workhurts

They had rod bearing issues again? No lessons learned from the S54 I guess.

yelcab

$30k is not low price enough for an eventual replacement engine.

achtung911

his thought exactly

Ericson38

Engine replacement is about 27K, so car would be worth ~13K as is. These bore scored 997.1 cars have significantly reduced in market value.

Better to buy a higher mileage 997.2 that was cared for, in the 45K range, than a 30K 997.1 with a scored cylinder.

At 30K (purchase price) plus 27K (engine work), you are at 57K + range, and I don't think you can get 57K for a 997.1 with a rebuilt engine, unless GTS possibly.

If scored 997.1 bought at 13K, then with engine work at 27K (shipping or transport not included), you are at 40K, so a bit cheaper than 997.2 (high mileage) but should have a good 75K in front of it to enjoy.

sandwedge

+1. Not that it matters now that a BMW has been bought but I've seen a lot of inquiries like this where it's about a 997 as if they're all the same. For starters, big difference between 2005-2008 997's and 2009-2012 997's. Sure wish at least the model year of the car would be included where much more precise feedback could be provided.

achtung911

this makes sense, and has been a good learning experience for me. I am a 993 guy and had no clue. From my limited research bore scoring still happens in the 997.2, is this not true? He still wants a Porsche, but I think much more research will need to go into it, and he will need to find one that has been bullet proofed.

silver_tt

Can still happen on the 997.2 9A1, but is less common

sandwedge

For what it's worth, the consensus around here seems to be that the 997.2 is less prone to scoring than 997.1's. Supposedly due to more robust cylinder walls in the .2 cars. There's also been discussions related to where the car has spent most of its life. Some suggestions that cars that have lived mostly in cold climate in the northern states are at greater risk for scoring than cars that have lived mostly in warm climate in the southern states.

I haven't seen any hard and fast statistics supporting this other than what's been said about it on this forum.

silver_tt

If it is to be bullet proof it will have to be a Mezger (Nikasil plated cylinders) or one of the newer engines with SUMEbore (plasma spray technology).

achtung911

finding one that has been sleeved isn’t bullet proofed?

silver_tt

Depends on what the block was sleeved with and who did it. Aside from cylinders, Mezger and the 9A1 and later don't have IMS failures. So sleeving a M9x block alone will not make it bulletproof.

spessx

The 2006 and later IMS bearings have a very low failure rate. If a person was still concerned they could always add the LNE IMS solution to the rebuild. I’ve had the IMS Solution added to my 2005. The only issue, and I’ve heard this from others, is that the car leaks oil from the line that feeds oil to the bearing. I’m taking mine back to the installer to see if they can fix it.

Petza914

I have a similar oil line feeding the bearing on my supercharger. Should be an easy fix for you with a couple of bonded sealing washers.

Using the IMS Aolution during a rebuild is the best choice.

spessx

If I ever have to get mine rebuilt I'll definitely retain the oil-fed bearing.

Graufuchs

Seeing how often the topic of bore-scoring comes up on this forum, I am "surprised" we don't see a large number of 997.1 rollers.

Something to consider...