Authenticity :: Engine
Timing Hole Plug
If you look down on your engine (towards the rear of the car in the center), you’ll see the hole in the fan-housing where the timing mark can be seen. If you can see the timing marks, you're missing something. There's a small rubber plug (311 129 000) that just pops in that hole and keeps air from escaping.
Air Cleaner Boot & Clips
This is another one of those items that is either missing or deteriorated on many Type 34s. The VW Parts List calls it a "boot - air cleaner" (311 129 695 B). It's an accordion rubber boot that connects the end of the air cleaner to the warm air mixing box (see picture above). The early boots had four bellows, and later ones had only two.
Early Type 34s had screw-type hose clamps to secure these boots. At some point in production a quick-release clamp design replaced the early screw clamps. The quick-release clamps are much easier to work with.
Note from Everett Barnes: Quick-release clamps were not used until the 1966-67 time frame (I do not know the exact date or VIN), and only on the air cleaner side. Of course, they are nice to have as it makes it much easier to remove the air cleaner.
1500S Engine Details
These photos came from David Welsford's 30,000 original mile 1964 343, one that is very authentic and has been restored to original specs.
The above photo shows the anti-kink wire on the oil breather hose, which joins the oil breather unit to the air cleaner. As you can see, this anti-kink wire makes the tube bend nicely around the coil.
This photo shows the spark plug wire fasteners, which keep the plug wires from touching the hot engine tin. This photo shows the left side plug wires attached to the metal bracket (311 905 143A) with two ivory plastic clips (311 905 451) for each wire. This metal bracket is attached to the engine tin by an 8mm screw. On the right side of the engine the other two plug wires are held in place by an identical ivory plastic clip that is mounted on the oil breather unit.
This last photo shows one of the fuel line fasteners, which keeps the fuel line from contact with the engine block. If you look closely you should be able to see an aluminum clamping piece that the fuel line clips into from underneath. The VW part number is 311 127 525. The aluminum piece itself is attached to the nut securing the oil cooler. There is also another aluminum fuel line clamp visible in the above photo above this one.
When you're going through a restoration and want everything to be "just right" it's easy to overlook the fuel pump. Over the past 40 years the fuel pump in your Type 34 has probably been changed at least once, and depending on what was available at the time your original fuel pump may not be the same one as when it was new. There are a lot of Brazilian and aftermarket fuel pumps too since they are less expensive and easier to find.
There are two styles of original fuel pumps for Type 34s: early (top cap in the photo above) and late (lower cap). Early fuel pumps have a two-piece ivory cap that has a flat vertical edge. Late pumps have a one-piece ivory cap that is smooth and rounded. The early pumps with two-piece caps were fitted to 1962-65 Type 34s, and the later pumps with one-piece caps were used from 1966-69. Both caps are secured onto the fuel pump with a circular metal snap ring that fits snugly into the groove in the pump housing. The early and late fuel pumps and caps are specific to one another and not interchangeable. Look closely at the later-style fuel pump in the photo and you'll see the large bronze internal filter nut. This later pump can't be used with an early cap.
You can see the early two-piece fuel pump on Andy Holmes' 1965 344 (above).
And here's the later one-piece fuel pump on a 1969 model in the Karmann Museum (above).