I have a 1986 Dana ss 21 foot with inboard outboard set up. It has a Volvo 290 outdrive. For some reason my power steering fluid is building up so much pressure it is spraying out of the cap. If I drive it 10 minutes and check the power steering fluid level its almost dry and have to fill it back up. Anybody else have this issue?
The only thing I can think of is the previous owner may have tampered with the pressure relief spring in the back of the pump. It is a Saginaw pump, is there a power steering rebuilding shop in your area. Check with them.