I figured it was just an excuse for the wrench manufacturers so they could
continue making 2 sets of wrenches.
> On Apr 24, 2020, at 9:04 AM, i erbs <eyera3000@gmail.com> wrote:
>
> Yup,
> The US was going to convert, but busineses and manufacturers raised a storm
> over the cost to convert, so it never officially happened.
>
> Ira Erbs
> Portland,OR
> 59 BN4
> 67MGB
> 65 AH Sprite
> phone makes it's own choices. Forgive typos
>
> On Fri, Apr 24, 2020, 2:15 AM <simon.lachlan@alexarevel.plus.com> wrote:
> â??Flirtedâ??? To tell the truth, Iâ??d never given it much thought but had
> â??assumedâ?? that the US had resisted metrification. Donâ??t I recall that
> all oil-producing kit is Imperial because of US domination in that area? And
> planes��?
>
> I do know that, when Ted â??The Grocerâ?? Heath dragged the UK into the
> Common Market, we were supposed to go Metric. There were some hiccups along
> the way. A pint of beer remains a pint. As did a pint of milk whilst milk
> bottles still existed.
>
> EU: â??You must cease drinking pints forthwith. You will obeyâ??.
>
> UK: â??Wonâ??t. Canâ??t. Shanâ??tâ??.
>
> Etcetc Finally:
>
> EU: â??You will obeyâ??.
>
> UK: â??OK. We will keep pint glasses (From which we will drink proper beer
> unlike your pallid Europ*ss). We will refer to those glasses as â??pintsâ??
> whilst acknowledging that they contain
>
> 568.261ml litres each.
>
> EU: â??Zut, alors. We surrender. Have some cheeseâ??.
>
> Arenâ??t we all allowed the occasional rant?
>
> Simon
>
>
>
>
>
> From: i erbs <eyera3000@gmail.com>
> Sent: 24 April 2020 02:55
> To: WILLIAM B LAWRENCE <ynotink@msn.com>
> Cc: simon.lachlan@alexarevel.plus.com; Patrick & Caroline Quinn
> <p_cquinn@tpg.com.au>; Healeys <healeys@autox.team.net>
> Subject: Re: [Healeys] Today's Rant
>
>
>
> When the US flirted with metrifying and production when to canada and mexico
> they made standard threaded bolts with metric heads so factories there could
> use metric tools
>
> Ira Erbs
> Portland,OR
> 59 BN4
> 67MGB
> 65 AH Sprite
> phone makes it's own choices. Forgive typos
>
>
>
> On Thu, Apr 23, 2020, 6:17 PM WILLIAM B LAWRENCE <ynotink@msn.com> wrote:
>
> I think you have it backwards. The original GM design would have used the UNC
> thread pattern with a 9/16â?? bolt head. The design predated metrification in
> the US by a few decades. When Rover went metric, sometime in the 80s
> probably, they retained the US standard thread pattern while changing to a
> metric standard bolt head. It would probably have been more costly to retool
> the engine castings to switch to a metric thread pattern.
>
>
>
> Bill Lawrence
>
> BN1 #554
>
> From: i erbs <eyera3000@gmail.com>
> Sent: Thursday, April 23, 2020 7:13 PM
> To: WILLIAM B LAWRENCE <ynotink@msn.com>
> Cc: simon.lachlan@alexarevel.plus.com <simon.lachlan@alexarevel.plus.com>;
> Patrick & Caroline Quinn <p_cquinn@tpg.com.au>; Healeys
> <healeys@autox.team.net>
> Subject: Re: [Healeys] Today's Rant
>
>
>
> Gm did that to rationalize tools as you say, but save money on not converting
> thread and pitch to metric. I had a 87 Olds with that exact situation. But
> also standards bolts heads too in some areas.
>
> Ira Erbs
> Portland,OR
> 59 BN4
> 67MGB
> 65 AH Sprite
> phone makes it's own choices. Forgive typos
>
>
>
> On Thu, Apr 23, 2020, 11:39 AM WILLIAM B LAWRENCE <ynotink@msn.com> wrote:
>
> In the midst of my recent Rover V8 rebuild I was surprised to discover that
> while all of the fasteners used metric wrench sizes many in the short block
> used the UNC thread type ie: a 3/8" coarse bolt with a 13 mm head. I assume
> that Rover simply continued the UNC pattern of the original GM castings and
> changed the head size to simplify tool inventory.
>
>
>
> Bill Lawrence
>
> BN1 #554
>
> From: Healeys <healeys-bounces@autox.team.net> on behalf of
> simon.lachlan@alexarevel.plus.com <simon.lachlan@alexarevel.plus.com>
> Sent: Thursday, April 23, 2020 12:20 AM
> To: 'Patrick & Caroline Quinn' <p_cquinn@tpg.com.au>
> Cc: 'Healeys' <healeys@autox.team.net>
> Subject: Re: [Healeys] Today's Rant
>
>
>
> I have a vague memory of what we called â??Transitional Roversâ?? ie a mix of
> Imperial and Metric. All ¾ tonner long wheel-base. All UK based. They may
> have been peculiar to the army.
>
> Glad I wasnâ??t in REMEâ?¦..they had to maintain them.
>
> Simon
>
>
>
> From: Healeys <healeys-bounces@autox.team.net> On Behalf Of Patrick &
> Caroline Quinn
> Sent: 23 April 2020 00:23
> To: 'David Nock' <healeydoc@gmail.com>; 'Michael MacLean'
> <rrengineer.mike@att.net>
> Cc: 'Healeys' <healeys@autox.team.net>
> Subject: Re: [Healeys] Today's Rant
>
>
>
> Gâ??day
>
>
>
> Not long after I bought my first 100 back in 1972 I turned 21 and one of the
> birthday gifts I received was a set of BSF spanners and sockets. I still have
> them.
>
>
>
> Now I have three sets of tools. BSF for the Healey Saloon. AF for the 100 BN3
> and metric for the Hilux, Mercedes and around the house. There are many
> variations of each for specific purposes.
>
>
>
> Hoo Roo
>
>
>
> Patrick Quinn
>
> Blue Mountains, Australia
>
>
>
> From: Healeys [mailto:healeys-bounces@autox.team.net] On Behalf Of David Nock
> Sent: Wednesday, 22 April 2020 11:59 PM
> To: Michael MacLean
> Cc: Healeys
> Subject: Re: [Healeys] Today's Rant
>
>
>
> All the threads on the 100/4 engine are BSF not Whitworth. Whitworth is a
> coarse thread.
>
> However the wrench sizes are interchangeable. They are one size apart from
> each other.
>
>
>
> The threads on the small plate are 1/4 bsf and the gen bracket is 5/16 bsf.
> Also look close there are some of the studs that go thru into the cooling
> system.
>
> David Nock
>
>
>
> Sent from my iPhone
>
>
>
> On Apr 21, 2020, at 10:18 PM, Michael MacLean <rrengineer.mike@att.net> wrote:
>
> 
>
> So, I am getting ready to install the head on my 100 short block. Made sure
> all the intake valves have the new seals I bought from British Car
> Specialists plus the new set of springs I already had for the valves. The
> two mating surfaces were cleaned with a white (finest grit) Roloc brush. I
> have the correct head gasket (copper faced). Tonight was the night to
> torque the head down to the block. My surprise, for some stupid reason I
> only ordered 8 new head nuts. I managed to order the correct amount of
> washer for the head. No idea what my pea brain was thinking. Also found out
> the head nuts are Whitworth (3/8") size. I have a Whitworth socket set, so
> tragedy averted there. I seem to remember someone talking about the water
> jacket blanking plate earlier this week. That made me look at the front of
> my block. Three studs and an empty hole. No cover. I managed to find two
> blanking covers in my stash of parts and a gasket in my gasket set. Woohoo,
> but no nuts or lock washers. Can someone tell me if these little nuts that I
> do not have are Whitworth nuts. If so, what size? I have a generator
> bracket, but there are no threaded studs for the block or nuts to mount it
> with. Once again, Whitworth? The closer I get to putting this together the
> more stuff I find out I don't have.
>
> Mike MacLean
>
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