Re: [T3] Type 3 & Type 1 Cooling Systems

["Jim Adney" <jadney@vwtype3.org> (by way of Greg Merritt)]

On 28 Mar 00, at 14:04, Ian Ruinaard wrote:

> the Type 1 (Beetle) has a Ducted Outlet type
> cooling system - this is whey the bottom of the beetle engine
> compartment has all the sealing tin around it.

>  the Type 3 (Fastback Squareback Notch etc..) has a Ducted
> Inlet type cooling sytem - the car sucks the cool air in the side
> vents & it is suchked into the engine from behind ( Thru the rubber
> bellows at the back of the engine compartment & then exhausted below
> the motor.

I never heard it "ducted inlet" and "ducted outlet" before, but it fits,
is accurate, and I like it!

> >From this as I understand the following:
> If you run a beetle with a Baja conversion & you do not fit the
> fibreglass intake grille cover supplied with the kit you run the risk
> of overheating the motor. If You run a Type 3 without the rubber
> bellows installed at the back of the motor it will overheat. If you
> run a Type 3 motor in a Buggy or Sandrail it will also overheat.

It is likely that if one were properly careful with ducting with any of
these applications they could be made to work, but most of the
time they are ignored and what you say is true.

> The one I am not too sure about is the Type 4 system - I have never
> looked at them in detail.

As originally installed, the type 4 engine was:

Ducted inlet: type 4 VW cars
Ducted outlet: type 2 busses and Porsche 914.

So you have some choice of tinwork....


-
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054


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