Seen 1 of our hire boats suck a 25ltr tank in to nearly half the size when they closed the vent. The motor just wouldn't run in the end, when we got there the primer hose was dead flat.
Cheers Ean
Printable View
Seen 1 of our hire boats suck a 25ltr tank in to nearly half the size when they closed the vent. The motor just wouldn't run in the end, when we got there the primer hose was dead flat.
Cheers Ean
I agree with Ean and Tombie. If you are up thos way you are welcome to borrow my emergency tank/jerry and give it a go on that. My F70 runs fine on it.
Other thing to look at it is some tanks have a one way valve incorporated into the pickup.
Especially if they have a setup of underfloor tank and top of tank pick up
The one way ball valve can stick close and cause you problems.
If this be the case, remove the one way valve and just install a standard fuel bulb right down at the tank... at least if the one way valve valve fails in them you just pump them till they prime and then they flow well.
S
if its got a right angle fitting on the tank (Im assuming its a built in tank) check that thats not become restricted.
there should also be a strainer fitted to the end of the pick up, makes sure thats not overly contaminated and (can be for both internal and removable tanks)
make sure some nufty hasnt done a mechanical fuel check (dip the tank with a rod) and crushed the pick up tube
Back home in Williams.
Will look at the bloody thing when I can find some love for it,dont even feel like washing it at the moment:(:(:(:(:(:(
OK,I have had an issue with it stopping since owning it,a simple prime sorted it,as an attempt to sort it out I have done the following.
All fuel hoses new(same size as factory),upgraded spin on fuel filter from non water trap to water trap type(no water in bowl),new breather hoses and vents fitted,new primer bulb,drained tank out before Albany trip to get rid of water found in carbies at last service.Filters replaced before Albany trip by boat mechanic,lift pump and carbies had an overhall(some water stain in 1 of the 3 carbys),new plugs and impeller done,oil change gearbox.They did test run the engine,but only in a tank(not ocean run).
I used 6 litres(according to the fuel flow meter) on the tuesday without issue,Got 12 litres in at the servo trickle filling.I had used 10 litres(fuel flow meter) when the issue reared its head.We did open the filler several times to check for vacuum,was OK.(Have since smelt petrol fumes venting on both sides of hull).
An interesting point,I have never trusted the fuel gauge,sometimes stays 3/4 full and it takes 10lts,have had it 3/4 full and it take 35lts to fill.
When I drained the tank,it stayed between 3/4 and full,now reading 1/2 full(couldnt have used 50lts of fuel).Im thinking there may be something in the tank.I always fill to full after a trip.
Plan is to lift the floor and remove the sender whilst still holding the current fuel(probably only used 15 to 20lts from full) and see whats in there.Next blow back to see if anything comes out of the lines.If the tank is dirty I will remove it to clean if need be.Will check the pickup and ensure its not blocked or damaged.
It has never been "dipped" or syphoned from the filler in my ownership,so I havent damaged the pick up.
Whilst Im about it I will fit a Lowrance sender to use the cockpit feature on the sounder.
Andrew
I do have one in the shed if it comes to needing one Ben,cheers.Quote:
Originally Posted by isuzurover
Andrew
Want a D2 to go with the boat Mick????Quote:
Originally Posted by Mick_Marsh
Andrew
Was unpacking/cleaning the boat today.
Went to rinse the motor,3 squeezes bulb went hard,started first crank.After a few minutes it sounded like it was running out of fuel,squeezed the bulb,empty,pumping it improved the idle to normal.
A google tells me these bulbs dont necesarily stay hard in use.
Now it dosent want to full prime(hard) boat still starts OK,runs to 2000rpm ok.
I have ordered a 12v electric fuel pump,idea being pump fuel from the tank into the engine fuel line to check for leaks/blockages,then to empty tank if need be.
Wont bother opening the floor/tank until this pump arrives.
Andrew
you can get senders with a pick up included..
it might be easier to fit one of them and blank off the existing fuel line.
no the bulbs dont stay hard sometimes they collapse a little (like a figure 8) but if they collapse completely then there is a restriction between the bulb and the fuel supply.
the bulbs are also known to get blockages on the front valve that causes this.. ok when you prime them but not ok when they are just letting fuel flow through them. this is easy to test, remove the bulb and setup a siphon hose and use the bulb to start it, if it blocks and closes up its the bulb.
if its not use the hose to start a siphon from the normal fuel pick up.. if it wont then the problem is in the line or the tank.
Andrew do a simple test, bypass your fuel filter, join the 2 hoses together that go into the filter housing.
Run the engine and see what happens.
Cheers Ean