Fuel delivery problems on 1999 Scarab 33AVS
#1
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Location: koksijde Belgium Europe
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Fuel delivery problems on 1999 Scarab 33AVS
I have 2 x 502MPI's , when I fill the fuel tank full , both engines work perfect , when the tank gets half , then in steep turns then posrtside engine's RPM drops and power loss. Its like the engine gets no feul. When the tank gets ti 1/4 , then the engine sarts cutting out. And I can't start this engine any more ! , the other engine works perfect all the time.
This morning the engine wouldn't start , then I checked the fuel pressure valve (under the intake plenium) . Only compresed air came out of the valve . Then we turned on the ignition on/off a few times untill the fuel came out , and the engine starts correct. I fill up the fuel tank and again everything perfect , until the tank gets half way.........
Now are there two fuel pick ups in the fuel tank ? Could it be that one fuel pick up line is broken , cracked ????
Any one had this problem ?????
Thanks for leting me know
Douglas
Belgium
This morning the engine wouldn't start , then I checked the fuel pressure valve (under the intake plenium) . Only compresed air came out of the valve . Then we turned on the ignition on/off a few times untill the fuel came out , and the engine starts correct. I fill up the fuel tank and again everything perfect , until the tank gets half way.........
Now are there two fuel pick ups in the fuel tank ? Could it be that one fuel pick up line is broken , cracked ????
Any one had this problem ?????
Thanks for leting me know
Douglas
Belgium
#2
Charter Member #1171
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follow the lines back to the tank to see if one pickup or two,,,, bu t sounds like one and a broken pickup
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I checked and on the flore there are two openings , one is the gastank inlet and vent tube , on the other one there is nothing ?
Could it be that the fuel is not picked up from the top ???
Wierd
Could it be that the fuel is not picked up from the top ???
Wierd
#6
The fuel is picked up from the top of the tank......but it should be at the rear of the tank/boat near the engines/engine compartment. The fill/vent are usually at the top/front of the tank because thats usually the highest point when the boat is in the water and allows you to fill it to the max capacity.
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Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
-Wally
Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
#8
Thats kinda strange....does it have a removable floor? (the center section was one big panel that you could take off on the older boats)
I know other boats have a removeable panel inside the engine compartment to get at the fuel line fittings.....just follow them from the engine and see where they end up at...
I know other boats have a removeable panel inside the engine compartment to get at the fuel line fittings.....just follow them from the engine and see where they end up at...
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-Wally
Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
-Wally
Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
#9
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#10
On most all Scarabs the access is there are three access points. One under the bench seat and two under the carpet. They are round panels that you can use a screw driver to pop out. Never seen a Wellcraft Scarab that did not have these panels.