B2300 Regular Cab 2WD L4-2.3L VIN A (1997)
The compression pressures are considered within specification if the lowest reading cylinder is within 75% of the highest.
Compression:
Lowest reading cylinder within 75 percent of the highest. (Refer to image.)
10. If the compression in one or more cylinders is low, pour a small amount of engine oil into the cylinder and recheck the compression.
(1) If the compression increases, the piston, piston rings, or cylinder wall may be worn.
(2) If the compression stays low, the valve may be stuck or seating improperly.
(3) If the compression in adjacent cylinders stays low, the cylinder head gasket may be damaged or the cylinder head distorted.
11. Connect the harness connectors to the ignition coils.
12. Install the spark plugs.
Tightening torque:
7-14 Nm (0.7-1.4 kgf.m, 5-10 ft.lbf)
