Installing a Racor separator on a 1GM

[richrand]

Hi,

I just installed a 1GM into my boat. I have a Racor fuel/water separator already mounted that was used with the old engine.

Where inline do I install this? Can I run it in between the fuel tank and the fuel feed (transfer) pump?

Thanks,

Rich

[Slooptattoo]

Install as the first connection coming from the fuel supply line from the tank. This way it keeps any contaminants from the fuel lift pump, secondary fuel filters and the fuel injection pump. If you also have an electric boost pump installed, make sure the racor is prior to this pump as well. The design of the racor is to keep contamanants from any of your engine fuel system. Good luck.

[Rockter]

Sloop...
What is your reason for the boost pump being after the Racor.
I have the opposite (pressurised Racor), and it's been that way for 15 years.

[camaraderie]

Rock...I agree with Sloop...contaminants from diesel can clog fuel pump and DO void the warranty on most secondary fuel pumps found in this country. I had regular problems with your arrangement in a prior boat until I swapped positions and when the pump fails...the symptoms are exactly the same as a clogged filter. I understand that some pressure fuel pumps are not affected by such placement...so best thing to do is to read the instruction manual (or warranty to see if filtered input is a requirement) since your type of placement has advantages in changing filters.

[JimsCAL]

The only reason for intalling the filter after the pump is if the filter pressure drop was causing suction problems for the pump. It's also important to install the filter a little bit above the tank full level otherwise fuel will run out when you go the change the filter cartridge.