Your engine is out. Are you going to do it?

The hex drive for the oil pump is floating. Also, how are you going to facilitate passing oil through the partition between the oil pump drive and the interior of the IMS tube?

This has already been done, and you will find other complications as you progress.

On the later model IMS bearing, the larger sized bearing, is the bolt pressed into the inner race or is it a slip fit?

Buy one and find out! This stuff isn't supposed to be easy, or cheap.

My local Porsche dealer parts department was very helpful when I called about the bolt. He said it is pressed into the bearing and sold under one part number.

So I am wondering if Porsche did this to help conduct heat away from the inner race of the bearing.

James, I think I am going to pass on this method to get oil. My concerns, other than the extra work of getting to, and modifying the pump and shaft, are that this oil will be hot and dirty. I am not sure using the IMS as a conduit is reliable during many driving conditions (long uphill or downhill runs, acceleration, braking, depending on a mid engine or rear). But I thank you for your suggestion.
I am currently thinking there are many improvements that could be implemented with a new design bolt, one of them is getting oil for the IOF through a larger bolt with a small hole drilled through the center.

I'm thinking this is round 2 if the grease continues to leave the bearing with the modifications I've already made to the IMS currently in my engine. I plan to replace the clutch and flywheel in about 15k miles and I already have a spanking new Nachi greased sealed bearing in place. I'll go with the modified key concept drawn below if the grease has left the bearing, and to answer Jake's question, a hole at the bottom of the hex drive hole in the IMS shaft will communicate oil pressure between the oil pump and the inside of the IMS tube. I'll top that off with an open (silicon) ceramic bearing open at both sides. and Jake, can you shoot me the patent number on this? I'd like to see what's been done so far in this area. The size of the hole is an interesting point, it would be nice to fill the IMS tube with a mist, not just dump oil in there. And Walter, why do you say the oil on the high pressure side of the pump is dirty?

Sorry, I didn't meant for it to sound so bad. What I mean is it is unfiltered and has not been through the cooler yet. I think it comes straight from the sump into the pump.

I don't have a handle on the overall oil flow path yet, even if it was cooled before the trip into the IMS, it wont be cooled when it hits the bearing. More learning.

http://986forum.com/forums/uploads01...1390524475.jpg

You might be able to place a filter inside the tube. Maybe a series of fine mesh screen. They could also serve as an anti-slosh device.

You need an engine in front of you. The oil path and the configuration posted are two different things.

Someone else has used this configuration to develop a component and made a critical mistake, actually more than one.

Too true. What is #6 om the schematic? that seems to be the place where the proposed oil stealing occurs, but the schematic has no detail in that area, and why should it? oil is not supposed to pass that barrier.

I'll point out the obvious that splash oil comes out of the pan, so for anyone who is an open bearing splash oil advocate there you are, and, I'm in your camp.

OK... When will the manuals be available? I hope there will be pictures and drawings in the manuals.

Thats up to the publisher.

Its a step by step assembly manual.

Really looking forward to getting a copy when it's available...

Is there any chance of drilling a 1/16" hole in the IM shaft from the sump?

http://986forum.com/forums/uploads01...1391903821.jpg

Not sure what you mean. I would not drill the IMS tube between the end fittings from a structural consideration standpoint. That's not to say it would certainly lead to a failure over time, but it's not a slam dunk it won't start a crack and fail the tube over time.

James, if I'm not mistaken, there is a fixt that sells a oil feed using something similar to what you describe.

Jake, tell us why wouldn't this work?

Much like the factory cam timing procedure, this configuration of the oil system is missing some critical points.