Author Topic: Bleeding the air from injectors PJ Petter  (Read 874 times)

snowman18

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Bleeding the air from injectors PJ Petter
« on: October 31, 2019, 10:02:58 PM »
Using the manual priming lever at the injection pump once the air has been successfully removed from the injector you should be able to hear the injector pop off.

If your hearing impaired use an engine stethoscope with the probe placed on the injector body.

This procedure will work on many of the Lister and Petter engines, once you hear the injector pop off cease priming as you'll flood the cylinder with raw fuel. Making it difficult to start the engine.

In some instances a wooden dowel placed to the ear will assist in locating the source of an errant sound.

« Last Edit: October 31, 2019, 10:11:52 PM by snowman18 »

snowman18

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Re: Bleeding the air from injectors PJ Petter
« Reply #1 on: November 01, 2019, 04:29:35 AM »
You can use the fuel injector pump while it's still attached to the engine to test your injectors for leakage and adjusting the pop off pressure.

The pop off is adjusted by either adding or removing shims.




snowman18

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Re: Bleeding the air from injectors PJ Petter
« Reply #2 on: November 01, 2019, 06:11:53 AM »
Petter PJ first run, sounds and looks like a bad injector.

https://youtu.be/ywIaLxRuUqQ

snowman18

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Re: Bleeding the air from injectors PJ Petter
« Reply #3 on: November 02, 2019, 05:30:33 AM »
Petter PJ first run, sounds and looks like a bad injector.

https://youtu.be/ywIaLxRuUqQ

Now that the valves have been adjusted I'll bet the PJ will sound a whole lot better, on inspection zero clearance.

I've set both the intake and exhaust valves at 0.010" cold.

Runs and sounds like a new engine.

https://youtu.be/GtYZFw7VmDM
« Last Edit: November 02, 2019, 06:06:37 PM by snowman18 »

snowman18

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Re: Bleeding the air from injectors PJ Petter
« Reply #4 on: November 03, 2019, 02:14:47 AM »
The oil pressure gauge was showing zero psi, the new gauge is showing 60 psi which I think is excessive anyone know the correct pressure for the PJ2 engine.

snowman18

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Re: Bleeding the air from injectors PJ Petter
« Reply #5 on: November 03, 2019, 05:53:16 PM »
The oil pressure gauge was showing zero psi, the new gauge is showing 60 psi which I think is excessive anyone know the correct pressure for the PJ2 engine.

Never mind, I found the information I needed.