Thread: Fuel selector valve dissected
05-21-2007, 10:33 PM #1
- Join Date
- Oct 2006
- Cleveland OH
Fuel selector valve dissected
I was fooling around today and decided to see what the issue is with the old fuel valves going bad. I was very surprised to see how simple it is. But on the same note, how small the orifices are.(9/64") They are smaller than the fuel hose nipple ID.(11/64") That added with a 90* bend wouldn't take much to restrict flow. The small ball bearing is used to plug the hole from drilling the orifices. The problem I see is the rubber seal inside the housing, not the O ring on the valve, possibly folding over the orifice opening. It's pretty simple, and possibly rebuild/maintainable, rather than just replacing them? I know it's not expensive ($27) but when you need 3 of them, it kind of is. Just thought I would give some insight on this.
05-22-2007, 04:13 AM #2
You are 100% correct. That is the EXACT issue with those valves.
Happened to me repeatedly back in 1993 on my SL 750. I know it sounds crazy, but I finally figured it out and showed my dealer who was unaware of it back then. This boat was purchased new by me, and they were not aware of the issue yet.
On another note.... imagine those tiny little holes feeding an entire motor. Things that make you go hhhhmmmmmmmmmmmmmm!!!
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