fuel injection system).
- 6th & 7th Digits-The day of engine build (01-31).
FOR EXAMPLE: Code * 801HX23 * identifies a 2.5 liter (150 CID) engine with a multi-point fuel injection system, 9.1:1 compression ratio and built on January 23, 1998.