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Re: [Spridgets] stupid 1275 head issue

To: Mike Rambour <lists@dinospider.com>
Subject: Re: [Spridgets] stupid 1275 head issue
From: Rick Fisk via Spridgets <spridgets@autox.team.net>
Date: Sat, 30 Jul 2016 22:44:05 -0400
Cc: Spridgets <spridgets@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: spridgets@autox.team.net
References: <5e35a6c0-ba67-9f21-8504-f2143e460180@dinospider.com>
I believe all 1275 heads had this plug from the factory.  The guys on the MG 
Experience forum all recommend removing the old plug, threading the hole, and 
then installing a tapered brass plug available at any hardware store.  Then you 
skim the head.  

Sent from my keyboard

> On Jul 26, 2016, at 5:52 PM, Mike Rambour via Spridgets 
> <spridgets@autox.team.net> wrote:
> 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.
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