Ranger Tim
Well-known member
Had a wonderful three days camping on the 2120 this Memorial Day. Had the F150 stall twice during the weekend, which was worrisome. Both times it stalled when jumping up on plane after idling for an extended period. It would run great for about 15 seconds then stall. It took several tries to restart. After starting I ran it up to cruise rpm slower with no problems.
First time this happened I figured some blockage at the separator filter might be to blame, so I changed it (had a spare on the boat). I use the big blue Yamaha ones. The old filter showed about a 1/2 cup of water and some slight sediment/goo, but not enough to cause any problems IMO. The bowl an the engine filter is clear with no water, but does not fill completely, leaving about an inch of air at the top. The primer bulb filled it up on the first instance, but the second time this happened the primer bulb had no impact (the air gap remained), yet seemed to prime the system and the engine cranked up and ran fine. No fuel leaks in the bilge and no smell of gas anywhere. In the back of my mind it seems like the primer bulb doesn't get as firm as it should either.
My guesses are:
1) Air leak in the fuel supply system/hoses, etc.
2) fuel restriction due to corrosion.
3) Vent clogged
I live and work in an ethanol free zone and all fuel in the boat is E-10 free as well. Any guesses as to where to look first? It was disconcerting to be 50 miles away from home port and having engine hiccups.
First time this happened I figured some blockage at the separator filter might be to blame, so I changed it (had a spare on the boat). I use the big blue Yamaha ones. The old filter showed about a 1/2 cup of water and some slight sediment/goo, but not enough to cause any problems IMO. The bowl an the engine filter is clear with no water, but does not fill completely, leaving about an inch of air at the top. The primer bulb filled it up on the first instance, but the second time this happened the primer bulb had no impact (the air gap remained), yet seemed to prime the system and the engine cranked up and ran fine. No fuel leaks in the bilge and no smell of gas anywhere. In the back of my mind it seems like the primer bulb doesn't get as firm as it should either.
My guesses are:
1) Air leak in the fuel supply system/hoses, etc.
2) fuel restriction due to corrosion.
3) Vent clogged
I live and work in an ethanol free zone and all fuel in the boat is E-10 free as well. Any guesses as to where to look first? It was disconcerting to be 50 miles away from home port and having engine hiccups.