<div dir="auto">I think they would rather make one type moving forward. Cheaper costs fir them, increased cost fir everyone else.<br><br><div data-smartmail="gmail_signature">Ira Erbs<br>Portland,OR<br>59 BN4<br>67MGB<br>65 AH Sprite<br>phone makes it's own choices. Forgive typos</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Apr 24, 2020, 9:48 AM <a href="mailto:55healey@comcast.net">55healey@comcast.net</a> <<a href="mailto:55healey@comcast.net">55healey@comcast.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I figured it was just an excuse for the wrench manufacturers so they could continue making 2 sets of wrenches.<br>
<br>
> On Apr 24, 2020, at 9:04 AM, i erbs <<a href="mailto:eyera3000@gmail.com" target="_blank" rel="noreferrer">eyera3000@gmail.com</a>> wrote:<br>
> <br>
> Yup,<br>
> The US was going to convert, but busineses and manufacturers raised a storm over the cost to convert, so it never officially happened. <br>
> <br>
> Ira Erbs<br>
> Portland,OR<br>
> 59 BN4<br>
> 67MGB<br>
> 65 AH Sprite<br>
> phone makes it's own choices. Forgive typos<br>
> <br>
> On Fri, Apr 24, 2020, 2:15 AM <<a href="mailto:simon.lachlan@alexarevel.plus.com" target="_blank" rel="noreferrer">simon.lachlan@alexarevel.plus.com</a>> wrote:<br>
> “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……?<br>
> <br>
> 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. <br>
> <br>
> EU: “You must cease drinking pints forthwith. You will obey”.<br>
> <br>
> UK: “Won’t. Can’t. Shan’t”.<br>
> <br>
> Etcetc Finally:<br>
> <br>
> EU: “You will obey”.<br>
> <br>
> 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<br>
> <br>
> 568.261ml litres each.<br>
> <br>
> EU: “Zut, alors. We surrender. Have some cheese”.<br>
> <br>
> Aren’t we all allowed the occasional rant?<br>
> <br>
> Simon<br>
> <br>
> <br>
> <br>
> <br>
> <br>
> From: i erbs <<a href="mailto:eyera3000@gmail.com" target="_blank" rel="noreferrer">eyera3000@gmail.com</a>> <br>
> Sent: 24 April 2020 02:55<br>
> To: WILLIAM B LAWRENCE <<a href="mailto:ynotink@msn.com" target="_blank" rel="noreferrer">ynotink@msn.com</a>><br>
> Cc: <a href="mailto:simon.lachlan@alexarevel.plus.com" target="_blank" rel="noreferrer">simon.lachlan@alexarevel.plus.com</a>; Patrick & Caroline Quinn <<a href="mailto:p_cquinn@tpg.com.au" target="_blank" rel="noreferrer">p_cquinn@tpg.com.au</a>>; Healeys <<a href="mailto:healeys@autox.team.net" target="_blank" rel="noreferrer">healeys@autox.team.net</a>><br>
> Subject: Re: [Healeys] Today's Rant<br>
> <br>
> <br>
> <br>
> 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<br>
> <br>
> Ira Erbs<br>
> Portland,OR<br>
> 59 BN4<br>
> 67MGB<br>
> 65 AH Sprite<br>
> phone makes it's own choices. Forgive typos<br>
> <br>
> <br>
> <br>
> On Thu, Apr 23, 2020, 6:17 PM WILLIAM B LAWRENCE <<a href="mailto:ynotink@msn.com" target="_blank" rel="noreferrer">ynotink@msn.com</a>> wrote:<br>
> <br>
> 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.<br>
> <br>
> <br>
> <br>
> Bill Lawrence <br>
> <br>
> BN1 #554<br>
> <br>
> From: i erbs <<a href="mailto:eyera3000@gmail.com" target="_blank" rel="noreferrer">eyera3000@gmail.com</a>><br>
> Sent: Thursday, April 23, 2020 7:13 PM<br>
> To: WILLIAM B LAWRENCE <<a href="mailto:ynotink@msn.com" target="_blank" rel="noreferrer">ynotink@msn.com</a>><br>
> Cc: <a href="mailto:simon.lachlan@alexarevel.plus.com" target="_blank" rel="noreferrer">simon.lachlan@alexarevel.plus.com</a> <<a href="mailto:simon.lachlan@alexarevel.plus.com" target="_blank" rel="noreferrer">simon.lachlan@alexarevel.plus.com</a>>; Patrick & Caroline Quinn <<a href="mailto:p_cquinn@tpg.com.au" target="_blank" rel="noreferrer">p_cquinn@tpg.com.au</a>>; Healeys <<a href="mailto:healeys@autox.team.net" target="_blank" rel="noreferrer">healeys@autox.team.net</a>><br>
> Subject: Re: [Healeys] Today's Rant<br>
> <br>
> <br>
> <br>
> 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. <br>
> <br>
> Ira Erbs<br>
> Portland,OR<br>
> 59 BN4<br>
> 67MGB<br>
> 65 AH Sprite<br>
> phone makes it's own choices. Forgive typos<br>
> <br>
> <br>
> <br>
> On Thu, Apr 23, 2020, 11:39 AM WILLIAM B LAWRENCE <<a href="mailto:ynotink@msn.com" target="_blank" rel="noreferrer">ynotink@msn.com</a>> wrote:<br>
> <br>
> 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.<br>
> <br>
> <br>
> <br>
> Bill Lawrence<br>
> <br>
> BN1 #554<br>
> <br>
> From: Healeys <<a href="mailto:healeys-bounces@autox.team.net" target="_blank" rel="noreferrer">healeys-bounces@autox.team.net</a>> on behalf of <a href="mailto:simon.lachlan@alexarevel.plus.com" target="_blank" rel="noreferrer">simon.lachlan@alexarevel.plus.com</a> <<a href="mailto:simon.lachlan@alexarevel.plus.com" target="_blank" rel="noreferrer">simon.lachlan@alexarevel.plus.com</a>><br>
> Sent: Thursday, April 23, 2020 12:20 AM<br>
> To: 'Patrick & Caroline Quinn' <<a href="mailto:p_cquinn@tpg.com.au" target="_blank" rel="noreferrer">p_cquinn@tpg.com.au</a>><br>
> Cc: 'Healeys' <<a href="mailto:healeys@autox.team.net" target="_blank" rel="noreferrer">healeys@autox.team.net</a>><br>
> Subject: Re: [Healeys] Today's Rant<br>
> <br>
> <br>
> <br>
> 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.<br>
> <br>
> Glad I wasn’t in REME…..they had to maintain them.<br>
> <br>
> Simon<br>
> <br>
> <br>
> <br>
> From: Healeys <<a href="mailto:healeys-bounces@autox.team.net" target="_blank" rel="noreferrer">healeys-bounces@autox.team.net</a>> On Behalf Of Patrick & Caroline Quinn<br>
> Sent: 23 April 2020 00:23<br>
> To: 'David Nock' <<a href="mailto:healeydoc@gmail.com" target="_blank" rel="noreferrer">healeydoc@gmail.com</a>>; 'Michael MacLean' <<a href="mailto:rrengineer.mike@att.net" target="_blank" rel="noreferrer">rrengineer.mike@att.net</a>><br>
> Cc: 'Healeys' <<a href="mailto:healeys@autox.team.net" target="_blank" rel="noreferrer">healeys@autox.team.net</a>><br>
> Subject: Re: [Healeys] Today's Rant<br>
> <br>
> <br>
> <br>
> G’day<br>
> <br>
> <br>
> <br>
> 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.<br>
> <br>
> <br>
> <br>
> 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.<br>
> <br>
> <br>
> <br>
> Hoo Roo<br>
> <br>
> <br>
> <br>
> Patrick Quinn<br>
> <br>
> Blue Mountains, Australia<br>
> <br>
> <br>
> <br>
> From: Healeys [mailto:<a href="mailto:healeys-bounces@autox.team.net" target="_blank" rel="noreferrer">healeys-bounces@autox.team.net</a>] On Behalf Of David Nock<br>
> Sent: Wednesday, 22 April 2020 11:59 PM<br>
> To: Michael MacLean<br>
> Cc: Healeys<br>
> Subject: Re: [Healeys] Today's Rant<br>
> <br>
> <br>
> <br>
> All the threads on the 100/4 engine are BSF not Whitworth. Whitworth is a coarse thread. <br>
> <br>
> However the wrench sizes are interchangeable. They are one size apart from each other. <br>
> <br>
> <br>
> <br>
> 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. <br>
> <br>
> David Nock<br>
> <br>
> <br>
> <br>
> Sent from my iPhone<br>
> <br>
> <br>
> <br>
> On Apr 21, 2020, at 10:18 PM, Michael MacLean <<a href="mailto:rrengineer.mike@att.net" target="_blank" rel="noreferrer">rrengineer.mike@att.net</a>> wrote:<br>
> <br>
> <br>
> <br>
> 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.<br>
> <br>
> Mike MacLean<br>
> <br>
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</blockquote></div>