| How
the hell do Type 2's work ? Stop that bus, I
wanna get on..
Movin on up -
the gearbox
It's an explosive mixture - the
carb and ignition.
It does it's thing
like this...
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So to re-cap the primary circuit is
stopped by the condenser, the coil builds up the high voltage electricity bolt which
shoots from the coil to the distributor cap to the rotor arm (or dizzy as it's known by
some people) and jumps onto one of four posts in the distributor cap and then
to a HT lead leading to a spark plug, which fires the fuel...Kabooom.
Right...Now we've got it. Your Type 2 Bay Bus is moving cus we've got all the
essentials, to get the engine doing it's job, fuel mixture, a bolt of electricity (spark)
and compression. Stay with me, it does it's thing like this...Power Stroke
This is the Kaboom, the fuel is burned and pushes the piston down at the crankshaft to the
crankshaft throw which turns that energy into the round and round motion of the
crankshaft.
Exhaust Stroke
As the piston shoots back up the cylinder the exhaust valve opens to let out all that
nasty gas built up by the combustion process through the exhaust and out into the air for
pedestrians to breathe.
Intake Stroke
The pistons arrives at the top of the cylinder head again and the exhaust valve closes.
The piston starts it's downward movement as the intake valve opens and the
piston pulls in the fuel mixture.
Compression Stroke
As the piston reaches the bottom of the cylinder, the cylinder is full of fuel and both
valves close. On the way back up again the mixture is compressed to something like a 7 to
1 ratio as the piston reaches the top the points open and the plug fires. The mixture is
burned and the piston is forced down on the power stroke.
As we all know the engine on your Type 2 bay bus is air-cooled. What this means is the
heat of all that combustion is taken away by air flow. The cylinders and heads have fins
cast around them to aid in getting rid of all that heat. The air is forced down between
the fins by a fan and all that tinwork in the engine compartment is provided to keep the
air flowing in the most efficient way. The most common fan in VW Type 2 bay's is
attached to the rear of the crankshaft inside a fan housing and so is driven
directly. Earlier bays have fans driven with the generator by a belt.
The generator or alternator is an electrical device which
charges the battery and supplies power to your lights at night. There is also a thing
called a regulator which is a little box hanging around with lots of wires coming out of
it, this controls the current and voltage sent to the battery.
Structurally the Type 2 VW bay bus has a chassis and solid floor pans, with everything
else bolted onto that.
Well that about does it, if you have any questions why not drop me a line.
Happy camping.....
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