I have a Perkins
4-154 in a CSY
sailboat. When I purchased it I changed the fuel filters (they were both like the bottom of a swamp). When I was doing this I noticed that the check ball valve in the big racor had come and was floating in the bowl so I put it where it belonged (bad idea). I tried to prime the engine and was getting fuel to the points on the engine where it needed to be but the engine would not start.
What had happened - the $^##**@ Racor was put on backwards so the check valve was working as it should and stopping the fuel flow to the engine. To make matters worse the check valve in the 2 micron filter was checked shut. The Racor was in a bad position so I could not see the flow arrows. The only way I found it was to cut the fuel line where it went into the engine - tada no fuel.
I was told apparently some fuel filters with internal check valves do go bad right out of the box. I ended up replumbing my fuel line and putting in an electric
fuel pump to prime the engine - THAT WAS A GREAT DECISION!!!!!
Now for extra credit - Why was the fuel comming out of the bleed points if it was not getting to the engine in the fist place. I thought "My boat is making diesel
. The world energy problem is solved
What was happing is the top of my tanks
are higher than the engine. I had filled the tanks
to the top and I was getting fuel through the return fuel line. It would flow (backwards) into the engine. My 76 year old dad had to come down and help me figure this one out. Perhaps they are right that experience counts. I have always believed that experience is what you get @ 20 seconds after you need it.