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Message |
    
Robert Portch
New member
Username: rob_portch
Post Number: 1
Registered: 09-2010
| | Posted on Tuesday, September 14, 2010 - 12:26 pm: | 
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I have a Stuart Turner R3M which is running fine apart from that after about a minute it cuts out. The boat has been fitted with a new fuel(anti-syphon) tank with a inline rubber bubble primer hand pump. In order to keep it running I have to pump the primer every minute or so. I find it difficult to understand why this should be necessary on a gravity feed system. Any ideas? |
john.kenneway
New member
Username: jbz2079
Post Number: 2
Registered: 09-2009
| | Posted on Tuesday, September 14, 2010 - 01:46 pm: |
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Robert, The valves in the primer bulb are overcoming the effects of gravity, stopping the fuel from flowing.
These primers are usually fitted downstream of a lift pump or an injection pump that won't really see the resistance of the valves in the primer.
Try by-passing the primer with a small length of pipe and see if the engine runs properly. |
Peter Ogborne
Senior Member
Username: peterogborne
Post Number: 305
Registered: 09-2002
| | Posted on Saturday, September 18, 2010 - 09:36 pm: |
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Robert....keep it simple ,gravity feed ,piping with no air locks = no trouble! |
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