Chaos

Big Bonus

Flat6 Innovations

There are no issues.. Traffic has been crazy on the site with the release of the IMS Guardian.

I surf the site with no issues with any browser until I set the security sensitivities at maximum.

soverystout

To the OP:

I'd be very happy with a replacement engine IF there were no leaks. If I had to bet I would put my money on the RMS being the issue now. That is of course if this engine is the updated engine with the larger IMS bearing.

Get the # of the engine block so you can find out what you are dealing with and go from there.

Good luck.

kt

Ahmet, I just purchased an '02 with the engine replaced in 6/2009. Service records just describe the reman motor as "3.6L 05 996 CARR". How would one go about determining whether or not my MY02 has the newer 6305 single row bearing (MY06+) vs. the 2nd gen bearing and one that I could have the IMS retrofit done on?

I'm a newbie here but been lurking for awhile... my first P-car. 2002 996 C2 Cabriolet, seal gray, black interior, 32k miles, full service records, original engine replaced at 15k miles on 5/2005 and then replaced again at 27k on 6/2009 (both with dealer description of "3.6L 05 996 CARR" for the reman engine). Engine and bone dry and car runs strong. Loving it!

soverystout

If you engine was replaced in 2009, you have an unserviceable bearing.

Topaz330ci

So your first reman engine failed? First I hear of this personally. Do you know the cause of the second failure? I bet that owner was so pissed!

Ahmet

An engine replaced in 09 by Porsche would certainly have the updated bearing.

Guys, keep in mind that engines were replaced by Porsche for any number of reasons and not necessarily due to "catastrophic engine failure". It was Porsche's policy for some time to not open the motors (or transmissions) if there was any sign of internal work being required, perhaps even something as simple as a ticking lifter....

jasper

Hang on....did Porsche build 3.4 litre engines with the 2nd gen IMS bearing as well?

The 997 motors were strictly 3.6 and 3.8 litres remember. Presumably the OP car is still a 3.4.

I posted about this topic a few days ago. Mostly I got beat up for making a post containg the letters IMS, but other than that there appears to be little known about the new style bearing.

kt

Nope, 2002 was first year of 3.6L. First and second replacements were 3.6L. Just don't know how to determine which gen.

Reborn996

Okay, I had a 1999 that had the motor replaced in 2008 by my local Porsche dealer. Although it did have all of the updates applied it was still a 3.4 motor to make it compatible with my year of car. That meant the IMS was the same design offered in 3.4 motors. Unless the previous owner had the car rewired to support Variocam + for the newer motors then you probably still have a 3.4 Variocam motor with the upgradable IMS option. I think the easy way to check this is looking at the cylinder head area to see if Variocam or Variocam + is showing.

David

jasper

Umm...

Just saying all 3.4 motors probably have first gen IMS bearings, regardless of build date.

Reborn's comment confirms this.

kt

2002 996 C2 3.6L

5/2005: 1st failure at 15k miles - original 3.6L replaced with reman engine with the description of "3.6L 05 996 CARR" under original warranty
-- Service Record states: Oil leaking from engine bell housing area. Removed transmission and inspected for leaks. Found leak at Intermediate Shaft Housing Seal. Replaced seal and powdered back of engine with baby powder and ran engine on hoist with transmission removed for 1 hour per PCNA. Re-examined leak. Baby Powder shows signs of leakage at case seam at intermediate Shaft. Replaced engine with rebuilt unit from Porsche per PCNA. Test drove car. Rechecked for leaks. No further leaks found.

6/2009: 2nd failure at 27k miles - 1st reman engine replaced with 2nd reman engine with the same description of "3.6L 05 996 CARR" - way out of warranty but previous owner was able to get PCNA to do a "one-time goodwill warranty".
-- Service record states: Owner states there is a bad shatter coming from the engine, sounds like metal flying around in engine. Oil leaking. Had codes P0344 and P0346 phase sensor Banks 1 and 2. P0021 camshaft position with respect to crankshaft Bank 2. P0355 RPM input circuit intermittent. P0300, P0305, P0301, P0306 misfire codes. Chainshaft bearing has seized causing camshafts to jump timing on both banks. Oil has a significant amount of metal in it. Replaced engine with remanufactured unit. Transferred over A/C compressor, exhaust, coolant hoses, clutch and flywheel. Aligned vehicle. Test drove vehicle.

Car currently has 32k miles since the 2nd reman in 2009. Just more info, previous owner was meticulous about service. Records show every year at spring - in dealer for annual maintenance (oil change, etc.), every other year brake fluid flush. He didn't drive it much - approx 3-4k per year.


So my original question was: is there any definitive way to determine if this 2nd reman engine has the 2nd gen or 3rd gen IMS bearing? Would PCNA put a 997 3.6L (3rd gen IMS bearing) into MY02 but this being the 2nd replacement and as late as 2009?

Thanks. And yes, I'm a newb. But learning quickly.

Charles Navarro

Any engine built in or after MY06 will have the larger 6305 series bearing. I personally have a reman 99-01 996 3.4 built in 2009 and purchased in 2010 and it has the larger bearing.

The only question I have is Porsche went to a 3.4 crank with 3.6 main journal diameters in 2006 (for the Cayman). So does my 3.4 built in 2009 have this upgrade or is it like the earlier engines? I guess I'll just have to tear it apart to find out, but the 2010 Cayman S is scheduled first for its 4.0 upgrade, as we're actively working on upgrades for the 9A1 engines now :-)

swan00

Wouldn't the replacement engine be a rebuilt 2000 engine? A 2005 engine would be a 3 chain engine which is not compatible with the 2000 car.

swan00

Wouldn't the replacement engine be a rebuilt 2000 engine (5 chain)? A 2005 engine with 3 chains wouldn't be compatible with the 2000 car.