[NSRCA-discussion] Engine problem

[Rcmaster199 at aol.com]

Are there end mill bits available with a square central locating shoulder 
built in? Seems that may be the easiet way to get what Earl suggests. Another two 
step approach might be to use drill rod that just fits the hole as the 
locator first, locking the head down in the fixture, then switching to the bit and 
touching the surface to square.

MattK

In a message dated 8/26/2006 1:49:06 PM Eastern Standard Time, 
johnferrell at earthlink.net writes:
I hate to bug Clarence with the problem. Since the engine runs well the only 
real problem is it slobbers on the airplane. 

I have a Lathe and Mill in the shop. Set up will be tricky, the plug is 
pretty deeply recessed. The risk to the threads by using a pilot rod in the hole is 
high.

I believe I will anneal a plug washer and try a little of the liquid gasket 
goo. If that don't solve the problem I will just accept the mess. 

John Ferrell    W8CCW
"My Competition is not my enemy"
http://dixienc.us/

----- Original Message ----- 
From: Earl Haury 
To: NSRCA Mailing List 
Sent: Saturday, August 26, 2006 11:44 AM
Subject: Re: [NSRCA-discussion] Engine problem


John

Assuming that the problem is lack of perpendicularity between the threaded 
hole and the gasket surface - find a "friend" that will set the thing up in a 
mill aligned on the threaded hole, then touch the gasket surface with a mill to 
square. (You might give Clarence a call also - unusual that he would not catch 
this.)

Earl
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