[Spridgets] stupid 1275 head issue

[crusaderchuck55@aol.com]

    When doing race motors we always tapped the hole , threaded in a plug and then milled it to true the gasket surface.  Chuck
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------ Original message------From: Mike Rambour via SpridgetsDate: Sat, Jul 30, 2016 8:51 PMTo: Spridgets;Subject:[Spridgets] stupid 1275 head issue
  Ok, I am finalizing my 1275 build and found that I did not have a head gasket leak, what I had was a stupid bronze/brass plug between the #2 and #3 cylinders that is a tiny bit recessed and also leaking.  When I soaked the head in the solvent tank, I could see solvent oozing past the plug so it needs to be replaced.  I have never seen a head with a plug, my first thought is that it was butchered by previous owner(s) but i have been googling and found it was common on the 1275's which explains why I never saw one, this is my first 1275.  So what is the best repair ? I can get it out and machine a new one to press in, that won't be a problem but I foresee the same problem in the future.  I would be scared to try taking it out and threading the head myself and I think I would send it out for the threading part or is it pretty easy ?  I read on one web site where the guy drove a screw through the plug all the way through to the other side of the water jacket (not through the jacket just touching it) to keep it from recessing again.  I would not do that but could easily machine a plug with "stub" on it that would rest on the water jacket to keep it from recessing again.  I have a lathe and mill but I am not a machinist, I tend to make more shavings than usable parts, I don't mind making a plug and skimming the head but threading cast iron myself seems like asking for trouble, but maybe its not if the head is thick enough.   Mike-- A gun is like a parachute, if you need one but don't have it,you'll probably never need one again.------------------------spridgets at autox.team.netDonate: http://www.team.net/donate.htmlSuggested annual donation: $12.75Archive: http://www.team.net/archiveForums: http://www.team.net/forumsUnsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/crusaderchuck55@aol.com
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