18-02-2018, 06:12 PM
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
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