Jim Ma

Try All wheel Drive Auto. They have been around a long time.

Check the EGR valve and check all the hoses for leaks. Check all hoses going to intake manifold for carbon block. there is a small pipe going from the EGR valve to the intake check it.

First, get a service manual. You need a chain wrench to hold the crank pulley to loosen the crank pulley bolt. Buy a timing belt kit,Gates or AC Delco are good The 2.2 is a clearance engine ,meaning if the belt fails the pistons won't hit the valves. I use . autopartsgeek.com, bmaautoparts.com, Rockauto.com Etc. I would replace the cam and crank seals ,water pump ,timing belt kit. The tensioner should be ok for 300k. use torque wrench on everything(In Lb), (Ft Lb). Don't touch the oil pump unless it is leaking. If you work on BMW this is a piece of cake. JM

I found some good Info. and photos for , timing belt ,oil pump.oil pan.water pump etc Beergarage.com

Power steering pump repair kit Subaru # 34419AA150 list $35

Is it a gasket or a o ring on the back of the pump? Is it available at dealer?

Check out this website,there is an article on timing belt allwheeldriveauto.com

A note on timing belt change. To loosen the crankshaft pulley bolt I use a bought a chain wrench (Harbor Freight) it goes all the way around the crank pulley and stops it from turning. There is a great site that shows timing belt replacement and other tips ,check it out. allwheeldriveauto.com or Beergarage.com good photos