I'm very lucky that the engine is original to the car and it still has almost all of the hard-to-find first-year-only parts. Here's what I started with:
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Except for the aftermarket Bosch blue coil almost everything is as it should be for an April 1962 VW 1500 engine. Early Type 3 engines had a number of unique features, and it's not often you find one that hasn't been "improved" by someone along the way.
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The original Type 3 engine was essentially a bored and stroked version of the standard VW 40-horse engine with a reconfigured cooling system. As with the 40-horse, the intake manifold joins the heads at a 90° angle. This connection was angled 20° with the beginning of the 1963 model year in August 1962, so the '62 intake manifold and heads are one-year-only parts. The spacer seen above under the heat riser tube (at the top of the photo above) was replaced with a thermostatic valve in August '62 as well.
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The Bosch ZV/PAU 4 R 6 distributor is also unique to early 1500s. It's a vacuum-advance cast iron-bodied distributor that's very similar to the one used on the 40-horse at the time, but with a different advance curve. It was used from late 1961 through August 1963.
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For a few months in early 1962 the air cleaner had a connection port for a crankcase breather tube but nothing to connect it to. The air cleaners on these transitional cars got a plastic plug to seal off the breather port. Very few of these plugs have survived.
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I'll document more odd 1962 1500 features as I tear the engine down. But first things first: it's time for the engine to come out.
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