[Healeys] Cam and crank gear timing update

[warthodson at aol.com]

I understand the statement below, but I am not familiar with the term "on the
rock". Does anyone know the origin & exactly what does it refer to?
Gary Hodson


-----Original Message-----
From: WILLIAM B LAWRENCE <ynotink at msn.com>
Subject: Re: [Healeys] Cam and crank gear timing update

A point of clarification: when you set the camshaft to "on the rock" on the
number four cylinder you are setting it so that both of  the valves on number
four are closed. In other words you are setting it so that number four
cylinder is on the compression stroke.
Bill Lawrence
BN1 #554