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Volvo Penta MD2020 runs normally for 9 minutes then stops

gregthompson

New member
Have bypassed fuel filters and

Have bypassed fuel filters and connected fuel line direct to injector pump. Have tested fuel line in a separate fuel tank.

Motor starts and runs normally for 9 minutes then surges and stops.

Is this an injector pump problem or injector problem .... or something else?
 
Have now had injectors tested

Have now had injectors tested and rebuilt - no change to motor symptoms. Stops after 9 minutes. Still lot of air in return line.
 
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