Injector Cup Question - Ford Powerstroke Diesel Forum
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Old 07-08-2013, 07:10 PM Fanatic

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Injector Cup Question

Hey Guys,

Yesterday I finished the injector cups on my 2000 Powerstroke. I got everything buttoned up and let it sit for 12+ hours. I followed the RiffRaffDiesel how to and noticed today while doing more and more research about the first start, that I never purged the cylinders of Fuel and Oil. The RiffRaff instructions leave this part out and from what I read, this MUST be done.

So in order to prevent any serious damage I have decided to pull the valve covers back off and purge the cylinders. My question is, what is the best way to do this?

Should I pull the injectors and hand crank the motor or just the glow plugs. I am nervous about the glow plugs as I JUST bought this truck and I have no idea what condition they are in. I have read horror story after horror story of lost tips in the cylinder and I really don't want to go down that road.

Any advice would be great.

Is it a bad idea to try to hand crank the motor as is and see if it gets several full revolutions before opening it back up? What are some of the downfalls to hand cranking a sealed system without knowing if there is a large amount of oil in the cylinders?

Thanks in advance..
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Old 07-08-2013, 08:04 PM
Compression Ignition Addict

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removing the vc's dont take that long, same goes for the gp's. remove the gp's, and unplug the uvch, so nothing can "fire". Re-install vc's with a couple of bolts, and turn key over.
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Old 07-09-2013, 10:40 PM Fanatic

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So I pulled all the glow plugs and hand cranked the motor 2 or 3 full revolutions to clear the fluid. Afterward I cranked the motor over a few times and noticed that all the driver side cylinders do not spray any fluid but the back 2 on the passanger side are spraying some mist and fumes. It seems the furthest back on the passenger side is pushing the most.

Any idea what might be causing this. Is this normal for some cylinders? Anything i should check. The Injectors are fully seated and torqued to spec.

I have attached a video. You can watch in HD to get a good view.
7 3LCompression - YouTube
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