BoatU.S. - May/June 2012

74 ASK THE EXPERTS 80 DIY 85 SEAWORTHY 88 ELECTRONICS 98 GEAR YOUR GUIDE TO PROJECTS, SKILL-BUILDING + WHAT’S NEW PRACTICAL BOATER |

PRACTICAL BOATER
ASK THE EXPERTS
SOLUTIONS FROM THE BoatU.S. TECH TEAM

WHERE’S THE PROOF?

I need to replace the starter on my 1989 Volvo 5.7L V8. There are many starters advertised as “marine certified,” with prices varying from $50 to $500 or more. Is there a telltale way to verify that the starter in question is truly ignition protected? Will there be an ISO or SAE stamp on it? The reseller says, “Yes, it is ignition protected,” but I would like to have some concrete proof. Tom Anderson, California, MD

DON CASEY: There are standards of compliance that certify that an electrical item is ignition protected, namely SAE J1171, UL 1500, ISO 8846, and USCG Title 33CFR 183.410(a). All but the Coast Guard standard specify that the device meeting the standard must exhibit a marking or label, so a new starter intended for marine use should display one of these standards. However, if you are looking at rebuilt or reconditioned starters, then the original label is of unknowable validity. In this case your best assurance is likely to be to deal with a reputable seller and to make sure the invoice specifies “marine certified”.

SCAVENGER HUNT

I just purchased a 1997 Carver 280 express cruiser, with a gasoline engine. My problem is I cannot find a fuel tank vent anywhere on the hull. When I open the mid-berth closet, I can smell fumes. Is this a production error or is it vented some other way?

JOHN ADEY: According to the federal regulations, all components and connections of an inboard gasoline fuel system must be accessible, AND a vent system is required that will not allow any liquid overflow to enter the boat.

Knowing this, there must be a vent outside the boat and you must be able to access the fuel tank and vent connections. First, find the fuel fill, the vent may be on the same side but not immediately next to the fill. It should be a small fitting with the opening pointing down so water cannot enter the vent line. If you cannot find it outside, look in the cabin floor for an access plate that would reveal the hose connections and attempt to follow the hose to the exterior of the boat. Maybe a repair was attempted and the vent was never reinstalled?

This brings me to my next point, which is extremely important. You should never have a fuel smell inside your boat. This could mean several things all equally as dangerous: