spessx

So I just bought a 2005 911 C2S with 98,000 miles on it. As near as I can tell, the engine serial number indicates that it has the smaller, serviceable bearing (Engine Serial Number is 119770168503748). I didn't get a service history on the car and I can only assume that it hasn't been replaced yet. At 98k miles, I figure I'll be in for a rebuild sometime soon but in the meantime, I plan to make this engine last as long as possible (DT40 Oil, 160 degree thermostat, frequent oil changes, etc). What's the best simple bearing (not oiled IMS solution) choice? LN? EPS?

Thanks in advance.

Petza914

The IMS Solution. Period

Bruce In Philly

2009 C2S 191K

Why no "oiled" solution? The fundamental issue with this engine design is this bearing is not oil fed... as was since the 1960s.

Peace
Bruce in Philly (now Atlanta)

Petza914

The IMS Solution is a pressure fed bearing but without and *****, pins, or rollers

https://imssolution.com/

spessx

Hi Bruce

Because the IMS Solution is $2k just for the kit, plus the engine case has to be machined for installation. There’s not a local shop that I trust to do the work. My engine currently has 97k on it and I’m guessing it will need a rebuild sooner rather than later. It seens to me to make sense to add an oil fed solution when I do the full rebuild and switch to nikasil cylinders.

Petza914

Unless you're slitting the case for a rebuild and your engine has the larger ims bearing, you don't replace it. NEVER mill the case to replace a large IMS bearing

spessx

My car is a 2005 with the smaller serviceable bearing. It needs to be replaced.

Petza914

I don't think it requires.any machining to do that with the IMS Solution.

spessx

It does. A 20mm slot needs to be cut into the bottom of the engine case where the oil ling goes in. I’m assuming that also leaves the oil line exposed out of the bottom of the case.

4Driver4

I suppose this could technically be called "machining" but this is super minor. Not understanding the objection...is it the exposed oil line? That really isn't a big deal considering all the other vulnerable stuff down there.

spessx

Maybe I'm just throwing out objections then. My concern is that 1. There's not really a shop in Austin that I trust to do it (maybe I need to call around) or an LNE approved shop. 2. The motor is probably near the end of its service life and would be going to Slakker/Hartech for rebuild which would include a different oiled IMS solution.

rsinghal3

in my opinion - unless you have tell - tale signs something is wrong like smoking/black tail pipes/engine noises - there is no reason I would assume 98k on the engine is end of its service life. just my 2 cents

spessx

Thanks for all of the input. I’ve decided to go with the oil fed IMS Solution. While I’m in there I’ll be doing a new clutch and RMS. I’ve got the work scheduled for early August.

jonan

that's only to make room between the trans bellhousing and the oil line...you're not negatively affecting the motor in any way...

jonan

i mean, i'm in ATX so if you want to see what the oil line looks like i can throw my car on the lift and show you why the groove is cut on the motor..i have the full IMS solution intstalled on my 4L FSI motor...