Paul Despres posted a note on in-the-car oil pump replacement in a 200 series. This stimulated me to try a 700 and 900 series.

Problems: Cold idle 1.5 bar

Hot Idle: less than .5 bar

Cold at 2000 rpm, 2 bar +

Hot at 2000 rpm l.5 bar

Not good and below spec.

Engine approx 130K. This is a turbo running Mobil l.

Followed the Volvo manual and changed out pump in approx 6 hours after fabricating a jig to hold the engine up slightly. Built out of 2x6 yellow pine, a couple of chain repair links and a 1/4 inch hook eye.

How to:

Take off licence plate and bracket so you dont make new holes in your body. Place car on jacks. Locate them on box frame just before the box slopes and becomes small. Take off belly pan. Unbolt sway bar at frame only. Undo steering shaft at U joints and slip upward. Remove negative cable from battery. Remove intake hose (turbo) from intercooler to intake manifold. Loosen power steering res. Clip tie holding hose to motor mount.

Under engine, remove nuts and bolt from bottom of pass. side motor mount. Remove entire motor mount series of bolts and nuts, 6 total.

Snug up and lift slightly on engine jig. I used a nut to tighten and lift the hook eye connected to the lift hook on the tstat housing.

Unbold the frame, 4 bolts. It will drop slightly. Undo bolts and remove the reinforcement plate between engine and bellhousing. Remove motor mount from the driver side. No need to remove actual rubber from metal portions. Un bolt oil pan, drop and rotate nose toward the driver side (this is why you remove the motor mount.

Remove oil pump, replace with new one and new rubber O rings on feeder pipe. Lube rings with oil or vaseline to help with reassembly. Carefully reassemble pump to block aligning pump driving shaft with driving shaft from engine. Clean pan and gasket left overs.

You can also replace your rod bearings if you want. I did on one of the cars---less than an extra $30 using a standard size.

Reassemble.

Results:

Cold idle: 4 bars

Cold 2000 rpm: 4.5-5 bars

Hot idle: 3.5-4 bars

Hot 2000 rpm: 4.5 bars

As Paul experienced, both engines (B230FT) are much quieter re piston slap.

I used a Febi Bilstein HD pump in both. Cost approx $120 without rod bearings and approx $150 with bearings.

This is not a bad job to do and may prevent some major blowups on engines which are good, but have a failing oil pump. So far I have a series of 5 oil pumps which I have replaced either rebuilding an engine or as this and all show the same wear pattern. Mileage usually in the 125-150K. All turbos. Believe they are 'wear items'.

Sorry for the long post, but it is something you can do, but the first one takes longer than successive ones.

dick