2005 Angler - restricted fuel flow

Y

Yakmandu

New member
Just got back from a few days on the water. Everything ran well until I switched to the port fuel tank. As soon as I tried to accelerate, the engine bogged down. It would die if I didn’t back off. I went back to the starboard tank and all was well. So I know I have a problem with the pickup, fuel line, or fuel switch.

My question is should I replace all the fuel lines since the boat is 15 years old? I’m not sure how long the lines last. I would also replace the flow switch and bulb.

Is this warranted, or am I paranoid...
 
I would replace all with premium fuel hose. Does your motor have 90 deg bend hose bend into motor by cowling ? You cant see it if a rigging tube was installed. Yamaha calls it a 90 deg fuel pipe. and it can clink and block fuel.. m2cw
 
There are multiple points of failure: Hoses, fuel valve, the pickup tube (screen at the end--if so fitted, may be plugged up.), or crud in the pickup tube. Also the anti siphon valve (at the pick up tube head.). Also fuel vent plugged up--ie mud dabber, hornet etc.

Has the boat always been run on non ethanol fuel? What does the fuel water / fuel filter bowl look like. (I check this before each trip-and daily if cruising.)

Quick and dirty, would be to first place the fuel hoses (and check vents)--as noted. (change both hoses while you are at it). Then blow compressed air into the tank. Use a suction valve directly on the hose from that tank, and see if there is resistance. When you change the hoses, good time to check the anti siphon valve, and fuel pickup.

If I was on the water, I would first check the fuel filter bowl. Then work the fuel valve back and forth to see if there was an obstruction (or correct position--Sometimes the fuel selector has been mislabeled. You I carry a double hose barb in my "spares" kit, so I can cross connect hoses and thus do directly from the squeeze bulb (carry an extra of those also)--to try and get fuel from that tank. If it is still restrictive, I would blow air from my high pressure (11.5 PSI) inflatable pump back into the hose, to try and clean any block in the pickup. also consider removing the anti siphon valve. (Not really necessary in the 22--OK ABYC suggests it)..
 
I had the same problem when I would switch over to my port tank. I called Moeller, which makes the pick up tubes.

One of their helpful engineers advised that their could be a microscopic vacuum leak where the plastic pickup tube attaches to the aluminum fitting. I replaced the pickup tube (approx $40) and the problem was fixed. Here's the model number for the tube: Moeller 635021-10 22" Flexible Fuel Pick Up Assembly
this type has a well fitting collar which eliminates the problem of a vacuum leak. the tube is designed to be longer then the tank so it will lay on the bottom.

I would still go through he process Bob discussed; when you get to the pickup tube check, you may consider replacing it (get two while you're at it).

good luck
 
Patrick, this is John Oliver in Panama City a previous owner of you boat. I know when I had it I pulled and cleaned the tanks, I think I may have changed some of the fuel lines ,not sure I have a bad case of CRS .(I didn't change the pick up tubes) only ethanol free fuel when I had it. You may want to check the vents. I've had a problem with dirt dauber building a nest in them.
I have a switch valve on my 22 that I don't uses .I have twins and have one on each tank. If you need it let me know.
 
We have been chasing that Gremlin ever since we installed new tanks Replaced all hoses new filter every few months. Non ethanol always replaced fuel on /off switch Took off priming bulb
Replace pick up tubes
My engine runs fine for an hour or so then start sputtering like fuel starvation I just took off the navman fuel montering system Hopefully will be able to get home today about a 50 mile run out in the Gulf
 
We got home but engine sputtered. About an hour into cruise home She never stalled but it was bucking like a bronco then would smooth out ?? I will try to put in new pickup tubes and then see if my fuel pump is faltering after long cruise a few hours or so
She runs great for an hour or so with full tanks (25gallon ea) when each tank gets down to 15 gallons or so it starts sputtering ? Also when I put it on mercury computer no codes?
 
Yakmandu":xipnymsb said:
Just got back from a few days on the water. Everything ran well until I switched to the port fuel tank. As soon as I tried to accelerate, the engine bogged down. It would die if I didn’t back off. I went back to the starboard tank and all was well. So I know I have a problem with the pickup, fuel line, or fuel switch.

My question is should I replace all the fuel lines since the boat is 15 years old? I’m not sure how long the lines last. I would also replace the flow switch and bulb.

Is this warranted, or am I paranoid...
Click to expand...

How about Water or some sort of shineola in the one tank.
Been there!! :wink:
Good luck & replacing all the fuel hose is a good idea any way!!
 
Thanks for the ideas everyone.

I have always used non ethanol and fill up both tanks so I don’t think that’s the issue.

John, nice to know a previous owner. I promise to take great care of her!

So, it sounds like I’m going to replace the fuel lines, pickups, bulb, and switch. This will also be a good time to pull the tanks to inspect the area behind/under the tanks. But first, I’m going to make sure the tank is venting properly and the switch isn’t blocked.

Thanks again!
 
Jennykatz,

Sounds like a bad coil or bad coils which do that after heating up. But seems like engine diagnostic computer readout should tell you that.

Jay
 
Jim, I was thinking the same thing as Jay. I had a pencil coil go bad, and while I can't remember exactly what it was doing, your issue sounds familiar. (However, my coil went out completely. I don't think my Mercury Code Reader caught a code either.) Colby
 
Thataway,

Jennykatz reported "chasing that Gremlin" and I assumed "that Gremlin" was a sputtering engine at times (apparently after running awhile, hence the coils warmed up) and not a sputtering engine when running off the port tank all the time. Jennykatz can clarify that for us.

Jay
 
C-Green":1r5850db said:
Thataway,

Jennykatz reported "chasing that Gremlin" and I assumed "that Gremlin" was a sputtering engine at times (apparently after running awhile, hence the coils warmed up) and not a sputtering engine when running off the port tank all the time. Jennykatz can clarify that for us.

Jay
Click to expand...

Yes threads get highjacked. The original poster has a problem only running on the port tank.....It would be best if there is a different problem to start a separate thread--or at least quote what problem was being addressed.
 
Yes tue we will go out and try to get the same bucking we will hook up computer also flow meter see if we have fuel pressure in the injectors Thinking it through I think It could also be a coil problem so will check spark plugs also .really thought it was the low pressure pump but have not ruled out anything yet . I’m thinking also of putting aluminum pickup tubes instead of plastic I wouldn’t be surprised if it was a combination of both?
Stay tuned

I love my Merc but not used to problems Jim
 
We took the boat out and ran it for over three hours almost non stop from 4000 rpm to over 5000 rpm trying to replicate the same senerio Trying to make it buck or fuel starve The engine ran like a champ could not get engine to make the same as on Last weekend We had the engine on the computer but no codes and no problems

Thinking an electric problem with coils or ignition Still haven’t ruled out water in fuel or bad pickup tubes??
I will do a tuneup this Summer new plugs oil change lower unit change and check coils for bad resistance again Then pr ay to Cdory gods for no problems ha ha Jim
 
Any tips for removing the fuel pickup. I have removed the tanks for better access. I am afraid of damaging the tank with too much torque. It won’t budge. Tried some penetrating oil with no luck.
 
Also the code that did show up on my smart craft was the
Throttle position sensor it said it was non critical We ran the engine today for over an hour no problems and no new code on computer. Also the sputtering happened on both fuel tanks
We did readjust the throttle cable 1 1/2 turns to go into gear better I will be doing a tuneup and checking coils again next month and maybe redoing the fuel pickups ?
 
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