Early AC question, Crank pulley mid run 67 SWT

[Jerry L]

Hello, I am looking for others with early AC that may be factory Porsche-Air and how the pulley for the compressor was made. My car is a mid run 67 912 (yes 912 but I don't know of any other 67 912 SWT's or coupes with AC) I have had the car for 12 yrs or so. At Amelia Island several yrs ago a gentleman from Porsche talking about the car thought it could have been a show car as to why would anyone put AC in a truly open car and being the underpowered 912?
Compressor has been disconnected since I owned the car. doing some work on it today I removed the pulley which to this point I assumed it was similar to the 68 smog pump two belt cast pulley but wider / deeper. well it is an aluminum machined pulley, fit to the 912 cast iron pully and had 2 dowels that fit nicely to the 2 machined holes in the cast pulley (356's have 4 holes) the machined part has the factory engine # stamped into it as well as well as the initials MOE (not sure if this is the person who made it or some other designation?) The back side with the two dowels shows layout dye, and the 2 dowels just fit to the inside id the 2 holes in the cast pulley, really a nice fit, hand made. The bolt to retain the pulley assembly to the crank is not like other 356 or 912 bolts it has a different washer and is end stamped VW on the threaded end and obviously longer than other 616 bolts

Has anyone else seen a similar pulley added to the early 911 stock pulley? I have to assume the factory used this method prior to creating a new cast double V pulley for the 68 airpumps, I have to assume if this was aftermarket there would be no need for the engine # to be stamped?

Any information is appreciated.

Best Regards

[Frank Beck]

At Amelia Island several yrs ago a gentleman from Porsche talking about the car thought it could have been a show car as to why would anyone put AC in a truly open car and being the underpowered 912?

Here's a thought: Because it's really hot in some parts of the country. 912 show car... oh brother. Just like my Shih Tzu mix is a show dog.

We used to see A/C on 912's more than one could imagine. My memory purposfully fails me when it comes to 912's but that looks like a Meier-Line pulley; that system was easily recognized by a funky 2-piston compressor and solid aluminum plumbing.
Performance was pathetic at best. An old man with an ice cube in his mouth blowing on you would cool better.

Below are a couple of pics I snagged online of unit in a Fastback. Is your compressor blue with 2 cylinders?


As for "Moe"... this system had to have been designed by the 3 Stooges so it makes sense that the ringleader would have autographed it.

[Jerry L]

It is not that set up, the car was sold new to a Air Force officer stationed in Germany, and stayed there for several years before coming back to the states with him. The unit in the car is "Porsche-Air" I know that a lot of AC were dealer installed / after market, the thing that caught me yesterday was the matching engine #, if Meier or any of the others doing the add on AC why would they add the engine #?? My thought was MOE may have been mount on engine then the # also stamped?
I realize after 50 years all is speculation, but wondering if early 911's with early AC systems may have had something similar added to the stock pulley or if they were cast dual V?
Thanks for the post.

[Frank Beck]

How about pics of your other components?

[Jerry L]

Will Do,this evening.
Regards

Pics of brackets and the CoolAir under dash unit, which I know did dealer installed units, my main curiosity was having the matching engine # on the add on second pulley, other brackets look to be well made & thought out on fit to block, spot faced pads for the case nuts holding 3rd member. have had the car off the road for 3 - 4 years, its time to go back to a daily driver SWT, condenser and compressor are stored in attic of garage. no plan to try to use system at this point, was removing the AC brackets & change to an early 912 engine support bar like the 911 and change to a 901 trans beam when I ran across the engine # on the pulley. parts will be stored away.

Thanks