[TR] TR6 head studs AC

[Glenn A. Merrell]

That old BW/York Piston Compressor consumes close to 20 bhp with at full
pressure - so for that 1200 herald having what, 36 bhp, then - 20 bhp, sure
I can well understand 40 mph with aircon engaged!  It is a wonder it would
not have tossed you through the windscreen when it switched on !

 

StagByTriumph

From: Triumphs [mailto:triumphs-bounces at autox.team.net] On Behalf Of John
Macartney
Sent: Thursday, September 06, 2018 5:14 AM
To: 'Randy and Valerie DeRuiter'; 'triumph list'; 'EDWARD WOODS'
Subject: Re: [TR] TR6 head studs

 

At the risk of a long post, in my time at Standard-Triumph ending in 1973,
the factory view of air-conditioning was fairly negative and went mostly
along the lines of, "if you want to be a bit cooler, wind down the windows.
Only pansies want A/C".

Moreover, the aircon units available in the UK at the time for factory fit
were either of UK or German manufacture and imposed a massive load on the
engine to drive the compressor - and they also took up an enormous amount of
space with belts going everywhere!!!

On one occasion, I sold a Herald 1200 saloon to a UK diplomat on his first
posting to our Embassy in Kabul, Afghanistan and this location was usually
the first for any aspiring First Secretary or wannabe Ambassador. I
tactfully tried to persuade the customer to try to do without it citing the
likely power loss but he was not to be dissuaded.

The car was built including the spec for that market of tropical radiator
and fan, no heater, low compression engine (7:1) for the low octane fuel
with matching distributor, heavy duty suspension, engine skid plate and 5.60
section tyres in place of the 5.20's for other markets. Prior to delivery,
the customer asked me to undertake the car break-in process for the first
1,000 miles so he could take delivery after the first service. I did this
for him and kept it for a few days afterwards. On the day I delivered it to
him at his home near London, I used the M4 motorway to reach his place in
the country and discovered the car could cruise happily at 60-70mph with
nary a problem - apart from the usual tooth filling shake-outs from the
rigid suspension.

Then I turned on the aircon.

Flat out with the aircon running and a *cooler* breeze coming into the body
itself, there was no way I could get more than 40mph out of it. Switch it
off, and the speedo needle shot round the dial to 70mph plus.

Because of that, aircon in the 60's and early 70's was a dirty word at the
factory and I greatly doubt that Production or Engineering fitted longer
mounting studs for North American applications, the philosophy being "if
it's good enough for the UK, it's good enough for the rest of the world".

 

Jonmac

 

From: Triumphs <triumphs-bounces at autox.team.net> On Behalf Of Randy and
Valerie DeRuiter
Sent: 05 September 2018 15:52
To: triumph list <triumphs at autox.team.net>; EDWARD WOODS
<fogbro1 at comcast.net>
Subject: Re: [TR] TR6 head studs

 

Ed-

 

 

Wild guess, but US market cars with the dealer installed a/c unit used the
two front stud locations.  Maybe there was some factory coordination going
on there?  Or maybe they just had a few longer studs sitting around in the
parts bin!

 

Cheers

Randy

 

  _____  

From: Triumphs <triumphs-bounces at autox.team.net> on behalf of EDWARD WOODS
<fogbro1 at comcast.net>
Sent: Tuesday, September 4, 2018 5:41 PM
To: triumph list
Subject: [TR] TR6 head studs 

 

List,

 

Anyone know why 2 two of the TR6 head studs are longer than the other 12?

 

Ed Woods

 


 
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