Scb1712

Hi All,

Was looking at a 2007 911 C2S that is up for sale cheap because the owner said the dealer told him his IMS had failed and the car was making a horrible noise. From everything I’ve read and seen, the IMS 6305 bearing is pretty sturdy and rarely fails. So - my question is - if it isn’t the IMS, what else could it be? Con rod bold?

I’m interested because I’m trying to learn - and also - there aren’t many 2005+ cars in my price range that don’t have issues.

http://www.autotrader.ca/go/19-12409976

Thanks

groovzilla

First thing is that car is a total rippoff if it has engine issues. Should be priced at $10,000.
Since it seems sellers have their heads up their *** with a price of $35,000 on a 997 with engine damage, I'm guessing they are completely lame and the issue with the engine is Bore Scoring on cylinder walls not IMS issue which causes the same symptoms.
Of course this is a guess and can be easily determined with a Bore Scope Inspection.

Either way run away from that car and look for a good example. Don't even consider that car.

gutenfreibier

It could be rod bolts, bore scoring, lifter tick, degraded cam chain guides, etc... An ims bearing usually doesn't rattle and warn you. They are usually pretty quick to go. If one were to cut the oil filter open and see if there is in fact debris in the filter, that would go a long way in ruling out the IMS. I wouldn't drive it while it makes noise though.

For an IMS bearing failure on a 2007 car, it would be a more rare incidence of an ims failure, and a FAR more expensive fix, since the cases need to be split.

ZuffenZeus

When it comes to a "rattle" on an M9X engine, trying to guess the cause without engine out inspection is like spitting in one hand and wishing in the other to see which one fills up first. This car actually would have the 6305 large single row. While catastrophic failures are extremely rare, they can happen; however, when it's a "rattle" then it could be something entirely different. Could be chain slap from a snapped IMS tensioner paddle which would lead someone to think the IMS bearing is going out. Comprende?

Just like Groov warns... the seller is crazy if he thinks someone is going to pay $35,000 for a borderline roller. The M97.01 3.8 engines are hard to come by on the used market and rebuilding one is going to be north of $20K and so you'd be in this car for about $45.000+. I'd keep looking and with the right amount of patience, I nice will pop up in your budget.

Scb1712

Thanks all for the salient feedback. I was thinking it should be around $15k (it’s Canadian $$ afterall so add 25% to US values) if it’s just a roller knowing the cost of a rebuild. I guess I’ll just have to be a lot more patient and hope prices don’t go up in spring

groovzilla

Fall/Winter/Spring are the best times to shop for Porsche.
Enjoy the hunt!

LK_997

I'd be curious if they are willing to let it go for about half that at? How mechanically inclined are you? It could be any of the above items, or could it be the dual mass flywheel or something external to the engine making a racket?? Im not experienced enough in these cars to say, Im just thinking out loud. My porsche has not been to the cgy dealer, I bought private and do my own wrenching, so I cant speak of the quality of their service, but one of the other major dealers in town of another german vehicle I own I have absolutely zero trust in. I dont blame the techs as much as the flat rate and upsell / oversell mentality. I would wonder if they are trying to sell an engine?

kellen

Agree. Overpriced and don’t even consider it. Keep looking.

Cheapest Porsche will be the most expensive.

Petza914

D-chunk failure, broken connecting rod or failed rod bolt, ims bearing, snapped timing chain from worm out tensioner pad, etc.

A 997.1 roller is $10-$12k unless a really special color or laoded with upgrades or options.

Scb1712

I agree - I’d be more curious at half his price. I’m comfortable doing most of the wrenching myself even down to dropping the engine out. But I don’t want to get into a full tear down and rebuild as reassembling the pistons etc is too fiddly and requires too many specialised tools. I’ll keep looking and hopefully one without a smoked engine will come up that I can afford.

dgjks6

I think with prices now it may be worth more than $10-12,000. I think $35,000 is high. But I bet a mint 997.1S manual with a new motor is a $50,000 car currently. So the question is whether motor rebuild prices have gone up as fast everything else.