Tech guides

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Adjusting your VWs tappets

Adjusting the tappets on any air-cooled VW is a relatively straightforward procedure, but it’s one that many people either fear or simply don’t bother doing. Once you’ve got your head…

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Check your fan belt

One of our pet hates with technical features is statements like ‘check this or that and adjust if necessary.’ Great if you know what the adjustment should be, but no…

engine

Bus engine basics

The flat four VW engine is a pretty straightforward beast. After all, it did originate in the 1930s, and its design altered little during its extended lifetime. In general, it…

Solex carburettor rebuild

Carburettor overhaul

This is how you go about re-commissioning a stock Solex carburettor. VW used a very similar part right across its air-cooled model range and, while there are numerous variations on…

timing006

Setting ignition timing with a strobe

  Ignition timing is somewhat of a tricky subject, not because the act of checking ignition is difficult, but rather because there are just so many variables. To start with,…

The engine can be rotated using a socket on the top pulley.

Static timing

It cannot be emphasised enough how important correct ignition timing is for the VW air-cooled engine, not only in terms of smooth running, but also in relation to engine longevity.…

All stock Beetle engines will run fine on Bosch W8AC plugs, but there are other makes, too.

Checking spark plugs

Now this might seem like a ludicrously simple job, but here we’re looking at more than just unscrewing the old spark plugs and screwing in new ones, for the condition…

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Replacing your VWs points

Checking and adjusting the points in your air-cooled Camper or Bus engine is a tedious job that people generally put off until their car won’t start, then get annoyed about…