[Tech1] Imperial v. Metric

[Dave Plowman]

I was actually quite happy with the old unified threads BMC mainly used 
- as I could tell a spanner size at a glance. But my last BL vehicle - 
the SD1 Rover I still have - has unified for the engine, but metric for 
nearly everything else. But to add confusion, the new bits on the old 
Rover V8, like the injection, use metric.

On 14/06/2023 14:14, Alasdair Lawrance via Tech1 wrote:
> Dealing (as I used to do, anyway), with ancient BMC diesels, and 
> assorted other more obscure makes, it was fine when everything went metric.
> 
> One wrinkle that did come up regularly was a 8mm ø thread which some 
> manufacturers deemed a 12 mm spanner, and others a 13mm (across flats). 
>   13mm (AF) is the correct ISO size.
> 
> Alasdair Lawrance
> alawrance1 at me.com <mailto:alawrance1 at me.com>
> 
> /*Don’t blame me, I voted Remain.*
> /
> 
> 
> 
> 
> 
> 
> 
> 
> 
>> On 13 Jun 2023, at 12:13, Graeme Wall via Tech1 <tech1 at tech-ops.co.uk 
>> <mailto:tech1 at tech-ops.co.uk>> wrote:
>>
>> Converting to the metric system had nothing to do with the EU, we 
>> started the process over 100 years ago.
>>
>>> On 13 Jun 2023, at 12:10, Pat Heigham via Tech1 <tech1 at tech-ops.co.uk 
>>> <mailto:tech1 at tech-ops.co.uk>> wrote:
>>>
>>> Hi all,
>>> Something to consider.....
>>> If we have really exited the European Union, should there not be a 
>>> move to restore Imperial Measures?
>>> We seem to have an amalgam of complicated mixture.
>>> We talk about MPG for cars, but the fuel is dispensed in litres.
>>> Pubs still serve beer in pints. Although the bottles are in ml.
>>> Doctors measure us in centimetres and weigh us in Kg.
>>> Grocers and butchers were forced to alter their scales and tills to 
>>> become metric.
>>> But now to change currency back would not be good - decimal coinage 
>>> works OK,
>>> easier to understand (as in the USA) and our little ones are not 
>>> Vorderman or Riley,
>>> when it comes to Maths!
>>> (A Civil Engineer* explained to me that builders work in mm to the 
>>> nearest 5mm,
>>> so their calculations for quantity surveying always end up as either 
>>> '5' or '0')
>>> *I knew him well - he made the Post Office Tower stand up - not yet 
>>> fallen over,
>>> in spite of 'The Goodies' Kitten!
>>> Best
>>> Pat H
>>> -- 
>>> Tech1 mailing list
>>> Tech1 at tech-ops.co.uk <mailto:Tech1 at tech-ops.co.uk>
>>> http://tech-ops.co.uk/mailman/listinfo/tech1_tech-ops.co.uk
>>
>> —
>> Graeme Wall
>>
>>
>>
>> -- 
>> Tech1 mailing list
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>> http://tech-ops.co.uk/mailman/listinfo/tech1_tech-ops.co.uk
> 
> 

-- 
Dave Plowman
London, SW