Air Lock in injector pump?

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Rodeo Joe

Well-Known Member
Posts
1,578
Location
Uk
Is it possible to get an air lock in the IP?
I have no fuel going to any injectors, but plenty getting to the pump.
New lift pump so had pipes off IP to put new pipes on.
Is the pump shot to bits?
 
Got no fuel at all though getting to injectors is that common, I've never come across it before.
 
2.5 N/A in Series 3 Lacks Power
Have a look at this thread in the series forum, I have just been through the same thing but it does sound like you need to check the lift pump, loosen the inlet to the injection pump or filter and turn it over, fuel should pretty much spray out if pump is good.
 
Mine runs on idle but won't rev. Have bleed it but almost no information in the manual about fault finding. When bleed mine didn't get much pressure. Any idea's.?
If you remove the banjo at the injector you should get a squirt, but bear in mind that it is only at the injector pintle that the volume of fuel moved through the pump and pipes is pushed through a very small opening going into the cylinder, which gives it the extra oomph!
Imagine an open-ended 1/2" hose pipe with wtar pressure delivery at around 30psi, the 'range' will be between 5 and 10 ft. However, if you put a 1/4" nozzle on the end, the 'range' suddenly becomes 40 to 50 ft. That's basically it in a nutshell.
When bleeding, slacken off all the injector banjo joints, and with someone else turning the engine over, nip them up in the order 1-3-4-2, and you should get her starting to fire up between nipping 3 and 4, and if you are very lucky, she will try after the first nip on No.1
Straight forward from there.
 
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