7 per second * 60 seconds = 420 per minute. Max -- Sent from my Android phone with K-9 Mail. Please excuse my brevity.
Alex Chamberlain <apchamberl...@gmail.com> wrote: On Wed, Aug 17, 2011 at 9:24 AM, Mitch Haley <m...@voyager.net> wrote: > Do you have a digital sound recorder, or a laptop with a microphone in it? > Record it, play it back at reduced speed, and count the compression strokes. > Chugs per second x 20 = rpm on a four stroke six cylinder. > 100rpm would be 5 chugs per second. > Brilliant! I just recorded it on my cell phone, loaded the sound file into Audacity, and counted the peaks. I'm getting seven chugs per second at the start of the cranking operation; after about fifteen seconds of steady cranking it drops rapidly to four. Good battery and starter, then? Alex _____________________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
