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| Joined: | 04-16-2018 |
| Location: | Santa Barbara, California USA |
| Posts: | 22 |
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Thanks Tom & Tim.
Tim, when 'deleting all that stuff' where is the anti-siphon check valve installed? Wasn't it originally installed in the bypass hose going from the t-fitting back to the tank?Hi Rick,
My J-H does not seem to have any sort of anti-siphon valve, but it had already been converted to Dellortos and thus the fuel return line/"pressure regulator" orifice had been deleted. The anti-siphon check valve is installed in-line between the tank and the carbs to prevent flow unless its pressure rating is overcome (usually around 0.5 PSI from what I have seen). Otherwise the only things keeping the carb fuel bowls from overflowing with fuel when parked nose-down are the needle and seat valves.
Anti-siphon devices are required by the US Coast Guard for marine applications to keep fuel in the tank in case of a fuel leak elsewhere in the system. As I am currently finalizing my fuel system, I plan to walk to my local marine store this weekend and pick one up!
Chris