1971 911S w/AC: which dipstick to use?

Wolff1953 · 08-28-2007, 07:45 PM

I went to my local Porsche dealer, described my car as a 911S Targa with A/C and asked to order the appropriate dipstick for it. It needed to be special ordered so almost 2 weeks later I tried inserting it into the oil filler tune... no way it would go in. The filler neck has 2 - 90 degree bends in it and the dealer supplied stick won't get past the 1st 90. The dealer gave me a 901 107 770 00 part.

Can someone help me determine what the correct part number should be and perhaps post a picture of one for my car? Many thanks!

ed mayo · 08-28-2007, 07:59 PM

The dipstick was a bendable coil affair so it could make the double turns, much like a flexible magnet tool. It was supplied by the maker of the A/C kit, probably either VPC (Volkswagen Products Corp) or Kool-aire don't remember which. It WON"T be a dealer item. You may have to make one from the magnetic pickup tool mentioned.

Wolff1953 · 08-29-2007, 08:58 PM

Ahh...now it all makes sense! My mechanic said to get a proper dipstick and I guess he just didn't know what he was looking at. See the attached picture and scale. Can you tell me about where the full indication should be?

Many, many thanks for your help.

ed mayo · 08-30-2007, 08:34 PM

Well, glad to have helped solve the mystery. The full mark should be that ring at the 11" mark. The finger loop end looks a little cruder than I remember them being, like maybe someone's repaired that one once. The finger loop should have been a little thicker so that it would act as a stop against the tube. Maybe once you establish exact oil level you might braze washer stop on the end.

Wolff1953 · 08-31-2007, 09:02 AM

Outstanding! My thanks to you and this wonderful forum.