TC cylinder head plugs

PostPost by: HCA » Sun Jul 05, 2020 7:21 pm

rgh0 wrote:Just came across this old photo ( it came up in a reference on another post) I have of a scanned head section that actually shows the plug. Thread in head does look parallel !

Full scale head section 1 resized.jpg


cheers
Rohan


You certainly have it all at your fingertips Rohan!
thanks. I tried again this morning andwill resort to a re-tap. What ever is left in there is well and truly metallurgically joined to the casting if that is indeed possible :)
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PostPost by: HCA » Thu Oct 08, 2020 2:08 pm

Back on this one again (I have taken a few weeks off the Elan to enjoy the late summer weather in the Evora! )

I did get the old plug out, but many of the old threads suffered, so it is a head off job and weld a new boss onto it.

Before I take this action, is there anything peculiar about the head that a good welder cannot weld on a new ally thread boss..?
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