[Healeys] Sealants and fasteners

Sun May 31 12:48:39 MDT 2020

I also have three kinds of wrenches and many times discover I need something I don't have. I've actually had to replace all my tools and other stuff because of the fire I went through, but that's another story. As to the bolts going in through the tappet cover, there are no nuts on those and they go right into the block. I thought I had them all measured out, and the bolts laid out correctly for re-install, but I still ran into problems but eventually got them all back in and flush. 
   The reason I am using "The Right Stuff" is from two mechanics recommending it. And I am laying down a bead about the size of a BB so hopefully if I ever have to remove the tappet cover, I'll have a reasonable chance of completing the task. I would not use "The RS" on my oil pan, nor would I use it on a rocker cover. Gaskets there with heat capable silicone on one side and oil on the other works for me.
   Thanks for the list of fasteners. That just might come in handy. Appreciate it.
   I thought I was just going to be able to hone my cylinders, put the new rings back on the pistons and move on, but alas, after some measuring and calculations from someone who actually knows what they are doing, it was discovered my engine was actually producing over 11 to 1 compression! Now if I could get 100 plus octane anywhere I go, I might be happy with that. But with the fact that this engine would run on when shut off, and not wanting to constantly add octane booster with each tank of gas, I decided to get new pistons and bring the compression down to a reasonable amount. 
   I'm learning as I go, making some mistakes here and there, learning constantly, but figuring I can do this. I've got the time and the curiosity, mix that with some basic knowledge, I'm moving forward. Stay tuned as the engine will be out soon and off to the machine shop to get bored and honed to spec. Then the re-assemble shall commence, followed by the installation back into my car, followed closely by the first attempt at actually starting it up again! Scary, but hey, why not?!
Steven Kingsbury 

On May 31, 2020 at 11:25 AM, gradea1 at charter.net wrote:

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).

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.

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!
Hank, healeyhelper.com

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From: "Steven Kingsbury via Healeys"
To: "rrengineer.mike at att.net"
Cc: "Healeys"
Sent: Sunday May 31 2020 8:54:04AM
Subject: Re: [Healeys] Sealants

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. 
   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! 
Steven Kingsbury
BN1 on the way to recovery.

On May 31, 2020 at 2:01 AM, Michael MacLean <rrengineer.mike at att.net> wrote:

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.
Mike MacLean

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