7.4 lx efi falls on its face and hesitates
I've got a 7.4 lx efi the motor is tbi injected the problem I'm having with it is it falls on its fact on the top end. I have replaced cap, rotor, plugs, wires, checked fuel pressure 30psi under load, set timing at 8 degrees in base timing mode, replaced fuel water separator and still is doggy any thoughts?
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I believe there is another filter by the throttle body also. Dump your separator in a coffee can (yes again) and see what you have.
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No other fuel filters but I will drain the seporator and see what I get
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Drained the seporator and hooked an aux tank up with fresh fuel no change
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REv limiter ?
Is this a new boat or engine to you ? Describe "falls on it's face " Overpropped ? |
No the boat is not over proped I'm running a 21p it will bog reving it in neutral
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It will run fine till about 3/4 throttle anything after that it just bogs only get 4100 rpm on a good day the boat is a 22 scarab
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Any trouble codes ?
What rpm did it run with the same prop when it ran well ? |
It never ran right from day one bought it last year towards the end of the season so didn't use it much
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Anyone with any thoughts???
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