Last edited by Jesse-911E 1969; 03-19-2020 at 10:05 AM.
901/03
6191783
23203
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Hello from Italy , i have a early 911 from january 1966, chassis 303511, engine 903658. my question: the chassis both arr with data 67..... and the numbers on my opinion are right. It was a change in Porsche?
The car was restored 1990, in this year a Porsche was not a expensive car....
Last edited by Gianni911; 03-23-2020 at 10:19 AM. Reason: Shure
Hello Gianni, in my opinion the numbers on your engine case are highly suspect. The engine casting dates for that period serial #'s are Sept 1965, so there is no way that a 1967 case could have been used in 1965. While the engine serial and type #' look correct, thus professionally done, the build # is wrong; this is another indication that the engine #'s are wrong. In my opinion, a later spare case was used, and the engine #'s stamped by someone that was not professional enough. Sorry about the bad news. Do you have the CoA or Kardex on the car? Dave
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Yes i have the kartex. My ask, the serialstamp is correct, the typ from the motor is correct, the buildnumber is 3558-3560 not exatly to read.
When this cases are ristamped why the buildnamber is correct?
On the Kartex is a work important 25.07.67
The last owner not has chanced the numbers and to 1965 a 1990 is difficult.
I dont have idea
Gianni, in my opinion it is quite possible that the work to replace the engine case was done by Autogerma. The date 1967 07 25 is the date the warranty service invoice was paid by the factory to Autogerma. The date of repair was 1967 03 14 and the engine case casting date is 1967 05. So, I do not think that particular repair was for the engine case. But the most logical date for repairing the engine would have been about August 1967; this is based on the casting date which would have been used for early 1968 model year cars built in August. That is the period when an engine case with that casting date would have been available as a spare part. If Autogerma did the work to replace the engine case then they likely had the correct stamps to do the serial #. While the mechanic that did the work was familiar with the engine build #, and how it was offset from the engine serial #, he did not copy the build # from the old case, but just assumed the offset from experience. The original engine build # offset had started to increase shortly before this engine was built. This was due to another engine type being built at the same time. My extensive build # database proves this point. It would be interesting to see the date codes on the other engine parts like heads and cam carriers; this would show how much of the engine had to be repaired. The original owner may be able to reveal the truth.
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A good photo ... agust 67
All the rest is ok, solex, alternator 250, castles, gaspomp,cilinderhads 65, its all complete and ok. And think that the chassis was changed in Porsche.
Saluti
Yes, much better photo. The August casting would push the date of repair probably to December 1967. The casting date is a foundry date. Then there is delivery to the Porsche factory, then to the machine shop for the machining and matching of the case halves. After that it would go to either the engine shop or into spare parts. From spare parts to the dealer also takes some time. The whole process does take months.
So a good and long lasting repair to the engine.
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