High pressure fuel pump PSI and GPH

[retiredrider]

I have 3 Mercury outboard 4 stroke engines all made in 2006 - 25hp, 40hp, and 50hp. All are EFI. I need to find out the PSI and or GPH for each of the high pressure fuel pumps for these engines. I suspect they are all the same pump - they look the same. But, they could each have different specs. Any help is appreciated.

 

[just_crsn]

Re: High pressure fuel pump PSI and GPH

I have a 2006 25HP EFI mercury, my service manual states the pressure at the electric fuel pump is 42.6psi plusor minus 10% @ 850rpm. The pressure is 4.2psi at the mechanical pump.

 

[retiredrider]

Re: High pressure fuel pump PSI and GPH

just_crsn,
Thanks for your help. Can anyone verify the PSI for the 40 & 50 hp engines?

 

[retiredrider]

Re: High pressure fuel pump PSI and GPH

Bump