<VV> Cam Timing Question

[larry at forman.net]

Hi Frank,
Good question.   The difference is the relatively low and controlled 
instantaneous torque from the starter motor versus the potentially huge 
and uncontrolled instaneous torque when popping the clutch at maybe up 
to 20 to 30 mph.  I am sure you were careful, but not everyone is.  The 
starter motot is geared down by that ring gear, but the momentum is 
large if the car is moving at much speed and the gearing is pretty high 
through the rear end and first gear, if that is used.

Larry

On 2021-07-18 7:51 pm, FrankDuVal via VirtualVairs wrote:

> Why???  Turning the crank by starter or clutch (or torque converter) 
> still is turning the crank.
> 
> I've roll started many a Corvair and other vehicles.
> 
> Frank DuVal
> 
> On 7/18/2021 12:20 PM, larry--- via VirtualVairs wrote:
> 
>> If the engine was push started that could shear the cam key.
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