Workshop Manuals Factory service & repair Geo
01 Relays and Modules02 Sensors and Switches03 Maintenance04 Engine, Cooling and Exhaust05 Powertrain Management06 Transmission and Drivetrain07 Brakes and Traction Control08 Starting and Charging09 Power and Ground Distribution10 Steering and Suspension11 Heating and Air Conditioning12 Restraint Systems13 Accessories and Optional Equipment14 Body and Frame15 Cruise Control16 Instrument Panel, Gauges and Warning Indicators17 Lighting and Horns18 Windows and Glass19 Wiper and Washer Systems
Geo Spectrum L4-91.5 1.5L (1989)03 · Maintenance
03 · Maintenance

Timing Belt: Specifications (page 3 of 3)

Make
Geo
Model
Spectrum
Engine
L4-91.5 1.5L
Year
1989
Section
Timing Belt
MaintenanceSpecifications · page 3 of 3
background image

1.

Install crankshaft timing pulley, ensuring Woodruff key is properly positioned, Fig. 10.

2.

Position pulley on crankshaft, aligning pulley timing groove with mark on oil pump, Fig. 10.

3.

Ensure camshaft pulley timing mark is aligned with upper surface of cylinder head and dowel pin is in up position, Fig. 11.

4.

Position timing belt arrow mark in direction of engine rotation and install belt over pulleys, Fig. 12, in the following order: crankshaft, camshaft,
water pump, tension.

5.

Loosen tension pulley bolt. Insert a hex wrench into tension pulley hole, then temporarily tighten bolt while holding pulley stationary.

6.

Turn crankshaft two complete revolutions and align crankshaft timing pulley groove with mark on oil pump.

7.

Loosen tension pulley bolt, then apply tension to belt and torque bolt to specification listed at the end of this section, while holding pulley
stationary.

8.

Turn crankshaft back approximately 50° and set crankshaft at that position.

9.

Check belt tension using suitable tension gauge. Tension should measure 39.6 to 48.4 lbs.

10.

Check valve clearances as previously described.

11.

Apply suitable sealant to cylinder head mating surface and four points of each arched area of Nos. 1 and 5 rocker brackets.

12.

Install valve cover.

13.

Install timing cover and torque bolts to specification listed under SPECIFICATIONS/MECHANICAL SPECIFICATIONS/TIGHTENING
SPECIFICATIONS
.

14.

Install crankshaft pulley and torque bolt to specifications.

15.

Install starter motor.

16.

Install engine mount bracket.

17.

Install engine.

Pinch or Ctrl + scroll to zoom. Double-tap to reset.

Parts & tools for this job For 1989 Geo Spectrum 1.5L

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.