Gerry, this will work.You need to place a pressure guage on the fuel feed line and plug all other lines then apply air to one of the vent lines.If the fuel feed is leaking it will drop in pressure(you possibly could have another return or the other vent line leaking but thats the risk...)at least this will confirm a leak or no leak in the tank thereby avoiding a costly tank replacement when not ness. I find it hard to swallow that your feed line could be fractured as this is a one piece line to the pickup,but stranger things have happened.If you remove your tank and sending unit, you can see and touch the pickup screen and tube through the top opening, unfortunately you cannot plug the pickup end w/o cutting an access to the tank or bending the tube up to the top.Then again...if there is no pressure loss... Are you sure the return line isnt kinked or clogged/collapsed? This would cause a pump noise due to a load on the pump....although pressure would increase on the regulator side(have you checked regulated pressure at the tap point?Let me know. Ed Berroth 84 Westy Wolf 87 Stinkcrow
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