Supplemental: Since the transducer is near the flex disk, I'm sure it's the transmission output signal (speed) not, engine RPM. Here's an excerpt from a gasser ETM which shows the tach signal coming from the ignition circuit:
http://Pt709.synology.me/tach.jpg -----Original Message----- From: Mercedes [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Scott Ritchey Sent: Tuesday, May 14, 2013 8:04 PM To: 'Mercedes Discussion List' Subject: Re: [MBZ] Tachometer Amp You know, this looks and reads suspiciously like the speedo, not the tach. -----Original Message----- From: Mercedes [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Jaime Kopchinski Sent: Tuesday, May 14, 2013 7:10 PM To: Mercedes Discussion List Subject: Re: [MBZ] Tachometer Amp Er, that should read, transmitter on the transmission. Right. On Tue, May 14, 2013 at 7:01 PM, Jaime Kopchinski <jaime...@gmail.com>wrote: > Hm... my first reaction was to say the signal comes from the coil, but its > actually different and more complicated. See this: > http://www.startekinfo.com/StarTek/outside/11883/PROGRAM/Chassis/54-252.pdf > > There is a transmission on the transmission, and there are instructions on > how to test it. > > Good luck, > Jaime > > > On Tue, May 14, 2013 at 6:19 PM, Max <meadedil...@bellsouth.net> wrote: > >> Hmmm, doesn't a gasser tachometer get the engine speed signal from the >> distributor? >> -- >> Max Dillon >> Charleston, SC >> '95 E300, '87 300TD, '73 Balboa 20 >> _______________________________________ 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