essex core plug

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Re: essex core plug

Post by Coupe Racing » Wed Jun 05, 2013 11:02 am

Not tried one externally - as you cant tap it round like all the others as the cam is in the way.

Is the engine complete or stripped as removing the cam with the heads on is tricky - but it can be done.

As most cams have a small indent in the end - maybe try a tiny hole in the very centre of the core plug - wind in by one or two threads - a course self tapper , and a small slide hammer could pull it out I recon


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Re: essex core plug

Post by Beefy » Tue Nov 10, 2015 9:23 pm

Hi, I've just finished assembling the cylinder heads for the right hand rear cylinder head core plug to pop out after running up the engine! It's was all going so well, it had been upto temp for 30 mins 3 times. Anyway just wondering which size core plug it is? I suspect it is the 1 1/4" plug?
Then comes the fun part of fitting it with the head still fitted.
Any help much appreciated.
Lloyd



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Re: essex core plug

Post by scimjim » Tue Nov 10, 2015 10:21 pm

It's one of the small ones - same as the front ones as the heads fit either side.


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Re: essex core plug

Post by Coupe Racing » Wed Nov 11, 2015 9:29 am

Fairly easy
Look for the threaded holes in each end of the head and use these to compress a bar across a new plug and ease it in
I always insert my plugs a little deeper than flush by a few mm


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Re: essex core plug

Post by Beefy » Wed Nov 11, 2015 2:30 pm

Thanks for the advice guys, it was dark so couldn't see too much with the mirror and steam! There being threaded holes make life easier!
Thanks again Lloyd



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Re: essex core plug

Post by teecee » Mon Dec 07, 2015 6:22 pm

Weld a short bolt to the middle of any core plug and then use a small crow bar or jemmy to drag it out, works every time for me. On reassembly clean up the hole with a strip of emery and I use locktite bearing fit round the plug, tap it in until its flush using a socket that just fits inside the plug.

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Re: essex core plug

Post by Coupe Racing » Wed Dec 09, 2015 6:14 am

The cam has a small centring hole behind the core plug
It's a possibility that you could drill a small hole in the core plug and thread a bolt into the plug to push against the cam to remove the plug

Or if the cam is removed just use a long shaft and tap it out


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