<html><body>Soon after I owned a Healey 100, I equipped my tool box with three kinds of wrenches: normal SAE, Metric and BS/Whitworth. This combination will handle any size nut or bolt on the car (oops, I also needed a set of BA wrenches for the small stuff).<div><br></div><div>So, with all this talk of what fastener-British or American (Unified)?...I went to the Austin Service Journal Volume 25 and have included this info which may help you in fitting nuts and bolts to your 100. If you use the Austin Parts List manual (#1050) you will note that the BSF nuts and bolts and studs all have a part number starting with 2K...for instance front engine support bolts 2K5946 and nuts 2K3977. These are BSF fasteners. When the agreed change was made to unified (about Sept.1954 they started using them, after first using up all they had of British items), the part numbers became something like HBZ0512. These are Unified Fasteners. I copied about 5 pages from this volume-attached FYI- but you can find this whole volume 25 published on the internet.</div><div><br></div><div>You will note that the letters describe the size, length, thread pitch and type of material its made of so you can replace the parts with the exact same item. If you thread a nut onto the bolt, and it only goes on about three threads, you probably have mixed UNF with BSF. Better check the charts and parts book!</div><div>Hank, healeyhelper.com<br><br><div class="reply-new-signature"></div><p>-----------------------------------------</p>From: "Steven Kingsbury via Healeys" <healeys@autox.team.net><br>To: "rrengineer.mike@att.net"<br>Cc: "Healeys"<br>Sent: Sunday May 31 2020 8:54:04AM<br>Subject: Re: [Healeys] Sealants<br><br><div>When I put my tappet cover back on, I'm going to use "The Right Stuff" and no gasket. A simple bead all around the cover, making sure to go around the holes for the bolts with a touch of red lock tite on the threads. Also, make sure you pre-install every bolt as they are different depths in the receiving holes. I thought I had it right, but then I had to move a few around to get them to go in the correct amount. </div><div> I have to do it again, (long story), but this time the engine will be out, I will take my time and I am now fore armed with the information. Best of luck! </div><div>Steven Kingsbury</div><div>BN1 on the way to recovery.</div><div><br>On May 31, 2020 at 2:01 AM, Michael MacLean <rrengineer.mike@att.net> wrote:<br><br></div><div><blockquote type="cite"><div class="msg-quote">Finally got the Denis Welch tappets today after almost an entire month. Woohoo. Now comes the part where I button up this side of the engine. Where are the most leaks on this side of the engine? What should I use on the gasket for the tappet cover to seal it? How about the angle drive? Seal that or just crank it down OK? Once this engine is together I would like to not have to take it apart again for leaks.<div id="yMail_cursorElementTracker_1590898312612">Mike MacLean<div class="yahoo-compose-assist-image-card ymail-android-inline-img-container ymail-card"><br></div><br><br><div id="yMail_cursorElementTracker_1590898262089"><br><div id="ymail_android_signature"><a id="ymail_android_signature_link" href="https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature" data-mce-href="https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature">Sent from AT&T Yahoo Mail on Android</a></div></div></div><div class="_stretch"><span class="body-text-content">_______________________________________________<br>Support <a href="http://Team.Net" data-mce-href="http://Team.Net">Team.Net</a> <a href="http://www.team.net/donate.html" data-mce-href="http://www.team.net/donate.html"></a><a href="http://www.team.net/donate.html" target="_blank">http://www.team.net/donate.html</a><br>Suggested annual donation $12.75<br><br>Archive: <a href="http://www.team.net/pipermail/healeys" data-mce-href="http://www.team.net/pipermail/healeys"></a><a href="http://www.team.net/pipermail/healeys" target="_blank">http://www.team.net/pipermail/healeys</a> <a href="http://autox.team.net/archive" data-mce-href="http://autox.team.net/archive"></a><a href="http://autox.team.net/archive" target="_blank">http://autox.team.net/archive</a><br><br><a href="mailto:Healeys@autox.team.net" data-mce-href="mailto:Healeys@autox.team.net">Healeys@autox.team.net</a><br><a href="http://autox.team.net/mailman/listinfo/healeys" data-mce-href="http://autox.team.net/mailman/listinfo/healeys"></a><a href="http://autox.team.net/mailman/listinfo/healeys" target="_blank">http://autox.team.net/mailman/listinfo/healeys</a><br><br>Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/healeys/airtightproductions@icloud.com" data-mce-href="http://autox.team.net/mailman/options/healeys/airtightproductions@icloud.com"></a><a href="http://autox.team.net/mailman/options/healeys/airtightproductions@icloud.com" target="_blank">http://autox.team.net/mailman/options/healeys/airtightproductions@icloud.com</a><br><br></span></div></div></blockquote></div></healeys@autox.team.net></div></body></html>