If you set it to "0", you have only the mark as a reference, which is fine if it is centered in the window. This is what conventional timing lights offer. However, if you use your variable advance feature, you can actually check for the +/- 1 degree tolerance band, maybe even deliberately vary within it. Personally, I'd begin with the "0", and observe where the mark falls, then switch to variable and see if the calibration of your light matches the fixed "calibration" of your flywheel - a good way to get to know your tool [I can hear the responses already... "He said '...get to know your tool.' he he he he!] and its capabilities. Ron ----- Original Message ----- From: "Steve Brunell" <[email protected]> To: <[email protected]> Sent: Tuesday, September 11, 2001 12:07 AM Subject: Basic Question On Setting Ignition Timing
The specification for timing is 6 degrees BDTC +/- 1 degree on my 89 Jetta GLI 16V (1.8L) and there is a "V Groove" timing mark on the flywheel 12 mm to the left of the "O" TDC mark on the flywheel (Bentley manual). My question is that when I set the timing using my new adjustable timing light where I can vary the amount of "advance" in degrees, do I set the light to 6 degrees advance and use the "V Groove" timing mark? Or do I leave the light set to 0 degrees since the timing mark on the flywheel already takes into account the "6 degrees advance" since it is 12 mm to the left of the TDC mark which is indicated by a "O" on the flywheel? _____________ List Sponsor: http://www.netsville.com To remove yourself from this list, send mail to [email protected] with 'unsubscribe a2_16v' in the body of your message See us on the web at http://www.a2-16v.com Visit the 16V Homepage at http://www.gti16v.org _____________ List Sponsor: http://www.netsville.com To remove yourself from this list, send mail to [email protected] with 'unsubscribe a2_16v' in the body of your message See us on the web at http://www.a2-16v.com Visit the 16V Homepage at http://www.gti16v.org
