fuel hoses

kellaig

Seaman
Joined
Jan 15, 2002
Messages
63
I was wondering whether it is possible to mix different brand and different size internal diamters of fuel hoses.<br /><br />i have a honda 30 hp that purrs in the tank but after a while on the water it stalls. It has a bout 3.5 metres of fuel line with about 2 metres of Mercury 8-9mm hose and the rest standard honda of 6mm. <br /><br />could the larger size diameter hose put to much strain on the water pump whilst at low idle.<br /><br />Regards<br /><br />Kellaig
 

Spidybot

Lieutenant Commander
Joined
Apr 4, 2002
Messages
1,734
Re: fuel hoses

Fuel hose dia is hardly your worry. If the original was 6 mm that'll do. Larger diameter isn't a problem.<br /><br />You have to check that your tank vent (tank cap) is working. If it's clogged your tank will be under increasing vacuum the longer you run - and when this exceeds the capacity of the fuel pump no fuel will reach the engine. Can be checked by taking the cap of after running a while. Notice if the tank sucks a lot of air in. If your motor works with the cap off, you've found the problem.<br /><br />Same thing if the hose has a leak: The pump sucks it's best on the hose, but if air gets into the hose between tank and motor, fuel will be insufficient and after a while your fuel system runs dry.<br /><br />Look it all over and replace all hoses that looks suspecious. When you remove the prime bulb from the hose look carefully for minor cracks on the hose inside.<br /><br />Remember to replace with certified FUEL hoses and fittings.
 
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