NO they are washing their hands of the issue and LEAVING ME OUT TO DRY!!!! I had, at their request, a in the water running computer data recording done by a dealer, sent TO THEM!! There response...Take it to a dealer, IT WAS AT A DEALER. Upon recpt of the data.....I DUNNO>>>Dammit thats not good enough!! Now the engine is on the DYNO at the best facility on the west coast. The word is teardown to chase the problem WITH NO HELP FROM MERCURY the RACING GODS

Insurance would not cover this problem.

Man thats a stumper....
You checked about as much as you could to find something, but you say all is norm?
Maybe a valve guide seal is bad on an intake valve.

I Am Asking For Their Tech Help Only No Money Or Warrenty. They Are Still Not Willing!! Really Good Company>>>>Anyone Buying Expensive Merc Racing Products Beware!!!!!!!

You may be right, but I wouldn't rule it out without a phonecall to my insurance first.

Insurance would cover it if it were to catch fire. Then lawsuit time. You know, like the rest of America would do.

You say that, You would be shocked what I have found in motors over the years.

Just a thought, if both motors are out of warrenty you could try swapping parts (fuel pump, regulator, injectors, etc...) between the two motors and see if the problem follows. Just because it tests good on the bench doesn't always mean it's good to go. Also who was doing the tests... the same guys saying " I dunno"?

Good luck and let us know what it turns out to be.

check the vaccum line going to the regulator and see if fuel or fuel odor is present = leaking regulator diaphram

+1

Also might check the vent line off the lift pump
( fuel pump mounted on the sea pump assy)
for pushing fuel.