I'd be wondering why you're not getting enough water to the headers. I would think that if you're running the most common set up, there shouldn't be any problem pushing water through the headers.
What are your set-ups like? Do you guys have the water line coming from the t-stat housing to the Bassett t-valve to the headers? The t-valve has a ball and spring in it that goes in a certain way to work right. Sometimes they stick or the spring breaks.
Sometimes minerals and scale can build up in the lines and fittings.
They sell restrictors that limit the flow. These could be plugged up. Do you know if you have one?
http://www.cpperformance.com/c-389-jet-header-water-control.aspx
Just some things to check if you haven't already.
The Basset t is hollow, I only run the valve near the seat. That's why I am so baffled by it because I have blown air through everything and all seems clear. If i open the valve and blow air from the line coming off of the tstat housing, you hear the air coming out of the exhaust. When I'm running and open the valve, you hear the exhaust tone change, the valve gets hot as if water is flowing through it but, no steam. So it may be getting a little bit of water, but not enough to stream like it did the first time I ever took this boat out. I'll check those resteictors, if it has them. Thanks.
Sent from my SM-G930T using
SoCal Jet Boats mobile app