Raycor seperator problem

[Chablis]

I am having an issue with my Raycor seperator - it is extremely difficult to get the fuel to flow out of it - even with a new one. The motor is a Yanmar 2GM20F model. Any ideas? Doug Wanderer88@hotmail.com

[erps]

If you mean it's difficult to bleed the air out after a filter change, you're right, that can be a problem. If you fill the replacement filter with clean fuel before screwing it on, it helps. You also need to be sure that the connections are tight, as your fuel pump on your motor is typically sucking fuel out of your fuel tanks and any leaks will leak air bubbles into the suction side and serious hinder how much fuel oil the pump can suck.

[Gary1]

Chablis,

If you're fighting an air bubble in the filter after changing it and sucking air into the engine, my fix for that problem was to put an outboard squeeze bulb into the fuel line right before the Racor. That way you can pump the fuel straight into the system. Just go downstream and crack open a fitting and pump fuel until there is no more air.

If your problem is that you can't get fuel flow from the system to begin with, I'd guess that you have a 'sock' or filter screen on the tank pickup tube. You can try hooking a compressor to the line and blowing the crap out, but that would be putting a bandaid on the problem. If your pickup line is clogged with dead critters, etc. You need to clean the tank out.

Another thing to consider is that if the filter is getting filled up with water right after you change it, that automatically stops the flow. To check for that, you need to suck a little fuel from the filter's input side into a glass or plastic jar and see if there's water in it.

Just a note: if you don't keep your tank full all of the time, during the summer you'll get condensation in the tank, and it goes straight to the bottom. That's bad news for two reasons: 1. the engine won't run on water. 2. it's in that boundary layer that algae sets up camp.

Good luck.