Hi guys, The head gasket on my wife's 1998 1.9 Z3 blew between the water jacket and No. 1 cylinder last month, and my next door neighbour who is a rather talented young mechanic has been replacing it for me. He's using the Haynes manual, which is actually the 3 series manual but includes the Z3 and has the engine fully rebuilt and ready to go, however he's come across an oddity: The Haynes manual tells him that the first time starting the engine back up he should immediately hold it at 3500rpm for 20 seconds to lubricate the timing gear, however this goes against all his experience, instinct and basic training as a mechanic... everyone knows you don't run an engine hard straight from cold, especially after major work. So I was wondering if any of you could advise us how to proceed? Obviously we don't want the timing gear not to be lubricated, but equally we don't want the engine damaged by revving it from cold. Have any of you had experience with this, or, I suppose more importantly, have any of you experienced an engine which has been damaged or had problems caused by either carrying out this step or not? Thanks in advance, Pete.