Parts Information Bulletin, General # 37, Dec. 10, 1948 - re: Steel vs cast iron engine parts

[Eneto-55]

Recently purchased another P15 manual, and this Parts Info Bulletin was stuck in the engine section. The issue is steel vs cast iron engine parts.

 

 

 

 

[Eneto-55]

The only mention I found about steel camshafts was in the topic called “Clothespins not what they used to be?”, where ...
 

On 7/5/2010 at 5:41 PM, Plymouthy Adams said:
Only a steel camshaft will bend, cast iron will break there was a number of steel cams used. The suffix S will be affixed to those engine serial number that indeed came stock with a steel camshaft. The cam bearing supports as close as they are to each other would petty much prevent any bending. A cast cam shaft that is laid at an upright angle would have a tendency to warp due to shift. Only by v-blocking will you be able to detect and measure the runout.

 

Edited February 20 by Eneto-55