2005 Optimax 115 fuel delivery problem

check6x

Recruit
Joined
Aug 18, 2007
Messages
2
After sitting idle for four months in Mexico the engine would not run. The inlet needle valve was held closed by accumulated varnish. With this problem cleared the engine ran fine until stopped then it either refuses to start or starts but dies when prop is engaged.

I read on this forum about fuel pressure and on the fuel distribution block there are two Schrader valves and at the top valve I can see the pressure exceed 100 PSI using a tire gauge. When the engine is malfunctioning if I bleed these valves I get liquid under significant pressure from the top one and vapor at low pressure from the bottom one. Reversing the order of bleeding does not change the results. However, after doing this a couple of times the engine will run fine and take you where ever you want to go until you turn it off.

Fuel injection is new for me and I hope this doesn't sound like my wife telling me about a trouble with our '69 El Camino.

Any help will be greatly appreciated.
 

iwannagofast

Seaman Apprentice
Joined
Jul 26, 2007
Messages
42
Re: 2005 Optimax 115 fuel delivery problem

did you figure out your problem I have the exact same symptoms right now with my 07 opti 115 I have fuel and pressure at the top valve and just air at the bottom valve.
 
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