Re: 150 hp water pressure gauge
Go the Teleflex site and read the instructions, etc. there. They are good and then buy a guage kit.
There should be a pipe plug fitting on top of the block behind the flywheel. There may alrady be ahose connected there. If not then you will need to put in a fitting as directed in the instructions. I think that engine needs a 0-20 # guage. Easy installation, even for a novice.
