Bought this new on our Crest pontoon in 2019. I've replaced the low pressure fuel pump twice and now today, I start the engine and I see fuel spraying from the fuel cooler area, which mounts to the side of the Water Separator Tank. 
I pulled that apart and it appears that the o-rings are shot. So I either replace those or spring for a new part for $520.00.
Does anyone know if these engines are able to tolerate even 10% ethanol? I'm beginning to think that both fuel pumps (rubber degradation) and the o-ring degradation is ethanol fuel related.
I pulled that apart and it appears that the o-rings are shot. So I either replace those or spring for a new part for $520.00.
Does anyone know if these engines are able to tolerate even 10% ethanol? I'm beginning to think that both fuel pumps (rubber degradation) and the o-ring degradation is ethanol fuel related.