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Brand new Mason 70

Posted by IronChief 
Brand new Mason 70
January 17, 2019 09:32PM
Here is a Mason 70 I just finished restoring, having a new valve cover cast up with the Conrad Motor Carriage name on it as they originally did. Not bad for 120 years old.


Re: Brand new Mason 70
January 18, 2019 03:22AM
Gosh Ron and I'm only 81winking smileysmiling smiley
Re: Brand new Mason 70
January 18, 2019 04:38AM
Very nice Ron...you do nice work!
Re: Brand new Mason 70
January 18, 2019 06:50PM
Thanks, Fellas,

Received the valve cover back from the foundry today. Still have to square up the perimeter and put the holes in it.


Edited 1 time(s). Last edit at 01/18/2019 06:51PM by IronChief.

Re: Brand new Mason 70
January 18, 2019 07:31PM

Immaculate workmanship, as usual. If I didn't know you restored it, I might of thought "Conrad Motor Carriage" was back in business and just opened up a dealership in Michigan.

The packing nuts appear similar to the ones on my old engine...except mine looks like a previous owner took a pipe wrench to them eye popping smiley. I would assume the proper tool is a spanner wrench. Are those set screws original on the Conrad packing nuts...and what kind of packing do you use?


Re: Brand new Mason 70
January 18, 2019 08:56PM

Thanks. The "set screws" are actually holes that something round can be stuck in and used to tighten the gland nut. For packing at these pressure, I just use general purpose square graphite from McMaster carr. I see a lot of chatter about packing, but I must be lucky or something, I just don't have any trouble with packing beyond initial installation and maybe wee bit of adjustment later on. The lower pressures and obviously lower mileage has a lot to do with that. And too it's non condensing so we use copious amounts of oil.

The slots in the nut are actually for a retainer, an L-shaped piece of spring steel that goes in those and keeps it from turning.

Re: Brand new Mason 70
January 19, 2019 04:17PM
Nice work Ron! thumbs up thumbs up thumbs up

- Kyle
Re: Brand new Mason 70
January 19, 2019 07:56PM
Kyle, Thanks

Jamison, see the attached pic that shows the holes and the leaf spring retainers in the slots.


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