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Gas in oil lots of it Randy 2-8-16  
Had a small fire on a 1986 350 econoline and had minor electrical damage repaired the electrical and then found out why it cought fire on restart there was gas spewing from vapor hole on oil fill tube on further inspection found the engine block was so full of gas it was like opening the gas tank when I pulled the drain plug almost6 gallons of gad poured out and I am trying to find the reason this occurred can youj tell me
Re: gas in oil lots of it Bubba The Bus Tech 2-8-16  
1986 v8 E350 Van

May have a mechnical Fuel pump Or 2 electric pumps (1 per tank) or even 1 low pressure in the tank and 1 high pressure on the frame rail.

This is important because a Carborated Van with a Mechnical engine mounted pump will do this if the Diaphram seal in the pump fails just little. It will still provide the Carb with fuel but fills the crank case right quick. Requires replacement of fuel pump.

A Carburated engine with a Electric pump system will do this if the float sticks in the carb and the fuel pours out inside the carb from the bowl vent tube. Requires a carb rebuild.

Last possiblity: If this has Fuel injection, quite Rare in 86 on The E350, look for a stuck or faulty injector.

After the repair I strongly recomend removing all spark plugs and squirting oil into ech cylinder before turning the engine, crank the engine until it gets oil pressure, re-install spark plugs start, allow to run for 5 minutes and change oil again.

Good Luck
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