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Jim Adney wrote: >>So your 65 engine has a serial # with an N prefix that is in the 65 range? Strange that the microfilm would leave that off.<< Yes, but the N isn't a prefix. The engine number stamping on the case looks like this: 0 8 9 2 8 3 7 [VW logo] N >>The M-code listing from the microfilm lists M240 as the low compression modification. VW was known to have recycled M- codes in later years, so it is possible that M240 was a typo and should have been M249 in the early years. I double-checked my printed version of the parts list, and it, too, shows M240 as the low compression option. That also shows up in the engine charts, so it really doesn't look like a typo. Is it possible that your tag actually says M240?<< No, the tag on the engine (securely bolted to the crankcase breather stand) says M249. In the survey it lists four possible engine types for 1964-65: 1.5 liter engine 45 b.h.p.; 1.5 liter engine (M240) 45 b.h.p.; 1.5 liter engine 54 b.h.p.; and 1.5 liter engine (M249) 54 b.h.p. I think since the low compression M240 option is listed as applying only to the 1500N this implies that M249 is the low compression version of the 1500S. (The tag on the engine says 90 octane--doesn't premium fuel have a higher octane rating than that in Europe? That's another clue.) Then, since M249 became obsolete beginning August 1965, VW must have recycled the code for the automatic transmission option in 1968. This explains why I've never had the detonation problems that the 1500S is famous for. Guess I can stop buying high octane gas... Scott 62 343, 65 361 ------------------------------------------------------------------- Search old messages on the Web! Visit http://www.vwtype3.org/list/