<VV> Ignition timing question.

[UltraMonzaWest at aol.com]

In a message dated 8/29/2005 6:55:02 PM Pacific Daylight Time, pottsf at msn.com 
writes:

> How can IGNITION timing make it harder to crank an engine. If IGNITION is
> affecting cranking, then the fuel-air mixture is igniting, and the engine is
> RUNNING. Am I missing something?
******************************************************************************
************
Simply put......the ignition of the fuel happens so far ahead of TDC  that 
the ensuing explosion slows the piston as it tries to reach TDC...but 
compression is so low that it doesn't "kickback"...

Try it!   just keep twisting the distributor until it "bucks"      This 
happens ALL  the time in any engine with ignition timing Before TDC....just not as 
pronounced!

so...an engine with 4 deg. BTDC  initial vs. 16 BTDC...will always turn over 
with less cranking amps...during a start attempt.





Matt Nall / Patiomatt / WCUH / Mr. DeckRug
69 Monza Cpe., 66 Monza vert, 65 Crown v8 Cpe.
Somewhere between Reno, NV and Coos Bay, Or.