<html><head><base href="x-msg://108/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>My BN6 has no O-ring, and the BMC workshop manual doesn't show one. </div><div><br></div><div><br></div><br><div><div>On Jan 26, 2015, at 3:19 PM, John Rowe wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div lang="EN-AU" link="blue" vlink="purple"><div class="WordSection1" style="page: WordSection1; "><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">I am thinking that would BMC engineering in those days be so sophisticated that they would be worried about .004” to .010”. Judging from what I have seen over the years, I doubt it. IIRC, I used a grey silicone as a sealer- works ok for me.<o:p></o:p></span></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">John Rowe<o:p></o:p></span></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Qld Australia<o:p></o:p></span></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">BN1 BT7<o:p></o:p></span></div><div style="border-right-style: none; border-bottom-style: none; border-left-style: none; border-width: initial; border-color: initial; border-top-style: solid; border-top-color: rgb(181, 196, 223); border-top-width: 1pt; padding-top: 3pt; padding-right: 0cm; padding-bottom: 0cm; padding-left: 0cm; "><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><b><span lang="EN-US" style="font-size: 10pt; font-family: Tahoma, sans-serif; ">From:</span></b><span lang="EN-US" style="font-size: 10pt; font-family: Tahoma, sans-serif; "><span class="Apple-converted-space"> </span>Healeys [mailto:healeys-bounces@autox.team.net]<span class="Apple-converted-space"> </span><b>On Behalf Of<span class="Apple-converted-space"> </span></b>Michael Salter<br><b>Sent:</b><span class="Apple-converted-space"> </span>Tuesday, 27 January 2015 7:46 AM<br><b>To:</b><span class="Apple-converted-space"> </span>Steve B. Gerow<br><b>Cc:</b><span class="Apple-converted-space"> </span><a href="mailto:healeys@autox.team.net" style="color: blue; text-decoration: underline; ">healeys@autox.team.net</a><br><b>Subject:</b><span class="Apple-converted-space"> </span>Re: [Healeys] Rear axle gasket question<o:p></o:p></span></div></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><o:p> </o:p></div><div><div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-family: 'Comic Sans MS'; ">Well you may be over thinking it but you are at least keeping us amused :-)<o:p></o:p></span></div></div><div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-family: 'Comic Sans MS'; ">BTW the BN1, BN2 and 100S didn't have the "O" ring seal so I think in their cases the gasket was the seal..<o:p></o:p></span></div></div><div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-family: 'Comic Sans MS'; ">Pooffff goes that theory..<o:p></o:p></span></div></div><div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-family: 'Comic Sans MS'; ">Michael S<o:p></o:p></span></div></div><div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-family: 'Comic Sans MS'; ">BN1 #174<o:p></o:p></span></div></div><div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><span style="font-family: 'Comic Sans MS'; "><o:p> </o:p></span></div></div></div><div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><o:p> </o:p></div><div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; ">On Mon, Jan 26, 2015 at 4:36 PM, Steve B. Gerow <<a href="mailto:steveg@abrazosdata.com" target="_blank" style="color: blue; text-decoration: underline; ">steveg@abrazosdata.com</a>> wrote:<o:p></o:p></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; ">The whole idea of the gasket-as-shim has a certain logic to it - except the o-ring does the actual sealing, correct?<br><br>Is this the idea: when we tighten the lug nuts, we compress the gasket from, say .014" to .010". At .010, the axle center makes contact with the spacer ring and bearing, coming to a stop. There is then .010" between the carrier and axle flange. The gasket takes up the slack - is the compressed gasket strong enough to in effect be a shim between these two parts?<br><br>Michael - maybe when extra-tightening of the lug nuts, the axle flange is also bending slightly to take up this gap.<br><br>Betcha I'm over-thinking this! :-)<br><br><br><br>--<br>Steve Gerow<br><br><br><br>> -------Original Message-------<br>> From: Michael Salter <<a href="mailto:michaelsalter@gmail.com" style="color: blue; text-decoration: underline; ">michaelsalter@gmail.com</a>><br>> To: Steve B. Gerow <<a href="mailto:steveg@abrazosdata.com" style="color: blue; text-decoration: underline; ">steveg@abrazosdata.com</a>><br>> Cc:<span class="Apple-converted-space"> </span><a href="mailto:warthodson@aol.com" style="color: blue; text-decoration: underline; ">warthodson@aol.com</a><span class="Apple-converted-space"> </span><<a href="mailto:warthodson@aol.com" style="color: blue; text-decoration: underline; ">warthodson@aol.com</a>>,<span class="Apple-converted-space"> </span><a href="mailto:simon.lachlan@homecall.co.uk" style="color: blue; text-decoration: underline; ">simon.lachlan@homecall.co.uk</a>,<span class="Apple-converted-space"> </span><a href="mailto:healeys@autox.team.net" style="color: blue; text-decoration: underline; ">healeys@autox.team.net</a><br>> Subject: Re: [Healeys] Rear axle gasket question<br>> Sent: Jan 26 '15 11:28<br>><br>> One other observation on this subject.<br>><br>><br>> This is, I believe, the only place on a Healey where 'conical" seat nuts<br>> are used.<br>> It has been my experience that conical seat nuts always require re-torquing<br>> after a little use. Just like the lug nuts on your every day driver if<br>> you torque them up, then drive the car for a bit you will find that the<br>> nuts will take up to half a turn just to restore them to the original<br>> torque.<br>><br>><br>> That said however I do have to agree with Chris regarding aggressive use.<br>> On AHX12 we found it necessary to re-torque those nuts after every day of<br>> competition and they would always go on an additional flat or so.. I always<br>> wondered where that extra tightening room came from because after a week of<br>> Targa Newfoundland we would have tightened the nuts at least one full turn<br>> ... that's 0.055".<br>><br>><br>> I "forgot" to mention to co-driver Michael O that a likely cause was<br>> stretching of the studs..:-).<br>><br>><br>> Michael S<br>> [LINK:<span class="Apple-converted-space"> </span><a href="http://www.acmefluid.com.au/larry/ahx12.html" target="_blank" style="color: blue; text-decoration: underline; ">http://www.acmefluid.com.au/larry/ahx12.html</a>]<br>> <span class="Apple-converted-space"> </span><a href="http://www.acmefluid.com.au/larry/ahx12.html" target="_blank" style="color: blue; text-decoration: underline; ">http://www.acmefluid.com.au/larry/ahx12.html</a><br>><br>><br>> On Mon, Jan 26, 2015 at 12:25 PM, Steve B. Gerow <[LINK:<br>> mailto:<a href="mailto:steveg@abrazosdata.com" style="color: blue; text-decoration: underline; ">steveg@abrazosdata.com</a>]<span class="Apple-converted-space"> </span><a href="mailto:steveg@abrazosdata.com" style="color: blue; text-decoration: underline; ">steveg@abrazosdata.com</a>> wrote:<br>> Some observations:<br>> New Moss gasket - .014"<br>> Old gasket originally coated with Hylomar, as removed from axle - .010"<br>><br>> .004" = copier paper<br>><br>> My axle is buttoned up with a new gasket and the rear rotor/caliper back<br>> in place or I'd try to do a science project here.<br>><br>> For a gasket thickness, perhaps if one were to bolt the assembly together<br>> without gasket and measure the gap with shims, then add .003" to that.<br>><br>> The new bearing, assembled with heat and cold per Tom Monaco's<br>> instructions, is a tight fit in the carrier and axle - IIRC the bearing<br>> depends on this more than the compression of the spacer, gasket, etc.<br>><br>><br>> --<br>> Steve Gerow<br>> Altadena, CA<br>> BN6<br>><br>><br>> > -------Original Message-------<br>> > From: [LINK: mailto:<a href="mailto:warthodson@aol.com" style="color: blue; text-decoration: underline; ">warthodson@aol.com</a>]<span class="Apple-converted-space"> </span><a href="mailto:warthodson@aol.com" style="color: blue; text-decoration: underline; ">warthodson@aol.com</a><br>> > To: [LINK: mailto:<a href="mailto:simon.lachlan@homecall.co.uk" style="color: blue; text-decoration: underline; ">simon.lachlan@homecall.co.uk</a>]<br>> <span class="Apple-converted-space"> </span><a href="mailto:simon.lachlan@homecall.co.uk" style="color: blue; text-decoration: underline; ">simon.lachlan@homecall.co.uk</a>, [LINK: mailto:<a href="mailto:steveg@abrazosdata.com" style="color: blue; text-decoration: underline; ">steveg@abrazosdata.com</a>]<br>> <span class="Apple-converted-space"> </span><a href="mailto:steveg@abrazosdata.com" style="color: blue; text-decoration: underline; ">steveg@abrazosdata.com</a>, [LINK: mailto:<a href="mailto:healeys@autox.team.net" style="color: blue; text-decoration: underline; ">healeys@autox.team.net</a>]<br>> <span class="Apple-converted-space"> </span><a href="mailto:healeys@autox.team.net" style="color: blue; text-decoration: underline; ">healeys@autox.team.net</a><br>> > Subject: Re: [Healeys] Rear axle gasket question<br>> > Sent: Jan 26 '15 08:41<br>> ><br>> > I have not tried it but I doubt it. On the three axles I have actual<br>> > experience with the gasket needed to be Approx. 0.004" thick so that<br>> the<br>> > spacer met the specified tolerances in the workshop manual. The<br>> gaskets I<br>> > purchased were all approx. 0.010" thick. That would be a lot of<br>> squish. You<br>> > would have to squish it without the bearing spacer in place. Then<br>> remove<br>> > the axle & measure how much the spacer stood proud of the gasket. Then<br>> > reassemble everything, if it met spec. It seemed easier to just make a<br>> > gasket of the proper thickness.<br>> ><br>> > Gary Hodson<br>> ><br>> ><br>> > From: Simon Lachlan <[LINK: mailto:<a href="mailto:simon.lachlan@homecall.co.uk" style="color: blue; text-decoration: underline; ">simon.lachlan@homecall.co.uk</a>]<br>> <span class="Apple-converted-space"> </span><a href="mailto:simon.lachlan@homecall.co.uk" style="color: blue; text-decoration: underline; ">simon.lachlan@homecall.co.uk</a>><br>> > Subject: RE: [Healeys] Rear axle gasket question<br>> ><br>> ><br>> > If you soaked the too big gaskets in, say, WD40, wouldn’t they<br>> compress<br>> > down to a proper size as you tightened up?<br>> ><br>> > Just a thought..............<br>> ><br>> > Simon<br>> _______________________________________________<br>> Support<span class="Apple-converted-space"> </span><a href="http://Team.Net" style="color: blue; text-decoration: underline; ">Team.Net</a><span class="Apple-converted-space"> </span>[LINK:<span class="Apple-converted-space"> </span><a href="http://www.team.net/donate.html" target="_blank" style="color: blue; 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">http://autox.team.net/mailman/options/healeys/michaelsalter@gmail.com</a>]<o:p></o:p></div><div><div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; ">> <span class="Apple-converted-space"> </span><a href="http://autox.team.net/mailman/options/healeys/michaelsalter@gmail.com" target="_blank" style="color: blue; text-decoration: underline; ">http://autox.team.net/mailman/options/healeys/michaelsalter@gmail.com</a><br>><br>><br>> --<br>><br>><br>> If you can't fix it with a hammer, you've got an electrical problem.<o:p></o:p></div></div></div></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><br><br clear="all"><br>--<o:p></o:p></div><div><div><div><div><p class="MsoNormal" style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 12pt; font-size: 12pt; font-family: 'Times New Roman', serif; "><i><span style="color: black; ">If you can't fix it with a hammer, you've got an electrical problem.</span></i><o:p></o:p></p></div></div></div></div></div></div>_______________________________________________<br>Support<span class="Apple-converted-space"> </span><a href="http://Team.Net" style="color: blue; text-decoration: underline; ">Team.Net</a><span class="Apple-converted-space"> </span><a href="http://www.team.net/donate.html" style="color: blue; text-decoration: underline; ">http://www.team.net/donate.html</a><br>Suggested annual donation $12.75<br>Archive:<span class="Apple-converted-space"> </span><a href="http://www.team.net/archive" style="color: blue; text-decoration: underline; ">http://www.team.net/archive</a><br>Forums:<span class="Apple-converted-space"> </span><a href="http://www.team.net/forums" style="color: blue; text-decoration: underline; ">http://www.team.net/forums</a><br><br><a href="mailto:Healeys@autox.team.net" style="color: blue; text-decoration: underline; 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