The Solec manual appears wrong. This is what the Yanmar service guy tells me. My engine is a 2QM15 but the picture in the Solec manual does not match the design.
So far we have found a siezed water pump (replaced), Bad Fuel lifter (replaced), and finally (hopefully the last) the injector pump is only feeding fuel to on of the injectors. THe mech says it needs to be recalibrated...
Total cost so far:
Fuel lifter = $200.00
Water pump = $ 80.00
Labor @65/ 7 hours = $455.00
The key thing is I watched everything he did and learned how to diagnose this type of problem in case of future re-occurance.
Hopefully after today I will be on my way to Key Largo...(10 hr run from Miami)