Re: 1934 S8 factory water jacket mod?

Posted by Owen_Dyneto On 2013/1/14 8:57:49

I'm aware of that service letter and have seen plenty of 34 water jacket plates but never seen one of the revised form (with the nozzles or spouts as they call them).

The oil cooler mounting on the water jacket is a 1934-only feature; you often see that folks have eliminated the oil cooler and just put a plate over the opening. Not a good idea because if you study the water flow route you'll see that the water has to actually enter the cooler in order to exit into the rest of the jacket plate, at least this is true for the earlier style jacket plate. Blocking off the opening significantly inhibits the water flow thru the jacket.