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Join Date: Apr 2012
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Unhappy How do I know if VIN and Engine # match?

So I bought my first Porsche - 2002 C4S. A friend sold it to me for a very good price after she described it having a really bad sound in the engine. After doing my search on the internet - Alas, the IMS bearing issue! I took it to a local SoCal rebuilder, signed the papers to do the work, and THEN I researched them! I usually do my homework but I was too excited to get it running. After searching your Forum and others I found they are not very reputable - some angry customers out there. I'm sick to my stomach. I went to the shop today and told them to stop all work, don't do another thing and I want to cancel my order. Without any real hassle, the head honcho said no problem but he needed time to gather all the parts and get the block from the shop that was boring it out to a 3.8. Now here is my question. Does anyone know how I can find out if the engine block I get back is mine - I didn't take the number off it before I had them take out the motor. Second, is there some kind of parts list that I can print that I can inventory the parts I get back. I'm freaking out that I'm not gonna get some old worn out parts that I'll have to replace or not all the parts will be returned. Also, any makings on the fuel injection system that I can match to my car?

Sorry for such a long thread but I'm very worried I'm gonna take it in the shorts Big Time, well, more than I already have . . .
Old 04-16-2012, 05:48 PM
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Wow that is going to be difficult. I rebuild these engines so I can help you pickup the parts. PM me if interested, probably the best you can do is make sure you get a 2002 3.6 engine case back by the engine #
Old 04-16-2012, 07:53 PM
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996 Engine part code? - 996 Series (Carrera, Carrera 4, Carrera 4S, Targa) - RennTech.org Forums

The only way you will know for certain if your engine number matches the VIN is to get a Certificate of Authenticity from PCNA for a fee of somewhere around $100 bucks. I am ot sure why you hit the panic button though. Porsche replaced so many engines during this run of cars that the original engine in the car is not necessarily a good thing. If you have a 3.6 core being sleeved to fit 3.8 pistons with the IMS upgrade, THAT is your talking point (and selling point if you choose to sell). The question to ask your builder is if the core is a 3.6 from 2002, 3 or 4.

The link above should take you to Renn-Tech and you can follow the instruction to get the general info for your engine but the last 6 didgits will be engine sequential serial number. Your 02 engine should start with M96/ so don't confuse it with the part number.

edit: just read between the lines and think your talking about the 'meister'. Get your bits back and send it to Don at EBS in Reno for a proper rebuild.
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Last edited by tonythetarga; 04-19-2012 at 07:11 AM..
Old 04-19-2012, 07:07 AM
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Thanks for your feedback. I'm still working on getting my motor (in parts) back. He wants to charge me for stuff that was never called out in my invoices and he didn't explain any cancellation policy nor did I sign anything explaining it. I'll try a Porsche Dealer and Porsche Cars of North America (PCNA) to see if they can help me.

I know the history of the car, I bought it from a friend. I know the engine wasn't replaced. My worry is he will give me back a damaged or an older block with more wear on it. My engine had only 60K. I'm also worried he's gonna give me other parts that didn't come from my engine. He has a ton of parts in his shop which he could pick and choose more worn parts to give to me passing them as from my engine; keeping the parts he removed to resell or whatever.

Paniced, you can say that! But rightfully so, I don't want to have to replace parts that don't need to be replaced.
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Old 04-20-2012, 03:36 PM
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There are no markings on any external engine parts that could be identified with any engine.
The date stamps may help, but don't really help.

Regarding the engine number, the original number is in Porsche US database, the dealer should be to supply that number. If the engine had been changed the new number should be in the database as well.
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Old 04-20-2012, 04:12 PM
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Thumbs up

Ok, I finally got my engine back, albeit, still in pieces but the "Meister" didn't do too much work before I stopped the presses! The heads were machined and the IMS and bearing are "new". I was forced to buy parts that MM said were damaged when the IMS bearing went out. I asked if MM would take them back and MM said "No" even though 3 of 4 were "good" used parts from his stock. I had given them a deposit using a credit card but they would not give me my engine back until I paid them cash, my card would be credited for my deposit. They know if its paid by a card then you can use the credit card company to help fight them. I wanted to move forward so I paid the cash, got my engine back in pieces, and I inventoried it as best I could using exploded views of all parts of the engine. I definitely got my block back since I was able to get the block # from Porsche.

That was a short version of the story.

My question now is: where do I go from here? Rebuild what I have, buy a verified "good" used engine, or both? Both - so I can drive my car while rebuilding. I know Flat 6 Innovations is one of the best in the country for rebuilds, but they charge a premium for their work (I hear its worth every dime) but I don't have $20K for them to rebuild it. I considered doing it myself but have very limited experience with rebuilding engines never mind a Porsche Engine. However, I'm willing to learn and buy the tools needed. I am even considering taking Jake Raby's rebuilding class. Who is reputable for used engines? Smeone suggested the following:

Oklahoma Foreign

DC Automotive

20th street salvage

Parts heaven

LA Porsche dismantlers - mixed reviews on these guys.

Anyone have feedback about any of the above?

Thanks for any help advice!
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Old 05-03-2012, 10:32 PM
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Glad you got your bits back and have verified the engine number. I guess a lot depends on what you want to do with the engine...was it going to be a straight 3.4 rebuild or were you going to sleeve it to a 3.8? If you are going back to a 3.4 and you have some work already done at the bottom end, I would ship everything to Don Weaver at EBS in Reno. Your rebuild will be about 8k not the 20 you mentioned. I believe that price is for the teardown, sleeving and rebuild with some extra goodies. Don can have the LN work done as well if that is what you want. The sleeving and pistons/rings cost about 4500 bucks on top of the rebuild.
Don has an excellent reputation and is a lot closer to you. Good luck with your choice.
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Last edited by tonythetarga; 05-05-2012 at 07:01 AM..
Old 05-04-2012, 12:38 PM
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It's a 2002 so its a 3.6. The best upgrade is to get the L&N 3.8 piston and cylinders. I don't know any places in CA but a know a great shop in NY but after shipping back and forth and then having a shop do the install will cost a crazy amount. I'm sure that there are very reputable indys in your area. Alway go with them. Good luck. I have a 2002 3.8 upgrade. You WILL not be disappointed.
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Old 05-05-2012, 04:42 AM
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Thanks for the feedback. I will give EBS a call and see what they can do for me. I'll probably drive it up there so I can see the shop. It it will be easier than trying to box everything up carefully so it doesn't get damaged. It's about a 7 hour drive. Just wish I could do it on my bike.

Yes, it is a 3.6 not a 3.4. If I can afford the 3.8 Kit I will do it but with my little mishap, I lost some funds.

Again thanks for the feedback.
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Old 05-06-2012, 07:31 PM
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