Re: Std 8 engine rebuild - 1929 or 1936?

Posted by Peter Packard On 2012/8/28 23:54:47

On the 5th Series ( 4.85 to 1 Comp ratio) I put plasticine onto the valve heads and rotated the engine to gauge the valve to head clearance. I was able to easily take 100 thou from the head ( probably around 6 to 1 comp now). I did the same with my 38 Six. I also took 100 thou from the low comp (10mm plugs) 288 head which I fitted to my 38 Richards with the 54 327 motor. I am not happy with the early head on the 54 motor and am going to fit a 54- 327 ( AT) head, the first time that I have to remove the head.
I would never touch a Twelve or 384 Super head unless I really had to as they not readily available. I have a few spares of the others laying around.