Re: [MBZ] '87 30TD rev counter.

2015-07-15 Thread Jim Cathey via Mercedes
my new sensor did not fix the flaky KLIMA belt-saving feature) Is its feature-ness less quotable if it's correctly described as an engine-saver, rather than a belt-saver? This feature not only saved the belt, and thus perhaps the engine on the 190D when the compressor seized, but it saved the

Re: [MBZ] '87 30TD rev counter.

2015-07-14 Thread Curly McLain via Mercedes
Hmmm Did you mean to say something? OK Don NSA: The only branch of government that actually listens to US citizens! *Travel is fatal to prejudice, bigotry and narrow-mindedness, and many of our people need it sorely on these accounts.* - Mark Twain There are three kinds of men: The ones

Re: [MBZ] '87 30TD rev counter.

2015-07-14 Thread OK Don via Mercedes
Well, yes. Where did it go? This sounds like a flaky ground, probably in the instrument cluster. That's what I meant to say . . . On Tue, Jul 14, 2015 at 2:20 PM, Curly McLain via Mercedes mercedes@okiebenz.com wrote: Hmmm Did you mean to say something? -- OK Don NSA: The only branch of

Re: [MBZ] '87 30TD rev counter.

2015-07-14 Thread Curly McLain via Mercedes
My ground is flaky or someone else's? your ground has cat poop, your view is flaky (Sorry, couldn't resist) All in good fun ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go

Re: [MBZ] '87 30TD rev counter.

2015-07-14 Thread Andrew Strasfogel via Mercedes
So do I have to R/R the cluster to fix the poopy ground? On Tue, Jul 14, 2015 at 3:54 PM, Curly McLain via Mercedes mercedes@okiebenz.com wrote: My ground is flaky or someone else's? your ground has cat poop, your view is flaky (Sorry, couldn't resist) All in good fun

Re: [MBZ] '87 30TD rev counter.

2015-07-14 Thread Andrew Strasfogel via Mercedes
My ground is flaky or someone else's? On Tue, Jul 14, 2015 at 3:35 PM, OK Don via Mercedes mercedes@okiebenz.com wrote: Well, yes. Where did it go? This sounds like a flaky ground, probably in the instrument cluster. That's what I meant to say . . . On Tue, Jul 14, 2015 at 2:20 PM, Curly

Re: [MBZ] '87 30TD rev counter.

2015-07-14 Thread Andrew Strasfogel via Mercedes
The 85 is fine. Of course I know the difference On Tue, Jul 14, 2015 at 8:01 PM, fmiser via Mercedes mercedes@okiebenz.com wrote: Andrew wrote: My W123 tach is also going wacky - acts the same even when I swap the under-hood sensor. Oscillates, goes to zero, generally misbehaves.

Re: [MBZ] '87 30TD rev counter.

2015-07-14 Thread fmiser via Mercedes
Andrew wrote: My W123 tach is also going wacky - acts the same even when I swap the under-hood sensor. Oscillates, goes to zero, generally misbehaves. Used to work great so I am thinking it has to be the sensor and NOT the PU unit that screws into the tach chassis housing. Maybe I

Re: [MBZ] '87 30TD rev counter.

2015-07-13 Thread Fred Moir via Mercedes
: Mon, 13 Jul 2015 08:43:40 -0400 To: mercedes@okiebenz.com Subject: Re: [MBZ] '87 30TD rev counter. From: mercedes@okiebenz.com CC: dillonm...@gmail.com Fred, The two pin connector for the tachometer sensor is, as Peter said, behind engine. I'm pretty sure it is passenger side, between

Re: [MBZ] '87 30TD rev counter.

2015-07-13 Thread Curly McLain via Mercedes
connectors in line.Spelunking begin! Thanks for all of the info and helpful suggestions, you guys are great! Fred Moir.Lynn MA.Diesel preferred. Date: Mon, 13 Jul 2015 08:43:40 -0400 To: mercedes@okiebenz.com Subject: Re: [MBZ] '87 30TD rev counter. From: mercedes@okiebenz.com CC: dillonm

Re: [MBZ] '87 30TD rev counter.

2015-07-13 Thread Scott Ritchey via Mercedes
a wet bilge. -Original Message- From: Mercedes [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Curly McLain via Mercedes Sent: Monday, July 13, 2015 10:36 AM To: Mercedes Discussion List Cc: Curly McLain Subject: Re: [MBZ] '87 30TD rev counter. Sounds like someone hacked

Re: [MBZ] '87 30TD rev counter.

2015-07-13 Thread Fred Moir via Mercedes
MA.Diesel preferred. Date: Mon, 13 Jul 2015 09:35:49 -0500 To: mercedes@okiebenz.com Subject: Re: [MBZ] '87 30TD rev counter. From: mercedes@okiebenz.com CC: 126die...@gmail.com Sounds like someone hacked it or the connector caused problems before. sounds like cutting out and replacing

Re: [MBZ] '87 30TD rev counter.

2015-07-13 Thread Max Dillon via Mercedes
Fred, Check the price for a new sensor, I think I paid about $30 for MB real deal, but that was ten years ago. They rarely go bad (my new sensor did not fix the flaky KLIMA belt-saving feature) so junk yard source should also be viable. Nothing special about the sensor, probably used in

Re: [MBZ] '87 30TD rev counter.

2015-07-13 Thread Max Dillon via Mercedes
Fred, The two pin connector for the tachometer sensor is, as Peter said, behind engine. I'm pretty sure it is passenger side, between battery and HVAC/windshield wiper box. If you follow wire from sensor, should be about three feet to get to the connector. Sensor is driver side, near

Re: [MBZ] '87 30TD rev counter.

2015-07-12 Thread Peter Frederick via Mercedes
No, that one is for diagnostics, specifically setting the injection timing with the dynamic tool. The one for the idle speed/tach is on the rear of the engine reading off the flywheel. Peter ___ http://www.okiebenz.com To search list archives

Re: [MBZ] '87 30TD rev counter.

2015-07-12 Thread Curly McLain via Mercedes
Ok, thanks. Is the Hall effect sensor for the OM603 located on the front of the engine with the magnet on crankshaft damper as on the OM617/616? The connector that attaches the tail from the sensor to the harness. It's exposed and corrodes, resulting in poor transmission of the signal

Re: [MBZ] '87 30TD rev counter.

2015-07-12 Thread Curly McLain via Mercedes
Are you talking about the engine to body ground strap, or a different connector? The connector behind the engine is usually the one that gets corroded. Mine comes and goes, along with the idle speed control, and I suppose I should get in there and clean that connector sometime. Peter

Re: [MBZ] '87 30TD rev counter.

2015-07-12 Thread Peter Frederick via Mercedes
The connector behind the engine is usually the one that gets corroded. Mine comes and goes, along with the idle speed control, and I suppose I should get in there and clean that connector sometime. Peter ___ http://www.okiebenz.com To search list

Re: [MBZ] '87 30TD rev counter.

2015-07-12 Thread Peter Frederick via Mercedes
The connector that attaches the tail from the sensor to the harness. It's exposed and corrodes, resulting in poor transmission of the signal (which is not voltage, but a pulse generated by the Hall Effect pickup). The result is first an erratic tachometer/idle speed control, followed by

Re: [MBZ] '87 30TD rev counter.

2015-07-11 Thread Fred Moir via Mercedes
Dan.Thanks for the reply.I'm looking for the point at which the various consumers of tach. info diverge.Trying to cut the problem into smaller parts.Fred Fred Moir.Lynn MA.Diesel preferred. Date: Sat, 11 Jul 2015 19:26:27 -0400 To: mercedes@okiebenz.com Subject: Re: [MBZ] '87 30TD rev

Re: [MBZ] '87 30TD rev counter.

2015-07-11 Thread Dan Penoff via Mercedes
Don’t know about 87s, but earlier models had issues with electrolytic caps in the tach that dried out. Have you popped the cluster and taken a look around? Dan On Jul 11, 2015, at 7:17 PM, Fred Moir via Mercedes mercedes@okiebenz.com wrote: Calling all genii.My 1987 300TD had an