--------------- FIDO MESSAGE AREA==> TOPIC: 246 AUTOMOTIVE Ref: F3M00005 Date: 03/14/98 From: SEAN DUNBAR Time: 07:36pm \/To: ALL (Read 0 times) Subj: Well. Those of you who noticed my dissappearing act.. I shut down my board. 2 calls a day is NOT worth it for anything. Need to reach me? se0@airmail.net (that's se-zero, not se-oh, if 0 and O look the same on your screen). I'm going to El Paso on Thursday and won't be back until Tuesday, and I'm also trying to find a board that carries AUTOMOTIVE (this one may be going down soon)... --- Telegard v3.09.g1/mL * Origin: FidoNet [Novatech-TX].[972-475-3833].[Texas] (1:124/7006) --------------- FIDO MESSAGE AREA==> TOPIC: 246 AUTOMOTIVE Ref: F3M00006 Date: 03/17/98 From: DARYL MACDONALD Time: 12:39pm \/To: JAN DEBOER (Read 0 times) Subj: Re: Timing belt lifespan? JD> On 10 Mar 98 15:57:42 Daryl Macdonald wrote to Jan Deboer... JD> JD> My 1989 Dodge Shadow 2.5 L has 129,000 kilometers on the JD> JD> clock, with the original engine timing belt. JD> [...] JD> JD> Anyone know what the normal lifespan of these belts is? JD> DM> I wouldn't leave it much longer if you can afford it. I JD> DM> had a Ford Ranger that was the same way and it is not JD> DM> good to be on your way somewhere and get halfway there JD> DM> and braek the belt. JD> I know - that's what I hope to avoid! JD> DM> If you can do the work yourself JD> DM> then see if you can borrow a friends garage or see if a JD> DM> local garage will rent a bay to you. JD> I have an unheated garage, and am thus hoping the belt lasts until JD> the weather warms up a bit! I can do the work myself, although JD> I haven't done a timing belt replacement before. I also have an '88 JD> Shadow 2.2L, which had a noisey belt, and am 'training' on it. JD> Shop manual indicates removal of inner splash panel, power JD> steering, air conditioning and serpentine belts, water pump pulley JD> and crankshaft pulley, and timing belt covers. They forgot to mention JD> that the compressor, alternator, tensioner, idler, and incredibly inept JD> mounting bracket, replete with bolt which penetrates into cooling JD> system, also have to be removed. Some of the dismantling is done, but JD> the weather turned cold, so I had a good excuse to avoid the job :-) JD> What I was hoping for was some feedback on experience specific to the JD> 2.5L engine. Surprisingly, there is a difference between the 2.2 and the JD> 2.5 belt, since the latter costs twice as much as the 2.2 belt. I'm JD> assuming that because of the incredible amount of labour involved in JD> just accessing the belt, they made the 2.5 belt stronger to lengthen JD> service life. JD> Everyone tells me the belts are not interchangeable, yet JD> the 2.2 and 2.5 engines are supposedly identical, except for stroke and JD> the addition of two small chain driven balance shafts on the 2.5. I JD> asked a local dealership, and they recommend replacement of the 2.5 belt JD> @100,000 km. JD> Whenever I'm parked near another Shadow, I always peer in JD> at the odomoter, and 200,000 km is pretty common. I guess I'm going to JD> have to accost the drivers and ask about engine size and timing belt JD> replacement! . JD> --- Everything/2 JD> * Origin: Tiny's BBS - Inet: tinys.oix.com / On,Canada (1:229/600) I've never done a belt on a 2.2 or a 2.5 Shadow so I can't help you there. From what you are saying it sounds like a lot more work then what my old '86 Ranger was. I broke that on the way to work one day and got it towed to work and stayed late and did the job in about an hour. I have also done some on Nissan Micra's and have taken anywhere from a couple of hours to 3 days, depending on when they broke, or if they broke. They were a pain cause if they broke they liked bending at least 4 valves and sometimes they would damage the head which ran into big money. Hopefully you'll be able to wait for a little bit longer until th weather turns warmer :) So where are you at? I know here in Halifax,NS, it was nice last week but it decided that winter was coming back the first of the week. Anyway, good luck and I look forward to hearing how it turns out for you. --- AdeptXBBS v1.11z (FREEWare/2) * Origin: TGR Communications BBS/Fax (902) 477-5629 (1:251/35) --------------- FIDO MESSAGE AREA==> TOPIC: 246 AUTOMOTIVE Ref: F3M00007 Date: 03/17/98 From: DARYL MACDONALD Time: 12:49pm \/To: GARY HALL (Read 0 times) Subj: Re: Timing belt lifespan? gh> On (10 Mar 98) Daryl Macdonald wrote to Jan Deboer... gh> JD> My 1989 Dodge Shadow 2.5 L has 129,000 kilometers on the gh> JD> clock, with the original engine timing belt. gh> JD> Anyone know what the normal lifespan of these belts is? gh> About two years ago get a belt installed or get AAA you are living gh> beyond borrowed time. gh> gh> --- PPoint 2.02 gh> * Origin: Terlton the Oklahoma Jungle 74081 (1:170/302.16) Gary, I was wondering why you sent this message to me? I don't have a '89 Shadow but I did respond to the original message. However, I agree, It should be done ASAP or he may find himself sitting on the side or the road. --- AdeptXBBS v1.11z (FREEWare/2) * Origin: TGR Communications BBS/Fax (902) 477-5629 (1:251/35) --------------- FIDO MESSAGE AREA==> TOPIC: 246 AUTOMOTIVE Ref: F3M00008 Date: 03/17/98 From: PETER HARLE Time: 03:11am \/To: ROY J. TELLASON (Read 0 times) Subj: OHM'S LAW / Current sensing? -=> Quoting Roy J. Tellason to Peter Harle <=- RJT> I *like* this idea! Never thought about the differential current as a RJT> way of telling that there was a problem. Though you'd have to wire RJT> such a device (or its equivalent) near the location of the bulbs, RJT> based on the way I see a lot of stuff being wired. PH> Depends on the vehicle of course, but some have separate fuses PH> for the left and right hand sides. RJT> I've never encountered this in anything I've owned. That could be, I had an older (61) Mercedes (190b) it was wired that way. So were some VW beetles etc. Probably compulsory in Germany. RJT> I guess for brake lights there would be two separate wires involved, RJT> if those were also used for turn signals. In the case of my current RJT> vehicle, it's the first car that I've owned that had the "yellow" RJT> turn signals at the rear, so they're running a separate bulb for RJT> that. Here in OZ, the brake lights and turn indicator lights must be separate and can only be yellow for the latter. PH> Reed relays are available in a wide range of configurations, PH> (NO/NC/CO change over) and current ratings. The reed relays I PH> fiddled with were around 40mm long x 4mm dia. PH> the differentially wound coil 2 layers of 40 turns PH> of approx. 1mm dia. wound directly over over the glass reed PH> relay body. RJT> That's the part I was wondering about. 1mm diameter sounds like it's RJT> roughly #18 wire. I guess you'd wire these up so that the current RJT> goes in opposite directions when things were working normally... Absolutely.. PH> It wouldn't be difficult to come up with a sensor based on a PH> hall effect device (as per Mark Logsdon suggestion) or an MMF PH> resistor, either could be used within a toroidal current probe. RJT> Actually my original thinking on this was to insert a small-value RJT> resistor in each wire of the circuit, with some sort of a simple RJT> sensing circuit connected to it, though I guess that the differential RJT> current relay sounds like it might be even simpler yet. I'm going to RJT> have to play with this idea a bit, look into it some. Sensing the voltage drop across a resistor (current sensing) will add un-necessary voltage drops into the system, also, unless the globes are matched (for peak and average current) you may get spurious results from any op-amp sensing circuit. This would not bother the diff relay approach as much. PH> Roy, you should be able to get these relay units from Truck PH> wreckers etc. The units I had were a pressed steel case about the size of a 3.5" floppy, but an inch or so "thick", with conventional screw terminals suitable for "spade lugs" on two of the sides. However I will check and find out brands etc and availability. Cheers, Peter H. --- EzyBlueWave V1.20 01fb000b * Origin: Mt.Druitt TAFE +61-2-9839-1310 FidoNet (3:713/709) --------------- FIDO MESSAGE AREA==> TOPIC: 246 AUTOMOTIVE Ref: F3M00009 Date: 03/17/98 From: PETER HARLE Time: 05:03pm \/To: ROY J. TELLASON (Read 0 times) Subj: OHM'S LAW / Current sensi -=> Quoting Roy J. Tellason to Mark Logsdon <=- RJT> Mark Logsdon wrote in a message to Jay Emrie: JE> Roy, one need not go to all the sophisticated stuff being expounded JE> here. Reed switches with N/O or N/C contacts are readily available that JE> will do the job. No need for differential ckts or the like. Why make JE> mountains out of mole hills? ML> I ask this in self-admitted ignorance: how reliable are ML> reed switches in a potentially high-vibratory environment? RJT> I've seen them used (only very occasionally) in Organs, where you get RJT> a seriously nontrivial amout of vibration at real low frequencies, RJT> and they didn't seem to fare all that well... RJT> Though I know of no reason why they need to be made out of glass, as RJT> they commonly are. Roy, (and Mark) Reed relays have been used in industry applications for many years. It's simply a matter of using the correct type for a given application. Although vibration can be a problem, it is no more or less a problem as it is for conventional relays. I can't see it being a problem with the current sensing application unless of course the relay unit is mounted on the engine itself TOPIC: 246 AUTOMOTIVE Ref: F3M00010 Date: 03/17/98 From: TOBIAS HEUER Time: 03:03pm \/To: ALL (Read 0 times) Subj: ECM failure ? Hi. I was wondering where the noticeably poor mileage is coming from... So I checked the various sensors and computer controlled components in my engine compartment .... Here comes the problem: My Computer does not notice disconnected sensors at all! Neither the Check Engine Light comes on while i'm driving nor are any trouble codes stored in the computer's memory. BUT the light comes on with ignition ON and engine OFF. And when the test connector is grounded properly and the igniton ON the code 12 is sent as it should. The question is, is it possible that there's a fault in the computer harness (a permanent ground or a short) or some other problem that prevents the ECM from detecting those errors. Or has that whole damn unit to be replaced? Any expiriences or thoughts? --> [*HEUER*] eMail *THeuer@mailonly.ftn.de* --- CrossPoint v3.11 * Origin: *SHIT* (2:241/500.6) --------------- FIDO MESSAGE AREA==> TOPIC: 246 AUTOMOTIVE Ref: F3M00011 Date: 03/17/98 From: MARK LOGSDON Time: 08:55pm \/To: ROY J. TELLASON (Read 0 times) Subj: OHM'S LAW RJ> GH> It is common knowledge that the three things that are RJ> GH> the worse on electronic parts is, water, heat, and oils. RJ> RJ> ML> I would add vibration to that list. RJ> RJ> I suspect that's why we see some stuff ending up getting "potted" in RJ> epoxy or whatever the heck it is that they use... There are different kinds of epoxies and silicones that are used as potting and conformal coating. They do help in damping vibration of small moving parts, but the coatings and pottings can cause other problems. It's a tradeoff. The solution to vibration is isolation. --- QScan/PCB v1.19b / 01-0232 * Origin: IBMNet Connection - Indpls, IN - 317-882-5575 28.8 USR (1:231/1) --------------- FIDO MESSAGE AREA==> TOPIC: 246 AUTOMOTIVE Ref: F3M00012 Date: 03/17/98 From: MARK LOGSDON Time: 08:55pm \/To: ROY J. TELLASON (Read 0 times) Subj: OHM'S LAW / Current sensi RJ> ML> I ask this in self-admitted ignorance: how reliable are RJ> ML> reed switches in a potentially high-vibratory environment? RJ> RJ> I've seen them used (only very occasionally) in Organs, where you get RJ> a seriously nontrivial amout of vibration at real low frequencies, and RJ> they didn't seem to fare all that well... That's why I wonder. I don't recall seeing reed switches use in aerospace or aviation, and that's why I asked. --- QScan/PCB v1.19b / 01-0232 * Origin: IBMNet Connection - Indpls, IN - 317-882-5575 28.8 USR (1:231/1) --------------- FIDO MESSAGE AREA==> TOPIC: 246 AUTOMOTIVE Ref: F3M00013 Date: 03/17/98 From: GARY HALL Time: 10:44pm \/To: JOHN FAERBER (Read 0 times) Subj: Trouble Code Access On (16 Mar 98) John Faerber wrote to All... JF> How do I get in to pull the error codes on a 1988 Olds Toronado? Just like the Caddy the Off and Warmer buttons, to get the piremeters use the high and low blower. off and high fan and off and low fan to clear them. --- PPoint 2.02 * Origin: Terlton the Oklahoma Jungle 74081 (1:170/302.16) --------------- FIDO MESSAGE AREA==> TOPIC: 246 AUTOMOTIVE Ref: F3M00014 Date: 03/16/98 From: RON TAYLOR Time: 09:56am \/To: JAY EMRIE (Read 0 times) Subj: Auto questions JE>First, in order to answer your questions properly, one must know the >make, model and engine you have. '90 Chevy Series 20 Van with full conversion, 5.0 liter (I think... the 350 equiv at any rate), fuel injected, and lots of computerization. 265,000 miles on the factory Cat. (I know.... all other maintenance done on time, I just don't think in terms of catalytic converters ). My questions are related to the intermittent mis-fire that I've mentioned here previously. The entire ignition system has been checked and parts replaced where necessary, all wiring and connections cleaned and tightened, new fuel pump and filters, yet this beast still skips a beat often, usually when going uphill. The CES light comes on and goes off at least once on most every trip, yet the dealership tech says that the computer does not reveal a code. He says that there is no indication that the CES light has ever lit. Gas milage is still approximately what it was when the van was new. --- * QMPro 1.02 42-7029 * Why can't you find a tagline when you need one? --- WILDMAIL!/WC v4.12 * Origin: Crime Bytes (1:135/5.0)