Is this bad?
 

Gee, I guess this doesn't look too promising. :rolleyes:
The guy said it ran but was knocking. Yeah, I guess. I've always been too gullible.

http://986forum.com/forums/uploads02...1548806972.jpg

knock knock knocking on heaven's door.

I think i found your problem right thar

I hope you paid an extremely low price for that engine.

New heads, pistons, all good

Broken piston and D chunked cylinder? I am sorry for your loss. Is the crank shot?

Actually, the heads look pretty good. No signs of impact.

If the 3.6 crank is clean you may want to consider using it along with the Nickies and end with a very sweet engine.. :)

...just before it went BANG!

What a downer.

How about this, use the good crankcase half from your 3.2 and the good half from the 3.6 and build a 3.4? ... slightly unbalance. :confused:

Hit it with the hone and call it good. ;)

Oh, that’s a real ouchy bro! Amazing the carnage created when engines go...

This is as far as I’ve got so far. Bank 2. I’ll open the other bank and keep looking but I doubt that the core is recyclable.

man, that is too bad

I would have thought the "knocking" mentioned by the seller was due to the IMSB. After you get it all apart talk to Charles Navarro. The cylinder in your picture still looks like something that could be repaired with Nickies. When I was exploring rebuild options, Charles told me that if LN/RND rebuilt my engine, they could source a good used crank that had been magnafluxed and inspected for about $2,000 if I needed it. In the end I had my local shop rebuild my engine, as they had torn it down to see what damage there was.

math gets bad at that point. assuming the crank is bad (i'd say 95% chance it is ...) then $ look like:

$1500 Cdn core
$5000 Usd Nickies = $7000 Cdn (exchange rate is .72 right now)
$2000 Usd crank = $3000 Cdn
$1000 Cdn IMS and associated parts
extra cost to repair cylinder?
all the bearings, gaskets, chain ramp and pads, chains, etc.?
heads thoroughly cleaned?
shipping of the block to/from usa from canada?

$15k easy. and that's not valuing your labour. you can buy a running 3.6L X51 for that. consider selling the heads to try and recover what you paid for the core and go back to square one.

No, your costs are way off the chart.
OP, shop around

exchange rate here: xe.com but paypal and credit card much less

op posted the cost of his core at $1500 cdn already.

nickies are $5k usd here: https://lnengineering.com/products/watercooled-cylinders-pistons/36-911-nickies-inc-96mm-fsr-je-piston-set-inc-rings-pins-clips.html

$2k usd for crank was from previous post.

you can gamble on ims bearing (note the results in this thread if you lose that bet) but vendor here has bearings averaging around $750 usd, not to mention tools and other bits that will have to be replaced.

not off on my costs whatsoever. feel free to back up your statement and prove me wrong. not sure you can however, given that op posted a pic of a cracked cylinder and you advised in post #5 to replace the heads ...

Steel sleeves and closed deck conversion maybe.

Question, what makes you think the crankshaft is "95% toast" ? Cranks are incredibly durable, and built and balanced for stress.
Step one would be to disassemble and analyze the parts before making any $ conclusion.
If I was to wager, the crank is fine, the piston is gone and connecting rod is probably cracked.
OP, if you really are convinced its a 15k mess, I will buy it from you for 5k and fix it myself and keep it.
cracked cylinder ? where

Youre going to pay $5k for that engine!!! Dude, please PM me your contact info. I have a bunch of stuff I want to sell you!

with new piston, connecting rod, bearings and IMS parts, yes

looks like a crack at the bottom of the cylinder? perhaps just more broken piston? regardless, need for new sleeves and to deal w big chunks of metal flying around the bottom end. my price was premised on bad crank as stated in the post. i was also talking Cdn $; presume you understand that, although called 'dollars', they are not the same as american $. yes, you may be able to 'shop around' for better pricing, but should avoid confusing shopping around with doing things half-arsed, such as only sleeving the damaged cylinder, filing the burrs off the crank and slapping it back in, etc.

$5k is a good price, newart should take it quick.

Fair call
It is always easy just to assume everything is broken and spend way more than necessary.
That was my only point.
Break it down and analyze parts individually.
I think all of us would really love to see what's inside

That right there.....
 

....is what NASA refers to as "Non-Intact Recovery."

She dun blown up real good.

:eek:

You know, I was actually thinking about the shuttle and the incredible post-accident investigation just earlier as I was posting on this.
Crazy

Yes, but here's the dark side of the moon:
Bank 1
http://986forum.com/forums/uploads02...1548891951.jpg

Just pull out all that broken stuff and bolt it back together as a 3.0L 5 cylinder. :D

Hahaha..... did that once with a datsun pickup. 3- cylinders for months. Wouldn't climb the hill to my house, so I had to come at it from the other direction. Haha
Necessity is the mother of invention.

Sent from my SM-G930T using Tapatalk

Yup, 1/6 power loss, or 16.6%. In my case, with 268hp, i would drop 44hp,
The bigger issue would be balance, and the car would vibrate apart methinks given its a flat 6.
Good things to ponder tho

Check engine light would probably be on with a million codes running on 5 cylinders, ha ha!

Is it time for an update on the Youtube channel?
The PORSCHE BOXSTER as seen by NewArt

I know this is not a happy moment, but a video tour of the engine carnage would be very informative to those of us who follow.

Brighter days ahead. :cheers:

Yes, I am documenting the 996 teardown. I will post it on my YouTube channel when I have split the case. :eek:

So, here's the update. Structure looks okay. Sleeves are a bit wanting. Better than I thought. Crank looks fine, but what do I know?

http://986forum.com/forums/uploads02...1548983768.jpg

Wow, that is something.
From Pelican...

Cylinder Liner Cracks: In an effort to reduce costs during production, Porsche utilized a type of insert-mold casting process to directly incorporate Lokasil cylinder liners into the case. While this is a neat way to reduce the total number of parts used in the engine, this design basically casts a wearable part into the engine case. There is no factory replacement for the liners: when they wear, the factory expects you to buy a new engine case. In addition, the design of the cylinder liners allows them to "float" within an area filled with coolant.

Excess vibration and twisting from the normal operation of the engine appears to be causing some cracking in these liners, resulting in a small chunk of the liner breaking off. This "D-chunk" problem seems to ironically occur mostly in gently driven cars. Boxsters that are driven hard at the track or on the street do not tend to see this type of damage. At least with respect to the track cars, one theory is that these cars tend to have their oil changed much more often. The problem affects mostly the 2.5 and Carrera 3.4 engines: the 3.2 Boxster S engine appears to be unaffected because it has thicker cylinder walls than the 3.4 engine. When this failure happens, you will see oil and coolant begin to mix together, or a slight unexplained coolant loss.

If your engine experiences this failure, it can be rebuilt using LN Engineering's Nickasil liners installed. They take your old case, machine out the cracked or damaged Lokasil liners and install an aluminum Nickies insert which is stronger and more reliable than the factory cast-in liner. In addition, with the installation of the liners it's fairly easy to increase the bore of the cylinders which translates into increased displacement and more horsepower. If you go this route, you will also need to use some aftermarket pistons and perhaps update the software in your DME to accommodate the change

Well, maybe I can get $ 20 for recycled aluminum. I do have a pair of cylinder heads/valves/cams that I can put on eBay... :ah:

Wow that must have been some knock before the engine blew! Do you understand what happened? My understanding is the IMSB problem should have thrown the timing off, leading to pistons hitting valves and then other bad things. But you say the heads and valves are OK???

Perhaps you can find a used case half ? Are cases a matched pair ? Size, obviously, sure, but wonder if you can find just a used half.
Or , this option here:

https://www.ebay.com/itm/Porsche-986-996-987-Engine-Case-Re-manufactured-With-Darton-Sleeves-Save-/202244075923

Case halves are matched, so no go for mixing them. The link that you posted is for re-sleeving, so it needs a core, one of which I have not.

Grant, the heads and valves “seem” to have escaped damage but I’ll have to take a close look.

Weird. I wonder why folks sell case halves singly. All over Ebay.