vern1

Just diagnosed this morning. Had been burning a lot more oil and the drivers tail pipe has turned black which I noticed when I got back from the Hershey meet. Just less than 80k kms (50k miles). Daily driver in Toronto

Now the fun stiff starts like a rebuilt engine. Does anyone know if they replace the block with one that eliminates the potential for this issue ie different cylinder lining? Or do I pay for a rebuild and then run the risk of this happening in the future?

Thanks

jsalah

Awwww man. Sorry to hear, Rick. 🙁

mike9186

Sorry to hear that. Please keep us posted as to what you decide to do. Bore scoring seems like it is replacing IMS as the major issue with .1 motors.

semicycler

Bummer, and another northern climate bore scored engine too.

You have three options - rebuild, replace with a used engine from a dismantler, or sell the car as-is called a roller.

If you go the rebuild route reach out to Jake Raby at flat6innovations.com for options. He's a sponsor here and posts from time to time as well. They have Nikasil plated aluminum sleeves that replace your cylinders. So basically you reuse your block and have the inserts machined into some or all of the cylinders. You end up with a rebuilt and more reliable engine. Jake is a highly regarded engine rebuilder and it comes at a price. You can certainly go local as well just be sure your mechanic has rebuilt water cooled Porsche engines before. The better rebuilders will provide a warranty too.

gopirates

Sorry to hear that. How common is scoring on .2 cars?

hockenheimr

That sucks! I believe us Canadians are at higher risk. How much oil were you burning? were you driving it in the winter?

From what I've seen you can just change the cylinders, but while you are there you might want to do rod bolts and a few other things.

Some guys take this opportunity to bring it up to 4.0L, you should look at what Jake Raby is doing.

I know Andrew at WeTune has a good and easy program with a shop in California to rebuild 997 engines. If you don't have a builder in mind you should take to him.

Good luck and keep us in the loop

vern1

Appreciate the condolences - its a drag for sure

I know of Flat6 but I have heard its a year wait and with the weak C$ it will be out of range for me. There are a bunch of experienced builders here and I will be talking with some of them this week

I am curious about the .2 engine as well. I do not believe it is as prevalent for sure but I don't know if that's just because they have not been around as long as the .1's obviously

Thanks

vern1

I went from about 1 liter every 6-7000 kms to about 1 every 1000 and it happened quite quickly

Raby and California don't make much sense for me here in Toronto paying in C$

Thanks

vern1

And yes winter driven over the past 4 yrs

EMC2

Vern,
Really very sorry to hear that. It is terrible news.
I wish you the best of luck in figuring out a solution that works for you.

I know you said the consumption rate changed quite quickly, but out of interest did you do oil analyses after your oil changes?
Curious to know if there were other indicators in hindsight?

CamsPorsche

I'd be interested to know if someone's done a Poll similar to that of the IMS issue to see how many of these Bore Scoring issues have occurred?

vern1

Never have done an oil analysis. I think the consumption is the biggest clue. I change my oil every 10k kms and the consumption was always about the same - until recently that is .....

dgjks6

I read somewhere about RND engines. Basically it's a rebuilt engine with all stock parts except the liners and IMS. They are ordered by your mechanic and installed. Not sure of cost. But they address the two main issues with the engine and no wait

hockenheimr

What is the primary reason for scoring? Ie. are the 997 cylinders weaker than older models. I've seen multiple very high mileage 993/964 cylinders and none of them every had the slightest bit of scoring.

hockenheimr

Check this out: