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Old 11 July 2004, 14:55   #1
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The bloody thing konked out today!!

Hi Folks

Some help and advice required please

Today we went out to IOW went from Langstone Over to the island having been running from a full tank for about 25mins the engine started to lose power then surged then lost power then surged then the bloody thing konked out!

A couple of mins later it restarted and did it again. I then changed the fuel tanks over to the plastic spare and returned for home with a not entirly happy engine.

On getting home opened up the Metal fuel tank which had created a vacuum inside! Should this happen or should the tank breath?

Anybody else got any ideas?

I have cleaned out the fuelfilter,the plugs and the fuel is only a week old.

Many thanks

Graham
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Old 11 July 2004, 14:57   #2
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Definitely sounds like a blocked breather to me - tanks need air to go in - try sucking hard on plastic pop bottle!
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Old 11 July 2004, 15:04   #3
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If you can shake it a little (someone!) it might unblock - the internal pressure should be sufficient to clear the blockage.....
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Old 11 July 2004, 15:22   #4
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Defiantly a fuel problem!!!

As everyone has already mentioned! Blocked breather for the tank!!!
Or it could be a blockage in the fuel pipe or the carbarettor?????

about 95% certain on no air gettin into the tank though!!!!


Ian J
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Old 11 July 2004, 15:40   #5
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You did unscrew the little widget on top of the fuel cap? yes?

Pete
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Old 11 July 2004, 17:20   #6
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Quote:
Or it could be a blockage in the fuel pipe or the carbarettor?????
Easiest way to check if it's the pipe is to disconnect it from the engine, stick an impliment in the hole where the fuel comes out (to move the ball bearing and allow the fuel to come out) then squeeze the bulb. Odviously, if no fuel comes out, you've got a blockage....
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Old 11 July 2004, 17:21   #7
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You mention that you swapped over tanks and that the outboard still wasn't happy.....Could this also have had fuel breather problems I ask? Was it the same symtoms, and where did you change fuel supply from/to......Completely different fuel supply with dedicated hose, or just swap hose from one tank to other. If latter you could have a fuel blockage in pipe/filter or have water in filter from first tank or something.

Food for thought!

Andy
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Old 11 July 2004, 17:48   #8
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Fuel Problem

Nemo

If you bought your fuel at the Ford Garage on Hayling Island, at very expensive prices, then I know also other people that have had fuel problems.

Have you got a filter.

Although I must agree the obvious cause is a non existant fuel breather, or blocked one.

Regards Nick R

PS Look forward to seeing you on Aug 8th for the small RIB round the IOW trip. With some Big RIBs prowling round, of course.
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Old 11 July 2004, 19:36   #9
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Another problem could be water in the fuel!!!!

Cars seem to handle it 10 times better than boat engines!!!!

Try feeding a fuel pipe to the bottom of your tank and pulling the fuel through with the bulb!!!!!

It's only a possibility but i've seen a few boats cut out because of water in the fuel!!!!


Ian J
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Old 12 July 2004, 03:45   #10
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Thanks for the advice chaps

The problem i think is the tank. Its a metal Yamaha fuel tank that does not seem to have any breathers attached the cap seals and does not(unlike my plastic tank) have the little widget that you undo.

With regard to the engine not being entirly happy on the other tank that may just have been my imagination! Have had the fuel filter apart and removed some grot!!!

Look foward to a successful round the island with some of you chaps!
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