Re: water outlet century plus
Posted: Mon Oct 15, 2012 10:42 pm
And I allways thought that the 1/4" hole in the SD water pump housing was put there by Seagull to make them run a little hotter than they would without it.
Didn't they run a less efficient water pump post war, to save them the cost of drilling this hole & doesn't the water jacket cover the entire cylinder head, unlike the detachable air cooled head on the Centurys & 40's powerheads.
Wasn't this the era before the advent of 2-stroke oil so that they had to run on 30 grade motor oil, with all the problems of oiled & wiskered plugs if they ran too cold
Didn't they run a less efficient water pump post war, to save them the cost of drilling this hole & doesn't the water jacket cover the entire cylinder head, unlike the detachable air cooled head on the Centurys & 40's powerheads.
Wasn't this the era before the advent of 2-stroke oil so that they had to run on 30 grade motor oil, with all the problems of oiled & wiskered plugs if they ran too cold