Wallas stove

U

UncleRichie

New member
Have trouble with my wallas stove will not fire up ,I did not start it for several months the fuel pump runs but never seems to pick up any fuel . Has anyone worked on the fuel pump it is easy to get to but I don't no if it is rebuildable or a non serviceable part anyone done this ?
Richard
 
Check to be sure that all connections are tight. This is like a little selenoid fuel pump. Get a small bubble of air in the intake line, and see if it moves. Check all of the connections--esepcially the compression connection at the input of the pump.
 
Have checked fittings it is not pumping fuel at all though maybe a check valve stuck though maybe I could rebuild it . I have not pulled it out yet though I would ask here if anyone else has done a rebuild on one or if it is possible.
Richard
 
I've been told by Scan Marine that the pump can't be serviced, and have proven that once myself. Call Scan and order a used one from them. Install fairly soon, and if there are any problems, they'll swap for another. Otherwise, you'll be good to go.
 
Prime it. Loosen the nut on the fuel line closest to the burner, pinch the vent line on the tank, turn the system on and compress the tank(assuming it's the plastic 1 gallon type). You should see the line going to the pump fill with fuel, once it gets to the pump, the pump will normally begin pushing it up to the burner. Have a rag to catch the fuel coming out of the line. Once the line is clear of air bubbles tighten the nut you loosened. Shut the system down and perform a restart. Reset the fuse if you've had more than one failed attempted start. Hope this helps(it worked for me) and good luck!

John
Scallywag
 
I had to replace the fuel pump this spring while on cruise in Alaska. The pump was still working, but leaking, which Scan Marine said was extremely unusual. It was very easy to replace, though the cost at $252 very high & it's not rebuildable. In 14 seasons of Wallas use, We've had more then our share of Wallas problems, but never an issue with priming, even after sending off for service or replacing with a new stove or after pump replacement with a new pump. If the fuel line connections are all tight & the pump runs with good fuel it should flow to the burner. It can take a couple start up tries for the fuel to reach the burner if all lines & the pump are empty at first try & what John suggest could certainly speed up the process.

Jay
 
My advice, make it a boat anchor. There are only two kinds of Wallas owners, those who have had trouble and those who are going to, and it will probably be when you need it most, like in
Alaska.

Get yourself a single burner butane stove for cooking and a
Webasto diesel furnace for heat and be DONE with the bloody Wallas!
 
I would agree every with Pat that every man made thing will break. However, I wouldn't write off a stove that just needs a pump. Mine is still going strong after more than a decade of boating and it hasn't even been serviced. Yes, I'm sure it will go out soon.....saying that for 5 years. I also agree you should have a back up plan for when it does - I love my Champ Chef 2 Everest for cooking and the BBQ way more for cooking anyway.

I think priming it is a great suggestion - as is checking all fittings. I can't imagine it just went out by just sitting. I would also make sure you are getting battery voltage to the stove, but it sounds like you are. I've had all strange problems with mine with low voltage from pot pullers or the windlass - at least do yourself a favor and rule it out.
 
First problem that I see , other then you have a wallas, is that it sat for months. fuel goes bad sitting in a line. I had one that that the fuel turned to jelly. Ran regular gas thru the line and the into the pump. It finally cleared up and started to pump again.
 
It certainly may be a bad pump. But if you suspect fuel gelling is the cause of the problem, try warming the pump and the fuel line to the burner with a hair dryer set on low (NOT a heat gun), and then run it while it's still warm. That should re-liquefy any gelled fuel and allow it to flow again. Also, verify that the pickup tube and filter isn't clogged.
 
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