How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Dominick Your Own Question
Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
Type Your Boat Question Here...
Dominick is online now
A new question is answered every 9 seconds

I have a mercuiser 4.3 v6 when under load if I open the

Customer Question

Hi I have a mercuiser 4.3 v6 when under load if I open the throttle to fast it Boggs down... Open it slower it will rev up. After getting on the plane I had a good blast up river I come to a stop and at tick over it cut out
So I tryed to start it but nothing just cranked over
I replaced the carb for a new one and no difference
Submitted: 11 months ago.
Category: Boat
Expert:  Jason replied 11 months ago.

Hi Craig, my name is Jason.

What is the history on this engine, have you personally ever seen it run correctly?

Customer: replied 11 months ago.
Don't no the history and no brought as a not runner
Expert:  Jason replied 11 months ago.

Did you check engine compression, the firing order, and timing yet?

Customer: replied 11 months ago.
Compression it good not checked the firing order or timing.
The boat will run on the hose all day long.
Expert:  Jason replied 11 months ago.

What did you get for compression numbers?

Customer: replied 11 months ago.
I don't have them to hand but was all close to eash other and what I read online they were right
Expert:  Jason replied 11 months ago.

What kinds of questions did you have for me?

Related Boat Questions