From owner-diesel-benz-digest-at-digest.net Mon Sep 20 09:20:25 2004 From: diesel-benz-digest diesel-benz-digest Monday, September 20 2004 Volume 01 : Number 1561 Forum for Discussion of Diesel Mercedes Benz Automobiles Derick Amburgey Digest Coordinator Contents: RE: [db] B2, or not B2: whether 'tis nobler... what about my question? Re: [db] B2, or not B2: whether 'tis nobler... Re: [db] Fw: Glow Plug Light, '83 300TD UPDATE Re: [db] Fw: Glow Plug Light, '83 300TD UPDATE Re: [db] Fw: Glow Plug Light, '83 300TD UPDATE Re: [db] Fw: Glow Plug Light, '83 300TD UPDATE Re: [db] Fw: Glow Plug Light, '83 300TD UPDATE Re: [db] Fw: Glow Plug Light, '83 300TD UPDATE Re: [db] Fw: Glow Plug Light, '83 300TD UPDATE [db] '83 240D clutch woes Diesel Benz Digest Home Page: http://www.digest.net/diesel-benz/ Send submissions to diesel-benz-digest-at-digest.net Send administrative requests to diesel-benz-digest-request-at-digest.net To unsubscribe, include the word unsubscribe by itself in the body of the message, unless you are sending the request from a different address than the one that appears on the list. Include the word help in a message to stag-digest-request to get a list of other majordomo commands. ---------------------------------------------------------------------- Date: Sat, 18 Sep 2004 23:12:46 -0500 From: "Alec Cordova" Subject: RE: [db] B2, or not B2: whether 'tis nobler... what about my question? > >>sounds like the sensor on the brake pads in front are > misbehaving. check > >>the wiring... could have a nick in it... might just want to replace > >>them... > > > > > > Yeh, they don't look too hot. > > > good plan... if the pads have life it's just those sensors... :) > Sounds like a reminder to all of us to not try to reuse the pad wear sensors. Spend the coupla bucks a piece and replace them when you replace your pads. ;-) Don't forget that you should be able to order an owners manual direct from MB at 800-4-mercedes (or is that 800-for-mercedes?). Just ask for Publications. I would think it should cost less than 20 or 30 bucks, maybe much less. Alec ------------------------------ Date: Sat, 18 Sep 2004 18:21:32 -0700 (PDT) From: Jerome Kaidor Subject: Re: [db] B2, or not B2: whether 'tis nobler... Alec Cordova wrote: > > I may have this backwards, but I thought a gasser (the vacuum basis for > automatic trannies) produced less vacuum at full throttle. *** Too True. And that's the function of the VCV valve on the injection pump: to produce a "fake manifold vacuum". - Jerry Kaidor ( jerry-at-tr2.com ) ------------------------------ Date: Sun, 19 Sep 2004 16:13:16 -0400 From: "Marc" Subject: Re: [db] Fw: Glow Plug Light, '83 300TD UPDATE > There are two separate controls: The relay and a timer. If you leave your > heater fan on low (as I always do) it will kick in when the relay > disconnects from the glow plugs (you may also hear the click of the > relay). On my '84 this occurs before the light goes out. I switch on the > starter at this point and always fire up. The light is controlled by a > timer and is irrelevant to the readiness of the engine to start. I've tested the glow plugs and there is no resistance. That is, the ohm meter value is the same when touching the probes as it is having one probe on the engine block and the other on the end of the glow plug. I tried to start it this morning and it would not. It was trying on about 1 cylinder. I'm thinking that the relay/glow plug unit may now be shot. How do I test this? Marc Z. ------------------------------ Date: Sun, 19 Sep 2004 14:18:55 -0700 From: john meister Subject: Re: [db] Fw: Glow Plug Light, '83 300TD UPDATE IF the glowplugs had LOW (or zero) resistance that's a good sign. Sounds like the glow plug relay/timer might be the issue... not sure how to test it. Replace it. john Marc wrote: >>There are two separate controls: The relay and a timer. If you leave > > your > >>heater fan on low (as I always do) it will kick in when the relay >>disconnects from the glow plugs (you may also hear the click of the >>relay). On my '84 this occurs before the light goes out. I switch on the >>starter at this point and always fire up. The light is controlled by a >>timer and is irrelevant to the readiness of the engine to start. > > > I've tested the glow plugs and there is no resistance. That is, the ohm > meter > value is the same when touching the probes as it is having one probe on > the engine block and the other on the end of the glow plug. > > I tried to start it this morning and it would not. It was trying on about 1 > cylinder. I'm thinking that the relay/glow plug unit may now be shot. How > do I test this? > > Marc Z. ------------------------------ Date: Sun, 19 Sep 2004 14:51:58 -0700 From: "Dan Jacobs" Subject: Re: [db] Fw: Glow Plug Light, '83 300TD UPDATE > I tried to start it this morning and it would not. It was trying on about > 1 > cylinder. I'm thinking that the relay/glow plug unit may now be shot. > How > do I test this? > > Marc Z. This sounds more like fuel to me. Check your fuel filters lately? Diesel "Yeah, it may be totally unrelated, but that's what it sounds like to me" Dan ------------------------------ Date: Sun, 19 Sep 2004 20:59:20 -0400 From: "Marc" Subject: Re: [db] Fw: Glow Plug Light, '83 300TD UPDATE - ----- Original Message ----- > IF the glowplugs had LOW (or zero) resistance that's a good sign. > > Sounds like the glow plug relay/timer might be the issue... not > sure how to test it. Replace it. > > john Yes, agreed, I'll replace it. Thanks. Marc. ------------------------------ Date: Sun, 19 Sep 2004 21:05:22 -0400 From: "Marc" Subject: Re: [db] Fw: Glow Plug Light, '83 300TD UPDATE > This sounds more like fuel to me. Check your fuel filters lately? > > Diesel "Yeah, it may be totally unrelated, but that's what it sounds like to > me" Dan Hey Dan, the filters are new. I was going to try to re-prime the system but I ran into an issue. The priming pump was leaking fuel pretty good so I need to replace it along with the glow plug relay. Oh what fun. : - ) Normally, this car starts right up and it did last night. The last thing I did last night was see how long the glow plug light stays on. Then I turned off the ignition. Marc Z. ------------------------------ Date: Sun, 19 Sep 2004 18:40:40 -0700 From: "Dan Jacobs" Subject: Re: [db] Fw: Glow Plug Light, '83 300TD UPDATE >> This sounds more like fuel to me. Check your fuel filters lately? >> >> Diesel "Yeah, it may be totally unrelated, but that's what it sounds like > to >> me" Dan > > Hey Dan, the filters are new. I was going to try to re-prime the system > but > I ran into an issue. The priming pump was leaking fuel pretty good so I > need > to replace it along with the glow plug relay. Oh what fun. : - ) > > Normally, this car starts right up and it did last night. The last thing > I > did last > night was see how long the glow plug light stays on. Then I turned off > the > ignition. > > Marc Z. OK, but trying to start the engine and it runs on less than all cylinders tells me that there is a very good chance something else is wrong besides the glow plugs. It sounds like fuel or compression to me. You must have three things to run a diesel engine: Air, fuel, and compression. Depending on the ambient temperature and your engines compression, you don't necessarily need extra heat, but it helps. Your leaking priming pump may have opened a route for air to get in your fuel system, therefore, no or not enough fuel. When I have a problem with fuel delivery, it sounds and feels like it is running on less than all cylinders, smokes like it will kill all of the mosquitoes in the Portland Metro area, and will die if I let off the fuel pedal. This doesn't sound like a glow plug problem to me anymore, but I could be totally wrong, and it wouldn't be the first time. ------------------------------ Date: Sun, 19 Sep 2004 20:35:03 -0700 From: john meister Subject: Re: [db] Fw: Glow Plug Light, '83 300TD UPDATE thanx Greg, but I think my '91 300d (124 chassis) may be different. FWIW, I put this pdf up on my server http://www.wagoneers.com/DieselBenz/TECH/Engine_617_15-710.pdf Greg Fiorentino wrote: > At 02:18 PM 9/19/2004 , john meister wrote: > >> IF the glowplugs had LOW (or zero) resistance that's a good sign. >> >> Sounds like the glow plug relay/timer might be the issue... not >> sure how to test it. Replace it. > > > The glow plugs should have a small but not zero resistance. > > There is a procedure for testing the gp relay; see attached. > > This may also help with your indicator light issue John. > > Greg ------------------------------ Date: Mon, 20 Sep 2004 10:58:19 -0500 From: "B. K. Darnell" Subject: [db] '83 240D clutch woes Hi, all! In the past, you've all be invaluable. So, here's another chance to do it again: this morning, my clutch is 'gone'. I have noticed some slippage over the last few weeks, and I've filled my brake fluid reservoir twice in the last month. There's a leak somewhere, but I can't isolate where it's coming from. This is an '83 240D. I read somewhere that there is a hydraulic unit on these models that does begin to leak w/ age. Here's my question...is this something that I might be able to repair on my own? Is this 'unit' expensive? Special tool requirements, etc.? And....if I can get the thing in gear, will it hurt the clutch/transmission to drive it? Thanks, in advance, for any assistance! B. Klaus ------------------------------ End of diesel-benz-digest V1 #1561 **********************************