How to Replace an Oil Pump in a Geo Tracker

An oil pump is a necessary tool for the survival of the engine. It keeps the engine components in the Geo Tracker lubricated. Without lubrication, an engine is destroyed. In most cases you don't need to replace an oil pump, but in some cases, such as an engine overhaul, you might want to.

Instructions

Remove the Oil Pump

1

Disconnect the negative battery cable and take out the timing belt and tensioner as well as the alternator and mounting bracket. Remove the air conditioning compressor bracket bolts, supporting the compressor so it's out of the way. Make sure you don't disconnect any of the air conditioning lines.

2

Move your Geo Tracker up onto ramps or lifts so you have room to work as you pull out the oil pump. You could also use a jack, but make sure you brace the front wheels so they don't roll. In addition, set the emergency break firmly into position so the car doesn't roll.

3

Drain out the front differential oil and the engine oil then take out the lower transmission inspection cover. Loosen the center bolt of the crankshaft timing belt sprocket and remove it. Use a tool like the Suzuki Tool 09257-56010 to prevent the crankshaft from turning.

4

Remove both the oil pan and the oil pump pick-up, then loosen the remaining mounting bolts (there are seven of them) and the oil pump housing.

5

Take out the oil pump rotor plate and the outer and inner housing rotors. Remove the oil seal from the housing with a seal removal tool then take out the oil pressure relief retaining snap-ring from the housing bore as well as the retainer cap, spring and piston. Clean all components thoroughly.

6

Install inner and outer rotors in the oil housing bore after cleaning. The small dot should be pointed away from the housing. Check for wear and replace parts if necessary.

Insert New Oil Pump

7

Drive a new seal into the seal bore with an oil seal installer. Apply clean oil to the oil pump rotors and seal lip and inside surfaces of the new oil pump to lubricate them.

8

Install the relief valve, the spring, the retainer cap and a new snap-ring in the housing bore then add the inner and outer pump rotors in the housing. Tighten the retaining screws (five of them) after you insert the rotor plate. Check to make sure the rotor plate spins smoothly.

9

Insert the new oil level dipstick tube seal into the housing and put in the tube bracket, tightening it securely. Install the new oil pump housing-to-engine block gasket. Look for the crankshaft and use the Suzuki Tool 09256-11510, coated in engine oil, to keep the new oil seal lip from being harm when the oil pump housing is installed on the engine block. Align the flats of the crankshaft to the inside of the oil pump bore and slide the oil pump housing onto the crankshaft and against the engine block until flush.

10

Screw on the oil pump housing mounting bolts, torquing them to 30 in-lb. The longer bolts go into the lower holes.

11

Add a new rubber seal between the water pump and the oil pump. Check to see if the gasket on the lower oil pump edge protrudes. If it does, trim it with a knife so it's flush with the surface.

12

Reinstall the timing belt guide, key and crankshaft timing belt sprocket, timing belt, tensioner, oil pump pick-up, oil pan and all other related components. If you have a four-wheel drive model, install the front differential unit.

13

Fill the engine with fresh oil and reconnect the negative battery cable. Start the engine on your Geo Tracker and check for leaks.