To this point if the 9A1 typically scores from the bottom why the f**k would they first scope the top? Am I missing something.. Please correct if I’m wrong but I’d maybe find another shop. Good luck with this.

 

This whole thing started when I found about $66k of lost money that my grandmother left in a bank when she died in the mid 90s. 22 years later - it shows up on the Texas website. I gave $10k to charities my grandmother supported while she was alive and split the rest 3 ways with my siblings. So I had $17k of 'free money'. I told my wife - I want a 912 like I used to have. Simple, fun, easy to work on. I had no idea the long nose market went bat**** insane. I'm like I can't afford one of those cars and no way is a 912 worth $80,000. So I looked at 986s - almost bought until I learned about IMS and I wasn't a fan of the 1999 Ford Taurus interior.. on to early 997s with a budget that was now doubled. Bore score, IMS'ish.... not for me - 997.2s and the budget almost doubled again. Had to be an S, had to be full leather... and no driveway jobs so had to have the Fidelity warranty. Once I was all in - I made the stupid mistake of "kept looking" and then I see the car I have now... a year of chasing her and the budget nearly doubled again. But that's it - I'm done.

For how I drive the car, I'd be equally happy in the 912, the 997.2 C4S cab than the car I have. I'd still like to chase down that 912 'outlaw' I know every bolt on it. The car was nearly completely apart at one point - just a empty roller. I took it apart and put it all back together. Another place and time.

30 years ago, I had all the time in the world. We all did.

 

My understanding is that scoring is often visible from the top with the piston at BDC (and this is a much less labor-intensive process), while if nothing is found there, then to complete a thorough inspection the bores are examined from below.

 

Scoring starts at the bottom of the cylinder and progresses to the top. Once you see it at the top it has been going on for a long time.

 

Well, you've come full circle. From a 912 to a Turbo S. Well done. I think most Porsche types know the 912 was a four cylinder car but how many know that the early 1970's 911T could be had with a four speed manual. I say "could be had" since I think a five speed was available too. It's been so long I forgot. Mine was a four speed which may have been the only option on the 1970 cars. A friend of mine had a 1970 or maybe it was a 1971 911S Targa which was definitely a 5 speed. Drove that car a lot which led me to the 911T I bought. Didn't have as much $$ as he did.....

 

Yes, 5 speed was an option for the T in 1970, as were the, right door mirror, the full gauge cluster and the front & rear anti-sway bars. Most items from the S cars were available as options for the T, and you could end up with an S without the hotter motor if you checked all the right boxes.

 

They scope from the top because it is very easy to do, just pull the plugs. Scoping from the bottom means you drain all the oil and drop the pan and then there is a bunch of stuff in the way to getting to the cylinders. Unless you really know what you are doing it would take forever to see all 6 bores.

 

RacerWannabe, any news from the shop on the scoping from the bottom? Was today the deadline?

We're on pins and needles here with fingers crossed.

 

Thanks all. Bore scope was clean, above and below. Shop mechanic said that disassembly was extensive, but was able to get clear, circumferential look at all cylinder bores and no evidence for scoring at all. Essentially said that it's not a scored bore, but to determine the cause of the noise, which is acknowledged to be abnormal, would require a complete tear down.

 

Sorry they didn't find anything. As I've said before nobody feels good about this.

 

Oof, just catching up on this thread - really sorry you're having to experience this. Please continue to keep us posted.

 

Great info. Thx. I didn't have the money for a new 911 in the 70's so didn't know they had the current endless options list back then. Leads me to believe they always had it except maybe for the 356.

 

Did they take pictures? I’ve seen pictures where the mechanic said it was fine and when viewed here online told a different story.

 

Great point. Yes pics taken, but I haven’t yet seen them. Supposed to be emailed. Will have Monday. Picked up the car at closing yesterday

 

If it's not a scored bore it could be rod knock. I had a turbo dodge in the bad old 80's that spun a rod bearing and sounded similar. Super-knock maybe? It could also be something much less of an issue like a valve lifter. Since the bottom is torn down, the rod bearings can be inspected without much ado. A bad lifter might be harder to deal with due to the clearances down there. Tough spot. Hard to give the car back when you have been looking for so long, but at what point do you stop spending money to find out what?