[Healeys] Today's Rant
Bob Spidell
bspidell at comcast.net
Fri Apr 24 21:53:18 MDT 2020
... and 2.2 pounds in a 'key.' Honestly, anyone with any
schooling/training in engineering or science is comfortable with both
systems*; well, maybe the 'born-metric' types don't know what a furlong
is (but there's always Google). Read somewhere--Carroll Smith's
'Fasteners' book; aka 'Screw to Win' probably--that the Whitworth thread
design is inherently superior to metric, but I guess that ship has sailed.
* Maybe shouldn't be too comfortable if you're programming rocket launch
trajectories.
Bob
On 4/24/2020 11:51 AM, Michael Oritt wrote:
> Metrification has been a success in the street drug trade: Every
> school kid knows that there are 28 grams in an ounce.
>
> Best--Michael Oritt
>
> On Fri, Apr 24, 2020 at 12:12 PM i erbs <eyera3000 at gmail.com
> <mailto:eyera3000 at 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 at alexarevel.plus.com
> <mailto:simon.lachlan at alexarevel.plus.com>> wrote:
>
> “Flirted”? To tell the truth, I’d never given it much thought
> but had “assumed” that the US had resisted metrification.
> Don’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 “The Grocer” 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: “You must cease drinking pints forthwith. You will obey”.
>
> UK: “Won’t. Can’t. Shan’t”.
>
> Etcetc Finally:
>
> EU: “You will obey”.
>
> UK: “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 “pints” whilst acknowledging that they contain
>
> 568.261ml litres each.
>
> EU: “Zut, alors. We surrender. Have some cheese”.
>
> Aren’t we all allowed the occasional rant?
>
> Simon
>
> *From:*i erbs <eyera3000 at gmail.com <mailto:eyera3000 at gmail.com>>
> *Sent:* 24 April 2020 02:55
> *To:* WILLIAM B LAWRENCE <ynotink at msn.com
> <mailto:ynotink at msn.com>>
> *Cc:* simon.lachlan at alexarevel.plus.com
> <mailto:simon.lachlan at alexarevel.plus.com>; Patrick & Caroline
> Quinn <p_cquinn at tpg.com.au <mailto:p_cquinn at tpg.com.au>>;
> Healeys <healeys at autox.team.net <mailto:healeys at 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 at msn.com <mailto:ynotink at msn.com>> wrote:
>
> I think you have it backwards. The original GM design
> would have used the UNC thread pattern with a 9/16” 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 at gmail.com
> <mailto:eyera3000 at gmail.com>>
> *Sent:* Thursday, April 23, 2020 7:13 PM
> *To:* WILLIAM B LAWRENCE <ynotink at msn.com
> <mailto:ynotink at msn.com>>
> *Cc:* simon.lachlan at alexarevel.plus.com
> <mailto:simon.lachlan at alexarevel.plus.com>
> <simon.lachlan at alexarevel.plus.com
> <mailto:simon.lachlan at alexarevel.plus.com>>; Patrick &
> Caroline Quinn <p_cquinn at tpg.com.au
> <mailto:p_cquinn at tpg.com.au>>; Healeys
> <healeys at autox.team.net <mailto:healeys at 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 at msn.com <mailto:ynotink at 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 at autox.team.net
> <mailto:healeys-bounces at autox.team.net>> on behalf of
> simon.lachlan at alexarevel.plus.com
> <mailto:simon.lachlan at alexarevel.plus.com>
> <simon.lachlan at alexarevel.plus.com
> <mailto:simon.lachlan at alexarevel.plus.com>>
> *Sent:* Thursday, April 23, 2020 12:20 AM
> *To:* 'Patrick & Caroline Quinn' <p_cquinn at tpg.com.au
> <mailto:p_cquinn at tpg.com.au>>
> *Cc:* 'Healeys' <healeys at autox.team.net
> <mailto:healeys at autox.team.net>>
> *Subject:* Re: [Healeys] Today's Rant
>
> I have a vague memory of what we called “Transitional
> Rovers” 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 wasn’t in REME…..they had to maintain them.
>
> Simon
>
> *From:*Healeys <healeys-bounces at autox.team.net
> <mailto:healeys-bounces at autox.team.net>> *On Behalf Of
> *Patrick & Caroline Quinn
> *Sent:* 23 April 2020 00:23
> *To:* 'David Nock' <healeydoc at gmail.com
> <mailto:healeydoc at gmail.com>>; 'Michael MacLean'
> <rrengineer.mike at att.net <mailto:rrengineer.mike at att.net>>
> *Cc:* 'Healeys' <healeys at autox.team.net
> <mailto:healeys at autox.team.net>>
> *Subject:* Re: [Healeys] Today's Rant
>
> G’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 at 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 at att.net
> <mailto:rrengineer.mike at 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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