That old
Volvo looks pretty good for a 30 year old (or so)
engine that has not had too much care. Spend a lot of time with the small wire
brushes on an
electric drill before you use the Ospho, and follow the directions on time and rinsing, and rustolium primer, or some other good metal primer, and the
engine will probably out last you. To make things more dependable while you are working on it, remove the wires from the starter solenoid and polish them up, and put the kind of grease that auto
parts stores sell for
battery terminals, and that will stop one more possible
corrosion point. For the parts that are easy to remove(air cleaners,etc) take them home or to a shop and beadblast and paint. Those are a good engine. Just my 2 cents worth. ______Grant.