Items to fix for insurance, Pearson 30

fred1diver

fred1diver

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Aug 17, 2013
1,053
Pearson P30 202 Ottawa/Gatineau
Hey everyone, getting closer to buying that Pearson 30, looking over the survey, there are a few items that I don’t know how to solve

Anti-siphon on the gas intake, I understand an anti-siphon on the head, but the gas line is maybe 4 inches long, straight drop, the gas inlet is on the cockpit floor and the tank is right below it.
A ground wire on the gas tank, do I just run a cable from the gas tank to the negative bus?
 
shemandr

shemandr

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Jan 1, 2006
7,624
Slickcraft 26 Sailfish
On my Ranger 29 the gas fill was on the cockpit sole. It was about 12 inches to the fuel tank - a straight drop. No need as far as I know for anti-siphon. Surveyor never called that out. You may be caught in a current standards vs. older standards vortex.
 
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Dalliance

Dalliance

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Oct 6, 2007
1,145
Hunter H30 1982 Chicago IL
Can’t image why you would need an anti-siphon on the fuel fill hose or how it’s even possible. Anti-siphon in the fuel vent hose maybe? Some kind of anti-theft device that prevents someone from siphoning out your fuel? A typo in the survey? I would contact the surveyor and ask for clarification.
 
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L

Len Ingalls

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Jun 18, 2015
69
Mascot 28 Pilothouse Motorsailer Grand Manan

The Dreaded Anti Siphon Valve

Like so many boaters I was stranded without fuel getting to my engine and removed the anti siphon valve from the tank. I know the Coast Gaurd wants you to keep them so the fuel doesn't drain into the bilge in case of a leak but I left it out like everybody does, so I keep running smoothly. My...
forums.iboats.com forums.iboats.com
 
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Rich Stidger

Rich Stidger

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Feb 10, 2004
4,151
Hunter 40.5 Warwick, RI
I read the link provided by Len above and with all of the comments trying to explain the situation, I became somewhat lost.

Definitely contact the surveyor and ask for an explanation.

I owned a Morgan 30 with a tank just below the cockpit sole. It had a 4" straight drop into the tank which was mounted ABOVE the A4 engine. The anti-syphon valve is not on the fuel inlet fill but on the fuel outlet to the engine. The anti-syphon valve is a spring loaded valve connected directly to the tank before the fuel line to the carburetor. The purpose of this valve is to stop fuel from FREELY flowing out of the tank in the event of a fuel line leak or a carb float valve failure.
When the engine is running, the fuel pump sucks the fuel out of the tank by overcoming the spring valve. When the engine stops, the spring in the valve causes the valve to close.
Poor running of the A4 relating to this fuel delivery system can be a sticky anti-syphon valve that does not open fully or a fuel pump that no longer has sufficient suction to open the valve and pull fuel.
FOR YOUR SAFETY I WOULD NOT REMOVE THIS VALVE.
Regarding the gasoline smell: It only takes a few drops of gasoline to create a strong odor. The source could be a seeping carb gasket, a leaking fuel pump, a fitting that is not tight, or if you have a rubber fuel line it could be some kind of permutation issue. I would wash down the engine with a de-greaser, dry it completely, and then start looking. Tissues wrapped around fittings might help to identify the source.

Good luck.
 
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