Sunday, 21 November 2021

FH Dry Build - Barrel and Head

After completing the primary case installation, I moved on to the head and barrel. This was pretty straightforward, and I retained the head and barrel in place with a couple of bolts each, though the threads will need cleaning up when I rebuild the engine.


The main purpose of this step is to establish fixing points for the exhaust, carburetter and head steadies. The head steadies fit to two of the downward facing rocker box studs and its clear that the existing ones are fretted quite badly and will need replacing.

Secondly, the kit of parts I bought all those years ago included a brand new Amal Concentric Mk1 928 carburetter so it will be interesting to see how that performs - it will be a new experience for me. The FH was intended to have two bolts holding the carburetter in place, but unfortunately the large tickler fitted to the 928 prevents one of the bolts going in - it will need a couple of studs making up or I could use the 5/16" CEI x 1 1/16" stud specified by Ariel for the iron head singles under part number 0183. 



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