I checked the Mercruiser 1 service bulletin 82-4 I found on here and was wondering if this procedure and flow amounts work for Alpha 1 Gen 2. I read somewhere that Gen 2 doesn't have a lot of pressure but a lot of flow. How do I determin if I have the proper flow or pressure?
My ride is a Donzi 18 Classic 2003 with a Mercruiser 350MAG MPI with a Alpha 1 Gen 2 outdrive, New water pump, SS housing, ware plate and seal.
The Pressure is running .6 to 1 psi at idle and at WOT 5.5 to 6 psi. Also read that if High pressure on these indicate a the start of a blockage or blockage.
The question is what pressure and or how much flow is correct?
Thanks George
My ride is a Donzi 18 Classic 2003 with a Mercruiser 350MAG MPI with a Alpha 1 Gen 2 outdrive, New water pump, SS housing, ware plate and seal.
The Pressure is running .6 to 1 psi at idle and at WOT 5.5 to 6 psi. Also read that if High pressure on these indicate a the start of a blockage or blockage.
The question is what pressure and or how much flow is correct?
Thanks George
Last edited: