2001 Optimax 200 Ser#0T334495. So i do not have the dual gauge for reading both fuel and air. But I had the gauge hooked up to the air side and while running, it was at 82psi. As soon as I shut the engine off it goes right down to zero and not hold pressure. Now, if I pull the kill switch and crank it over it will go up to 82 psi and hold it there for quite a while. Do you think I have a direct air injector stuck open?
Thanks
2019 Phoenix 721 ProXp
2019-250 H.P. Mercury ProXs 4 Stroke V8 Serial# 2B531797
ttt
2019 Phoenix 721 ProXp
2019-250 H.P. Mercury ProXs 4 Stroke V8 Serial# 2B531797
No sir- these earlier engine models had a tendency to "blip" power to the DI's at shutdown, resulting in a loss of all air pressure. Good job finding another method of checking for leaks!
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
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Thanks Don.
2019 Phoenix 721 ProXp
2019-250 H.P. Mercury ProXs 4 Stroke V8 Serial# 2B531797
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