calling engine rebuilders, looking for your input on these bearings, 2.2T 6-cyl Options

[Optimusglen]

First, read this carefully. I'm not going to re-use the bearings. Never planned on it. I am just looking for input on condition and wear patterns.

This past weekend I was able to split the case on a 2.2T engine I am rebuilding for my 914. So far the tear down has been great, nothing broken, no chunks of metal or debris, everything came apart without much fuss, and the case has time-serts.

Case is apart now, most of the bearings looks really good, a few have some wear. I've had a few engines apart but not many, and those were special circumstances so I don't have a lot of personal experience reading wear on bearings.

One case half
(IMG:http://www.914world.com/bbs2/uploads_offsite/c1.staticflickr.com-19709-1500297820.1.jpg)

From one end to the other, close up's on each of them

(IMG:http://www.914world.com/bbs2/uploads_offsite/c1.staticflickr.com-19709-1500297820.2.jpg)
This one seems to have much more wear than all of the others for the crank.

(IMG:http://www.914world.com/bbs2/uploads_offsite/c1.staticflickr.com-19709-1500297820.3.jpg)
The dark spot here is oil.

(IMG:http://www.914world.com/bbs2/uploads_offsite/c1.staticflickr.com-19709-1500297821.4.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/c1.staticflickr.com-19709-1500297821.5.jpg)
Wear on the far edge of this one.

(IMG:http://www.914world.com/bbs2/uploads_offsite/c1.staticflickr.com-19709-1500297821.6.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/c1.staticflickr.com-19709-1500297821.7.jpg)

For the intermediate shaft bearings:

(IMG:http://www.914world.com/bbs2/uploads_offsite/c1.staticflickr.com-19709-1500297821.8.jpg)
More wear here too.

(IMG:http://www.914world.com/bbs2/uploads_offsite/c1.staticflickr.com-19709-1500297821.9.jpg)

Any thoughts or input from you guys and gals? The engine was a core, unknown history. Buying it was a roll of the dice.

[gereed75]

i recently rebuilt the 2.4 T motor that was in my six. the old bearings looked pretty good, about like yours with the pump shaft showing the most wear. Sent the cases out for case savers and oil bypass mod. Thought I would take a chance and reassemble with new bearings. On final torque up of the halves, the crank would not turn. Back apart, off to Ollies who cleaned up the part line, re-sized the main bearing journals and reset the deck heights and provided barrel shims to set the deck back to factory zero.

Moral of the story - you are taking a chance on reassembly that the main journals are still round. They tend to ovalize in use. I had measured them before going to Ollies and they were about .004" - .006" out of round. Enough to bind the crank on re-assembly.

I also suggest that you have plenty of inserts handy (6 and 8mm) when you do the reassembly. The magnesium gets like dried cheese and if you are snugging up a case stud and it pulls and you have no way of fixing it the whole project goes on hold. Ones you think are good now may not be when you torque them on reassembly.

Look very critically at the studs on the tranny mount and the front engine mount. These pull too.

Not sure if that answered your question, just my experience after building several of these.