Machined core plugs

[Tony Press]

Although not original, I thought I would show you the threaded core plugs I made for my '29 cylinder block.


The correct plugs are the domed disc plugs you insert and expand with a dent in the center but sometime in the past  the previous owner had elected to tap these holes for 5/8" BPT plugs which had to be drilled out in order to gain access to the corrosion plugged cooling channels in the block. I got about a cup of rust out of the block.

I modified two modern plugs to resemble the large core plugs already in the block so that they would not look out of place.



Fiddly work but I am pleased at how they turned out.
Stephen

Nice job- originally there were no plugs fitted here and this modification is very useful in keeping the block clean in this area.

Mine are fitted with square  head taper plugs - hopefully easier to remove.

Cheers Tony.

Tony, surprised at you saying that, I have seen numerous blocks with 2 core plugs at each end

Only two (front and back) Cylinder End Plugs BC 14 (with washers BC15) ever listed for the Cylinder monobloc.

The extra plugs are a popular modification  

Cheers, Tony.