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Re: '73 Squareback questions and air conditioning


On 13 Nov 97, James Kramer wrote:

> 1) COOLING: I know a well-maintained flat four will withstand hot weather 
> driving, but I've heard that the tight fittings around the T3 pancake 
> design make cooling more of a problem. Any comments? This car will be for 
> regular driving in the tropical climate of Queensland, Australia. What 
> things can be done to keep the engine running cooler?

These engines have no trouble with cooling as long as all the 
important cooling parts are in place and in good condition.  Common 
problems are caused by cracked, poorly installed, or missing intake 
cooling air bellows, allowing the engine to suck in warm/hot air 
from around the engine to cool itself, and from missing sheet tin or 
air seals, such as the small tin parts and rubber seals around the 
spark plug connectors, allowing a lot of cooling air to leak out 
before it has finished doing it's whole job.

> 2) A/C: Related to the last comment, just how much of a monstrous thing 
> would it be to install A/C in a squareback? Would the extra strain on the 
> engine be just be tempting overheating fate? Or does anyone have advice 
> for how this can be done effectively? For that matter, ARE there any 
> practical aftermarket A/C solutions? I know it was a rare option...maybe 
> modern compressors can handle the job in some managable manner?

As you may have seen, I have been quite willing to express my dislike 
of the AC as implemented on the type 3s.  This was not a factory 
option, rather it was installed by the dealers on a car that had not 
been designed for it. 

IMHO, the worst part is the butchering necessary to install the drive 
belt for the compressor.  This leaves a large hole where hot engine 
air will get sucked in.  Exactly what I warned against above.  There 
is also the fact that the air cleaner never gets a chance to do a 
good job again and will also suck in hot air.  The extra load on the 
engine is not a BIG issue, but shouldn't be ignored especially in the 
face of the reduced cooling efficiency.

Sorry this is just not the news you wanted to hear.  In spite of the 
fact that it gets over 100F where I live, I would choose better heat 
if I could.

Jim
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       Melissa Kepner                                    Jim Adney
                             Laura Kepner-Adney
                         jadney@vwtype3.org      
                             Madison, Wisconsin
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