This is the plan I have for later this afternoon, as a way to clean my fuel tank.
The fuel tank has not been cleaned for a while. Hence there is this sludge or slime that sit on the bottom. It sometime break loose and would enter the fuel line as a mass of thin sludge that is combined into a big lump.
This would sit on top of my CAV filter, and block the filter top surface area. Reducing the filter flow capacity by a large margin. Which will in turn stall the engine.
After happening twice, where I had to replace the filter element before the engine would go again, I think it is time for me to do something about it.
The plan is to use the oil changing vacuum pump and its inlet hose to suck the bottom of the tank. This hopefully will get rid of all the sludge, without cleaning the tank properly. As the access hole is too small to do anything meaningful. The opening is only about 2" in diamter. It is where the VDO fuel level sender is bolted onto the tank.
I will let you know the result in the future.