Cuda911

No prognosis, other than that the chain slapped a hole through the case. Why? That's the unanswered question. It will require splitting the case to answer this.

I have some parties interested in purchasing the motor, and they have indicated that an autopsy will be performed. Certainly, once I find out I will post that in info. this thread.

Today's progress: all top end stuff from my old motor was transferred over to the replacement motor. A couple of the spark plug packs from the replacement motor were in crappy shape for some reason (the rubber at the spark plug end was cracked/broken.), so swapped out the ones from my motor. I had recently replaced the water pump in my original motor, so that was swapped over too. Plastic impellers, in case anyone is wondering. The shop said the metal ones are MUCH less prone to failure, but oh well.

Tranny was bolted back in place. So, pretty much now all that's needed is the final install. Of course, I will need to get the AC recharged too. Hey: let's start an oil thread! I'm going with Mobil-1 0-40. Wacky, I know. Let the arguing begin!
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Jake Raby

The last time I saw this MOF it was an engine from Sonnet Porsche. It picked up a chunk of debris and ran it through the chain, the chain "bumped" out and kissed the case just like yours.

Still interested in buying it, I don't need the block.

Cuda911

Yep, you are on the short-list. As soon as the motor is available (early next week) I'll let Rebecca know. One of the interested parties is local to me in San Diego, so that's the easiest way for me to get it out of the shop.

In addition to the pic you posted earlier in this thread, several others have made mention of this identical MOF. So, the question is, what is that "debris" that got picked up? There's been mention of a rod bolt, but I think that would have caused a lot more noise and damage. Well, I guess we will all know fairly shortly, so no need for my half-assed speculations.

Jake Raby

I have seen the rod bolt create this 2-3 times. They will sometimes stretch, and then loosen, and simply fall out. Some of those instances will toss the bolt through the top of the case, other times it won't be that radical and the rod cap will stay in place and allow the engine to run without any noises, till its picked up by a chain.

I have also seen the IMS drive chains start to fail and have this failure occur.

In one instance a Porsche dealer did an IMSR and left a piece of debris in the engine, it was picked up by the chain and did this very thing as well. Anything that is made of a substantial material that runs between the chain and IMS drive can cause this. I have even seen a shop do an IMSR and run the wrong length bolt through the bell housing, and break a chunk of the case out, that fell into the chain well. That debris (piece of the block) was picked up by the chain and tossed it through the block. That car was owned by an RL member.

c4racer

You know the motor may well fail anyway so whatever oil you use is probably a moot point!

Fwiw motor in my 99 has been on M1 0-40 for the last 30K miles and so far so good. I know that could change at any moment. It's an approved oil and as long as you change it every 5-8k miles you should be good on that front IMO.

Cuda911

1/28/2015 Update:

Just got a call from the shop.

The car's ready!!!

The mechanic (Gary) said that after it was put back together, it started right up instantly, with the first turn of the key.

I'll head over in an hour or two.

BTERRY1

Sweet!!! cant wait to hear more

Gonzo911

Make sure you ignore that pesky "breaking in" period. Everyone knows that's a myth anyway. Get it up to redline as soon as possible and congrats!

John@Fabspeed

NIICE!! i bet you're excited!

Sneaky Pete

Happy Happy!

kab1994

What's wrong w/ 0W-40? That's what my indie recommends

dgjks6

Damn that was fast. I am excited for you.

5CHN3LL

Hot damn!

Macster

It has been a long journey with some surprises but you are almost home.

Best of luck with the replacement engine.

May it run long and you prosper.

Oh, nothing wrong with 0w-40. But in San Diego given the mild climate the next oil change maybe you want to switch to Mobil 1 5w-50 oil? (not a typo for 15w-50!).

I switched to 5w-50 here in sunny Livemore -- had the damn A/C in the car on last Saturday it was warm -- because the climate is so mild.

On the way back to Calif. from a road trip to the (frigid) midwest and time to get the oil changed the mid-west Porsche dealer put in 0w-40, which is fine by me. I'll leave it in for 5K miles and then switch back to 5w-50 next oil change.

kromdom

so SoCal peeps are having a BBQ/GTG at your place to celebrate the rebirth/resurrection of your car followed by a quick jaunt up Mt Palomar?
Or maybe retrace your last trip to purge the gremlins/demons of that road