I thought VW Recon's had an engine number stamped into them ending in an X? My 1200 has the VW arrows thingy wth a D engine code ending in an X - from what I understood (I might be wrong) this means it was a VW factory recon?
"1958 Harry" wrote:
Yes, you have a VW reconditioned engine.
The VW in the arrows indicates this and the X indicates the motor was exchanged after October 1968, prior to this date the X was not stamped on the case.
Once they started double boring the oil relief passages in the newer engines, no matter the displacement, they all got the 10mm dual oil relief bores in them. So there are 1200's running around with superior oil relief systems!
The earlier exchange cases had a sequential number after the re-manufactured symbol.
VW replacement cases, from April of 72, had the VW arrow circle and a prefix letter.
Once they started the letters, they stopped stamping numbers. They used just letters and you put in your old engine number (or at least you should have done so).
They generally used letters never used in new engine coding sequences. Below are listed many of them.
F1 1300/1600
F2 1300/1600
DO 40-hp part if last digit is "X"
D1 Sometimes a 40-hp part
AB 1966-1979 1600
AD 1600
AK 1967-1974 1500/1600
AM 1600
AS Sometimes listed as Super Beetle orig. case
for '73-on.
If your engine has the number area ground out (routed to remove the numbers so that area is recessed), this indicates that the engine was factory rebuilt using an original re-manufactured case (not a new case). The re-man symbol and number or letters were stamped into the recessed routed out area.
If there is a "P" towards the case seam above the crank pulley, the case mating surface was machined and then re-bored to standard bores.
Sometimes, just for fun?? the mechanic stamped his initials somewhere around the number area. Others have found dates and other weird numbers whose meaning escapes us today.
There are also industrial engines and aircraft engines which don't follow any auto numbering sequence but do bolt up to a car. Apparently they occasionally show up in an old VW. (never saw one, just read about them)
Hope this helps !
Dave
"If you don't have the time to do it right the first time, when will you find the time to do it over again later?"