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Air bubbles in volvo penta 31 injector pipes

G

Garry Lavin

Guest
The Bosch injector pump on my

The Bosch injector pump on my Volvo Penta 31 is pushing fuel to the injectors - but the fuel has air bubbles. Have tried gravity feeding fuel to avoid possible leaks in supply before pump - but still no good.
I can only think that air is getting in through faulty seals on pump drive shaft/casing.
Any experiences out there?
 
" prime by manually using a ha

" prime by manually using a hand pump to remove air from the system, open the injector pipes, continue to pump and as you pump you will observe air bubbles gushing out from the injector pipes then after a while there will be free flow of fuel, start the engine and open all the fuel lines run the engine for a while then stop and couple all connections and start again. "
 
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