?
You prime the oil pump after EVERYTHING is installed and before you actually crank the motor.

Yes I understand that, but how early can I prime the oil pump. I want to make sure I can get pressure before I put everything back to together. Thanks for the quick reply though!

I would say do it asap, now.

I wouldn't prime it.

I'm getting mixed ideas here. Why wouldn't you prime it? That seems like really bad advice, unless you are saying I should wait until it is completely built. Has anybody primed a pump this early successfully?

Is your engine done? are you ready to start it?

Do you have the balance shafts eliminated? If so, that's why it isn't free falling on its own. Prime it whenever you want to, as long as you DO prime it. If the turbo isn't on the car when you prime it just make sure you crank it a few times with no spark/fuel so you get some oil flowing to the turbo. It's also a good ideal to pour oil into the center section prior to hooking up the oil feed line if it wasn't on the car when you primed the oil pump.

iugrad92turbo said:

Is your engine done? are you ready to start it?

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" I have not installed the turbo system or transfer case yet."

Why are you so eager to prime the oil pump so fast?
You can't prime it with the turbo lines not connected to the OFH or wherever your getting your oil from.

gieri002 said:

I'm getting mixed ideas here. Why wouldn't you prime it?

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Because it was put together with assembly lube. And by the time you put the front of the motor back together after priming it'll probably be a couple hours anyway. It's not like you're working on an old SBC.
Like already stated, dump some oil down the feed tube of the turbo and crank the motor over a few times without fuel. Then you should be good to go.

Well I just cranked it for about 4 minutes with an electric drill. Not one drop of oil came out. I don't understand, this is a brand new front case. Shouldn't it come pre-packed with lube? The oil line is connected to the oil filter housing. I'm very eager because I bought this car with no oil pressure and I am really hoping all the work/parts/time I put into it resolved the problem.

Nope, no lube is prepacked. Oil pickup is installed? Oil in oil pan?

Yup, the pickup is installed and the oil is at the "full" level. Maybe overfilling it would help?

Well I searched every "prime oil pump" thread on this forum for an effective way to prime the oil pump without taking off the front case, I didn't find anything useful. However, I did come up with my own way and it worked great!

If the engine sits a day or three before you fire it off, you will need to prime the engine again.

Gravity works, so the oil on the bearings/crank will fall off, causing a dry start condition.

So just before you fire it off, disable fuel/spark and spin the engine over untill you get oil pressure reading on your gauge.

Thank you, that is very good advice!

You should've seen oil come out through the rockers with the oil cap off. Takes about 2-3 minutes of using a drill on the pump before it comes out steadily. You can usually hear the lifters fill with oil too then. I've built 3 4g63's so far, every time I've always primed them like that while they were on the engine stand. They would go in the car 2-3 days later after priming. I never pulled fuses or disconnected anything else. Never had any issues. But if you have the timing belt on already and didn't prime it then pull the fuse and turn it over with the key. And the oil pumps do not come pre-packed so it may take a little longer to suck up oil than if it was already packed with lithium grease.