Honda 150 Water Pressure

toyman · Posted: Wed Apr 28, 2010 2:40 pm Post subject: Honda 150 Water Pressure

My water pressure gage has not worked since I bought the boat. The pointer was pointing straight down. Yesterday I decided to dig into it. I pulled the line line fitting off of the engine and blew into it - nothing. I then hooked the compressor to it, still nothing. I disconnected the gage and tried, still nothing. I ran a long aircraft drill into the tubing fitting from the engine end then tied the air compressor into it (in the cabin) and blew - the line cleared and I blew it dry. I connected the gage back and blew into it with the compressor - still nothing. But If I hook a vacuum pump to it the gage will register back-wards, but the tube and gage hold the vacuum so nothing is leaking. Looks like I need a new gage ? Where ?

Dreamer · Posted: Wed Apr 28, 2010 10:17 pm Post subject:

Sounds like the needle has jumped over the stop. Probably no way to get in there and fix it..Bummer

Captains Cat · Posted: Thu Apr 29, 2010 8:22 am Post subject:

I don't think many of us have gauges for water pressure. I just use the visual one (tell tale or a more vulgar name) that seems to work fine. Just one more thing to go wrong.

Charlie.

toyman · Posted: Thu Apr 29, 2010 9:45 am Post subject:

Ya, I kinda figured that it had jumped the stop - and - since it is a sealed unit (glued) it may be non repairable, but I'm tryin' ! Of course the next question that begs to be answered - why would it jump the stop ?

I don't really need the WP gage, but since it's there, it may as well work. I found a replacement for ~$35.