From owner-diesel-benz-digest-at-digest.net Tue Jul 7 15:10:47 2009 From: diesel-benz-digest diesel-benz-digest Tuesday, July 7 2009 Volume 01 : Number 3106 Forum for Discussion of Diesel Mercedes Benz Automobiles Derick Amburgey Digest Coordinator Contents: Re: [db] ABS light on [db] OT: FW: Automotive Industry Challenge...for Engineers (fwd) 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: Sun, 5 Jul 2009 22:05:54 -0700 (PDT) From: john Subject: Re: [db] ABS light on http://wagoneers.com/DieselBenz/TECH/Overvoltage-Relay/ovp-relay.html ----- - ------------------------------------------------------------------------ Snohomish, Washington -o|||||o- where Jeeps don't rust, they mold http://AMSOIL.com/redirect.cgi?zo=283461 http://creationwiki.org http://johnmeister.com http://wagoneers.com http://fotomeister.us - ------------------------------------------------------------------------ On Sun, 5 Jul 2009, Edward Pomeroy wrote: # John - for your database on the OVP relay and repairing it. # # Final report with pictures - Removed battery, moved first ECU out of the # way. The trick to getting the OVP relay out is that on one side of the # plastic frame that holds it, there is a hole (closed slot) that receives the # tang on one side of the relay box, on the far side closest to the firewall, # it is not a closed but a knife slot. The trick to removing is to carefully # twist the relay counter clockwise if looking at it from the back side (the # side mounted to the plastic holder), then pulling the blade that goes into # the closed pocket outwards (towards the firewall) and the whole relay then # can be moved and unplugged from the connector. # # Remove the 10A fuse (or two if yours had two), then pry the crimps on the # base of the can away from the plastic pin holder. It is a very tight fit, I # did minor damage (visible pry marks) on the can. # # Picture 25 shows can, relay and minor damage. # Picture 26 show what the relay looks like board side, notice the oxidized # rosin where the factory had re-soldered several point. Also note the lead # almost in the center that seems to have boulders around the pin, this was the # bad connection, intermittent like all get out. Crystalized tin and corrosion # all round this one point. Of course, this was the one point not re-soldered # at the factory and thus failed. It also happens to be one leg of the contact # feeding the relay contact as best I can determine. # Picture 27 -s looking down from the top, can see the relay coil and big # honking diode. # Picture 28 side view, again looking at relay and large diode in heatsink the # full size of the can wall. # Picture 29 - after cleaning with fine wire brush, re-flowing all the bad and # questionable connections (with high quality 60/40) and then cleaning with # deoxit. # # End result! The ABS light is off, the idle control is back to normal and as # a bonus, now the cruise control which had gone totally random and mostly non # functional, WORKS normally again and I don't get pulsing brakes on the # downhill, which means that if you have pulsing and sometimes self shutoff of # the cruise control on downhill, it is very likely the OVP and not the actual # cruise control amplifier, though I took the latter apart and re-flowed # several questionable connections about a month back, with no change in # behaviour, hence, it was the OVP. This little beastie of a relay seems to # have come into use after 86, the earlier diesels and gassers did not use it # or at least I can't find it in the older manual. # # Next, to either pay someone to dismantle the dash and repair/replace the A/C # item leaking in there or to try it myself..... leaning to paying a pro for # that, too much work involved. # # Was a great 4th of July, hope everyone enjoyed the weekend. # # Edward # # # # # ------------------------------ Date: Tue, 7 Jul 2009 15:10:00 -0700 (PDT) From: john Subject: [db] OT: FW: Automotive Industry Challenge...for Engineers (fwd) also passing this along for verification... :) this may be the same kind of story circulated about clinton and cattle guards in wyoming... hard to say... maybe it's a joke, but the arrogance of many with a liberal mindset defies logic, and the sometimes the laws of physics... ;) john ----- - ------------------------------------------------------------------------ Snohomish, Washington -o|||||o- where Jeeps don't rust, they mold http://AMSOIL.com/redirect.cgi?zo=283461 http://creationwiki.org http://johnmeister.com http://wagoneers.com http://fotomeister.us - ------------------------------------------------------------------------ - ---------- Forwarded message ---------- From: "Weigand, Gregory L" Subject: FW: Automotive Industry Challenge...for Engineers Ok I am forwarding this without checking it for authenticity. I'm afraid if I find out this is true I may shoot someone or myself. I just hope it's a joke and a good one at that, but I am told it is not! Automotive Industry Challenge... (We're all doomed, but we could die laughing!) Email circulating around at Ford Motor Co... My neighbor recently attended a breakfast meeting where the speaker/ guest was David E. Cole, Chairman, Center for Automotive Research (CAR). You have all likely heard Cole CAR quoted, or referred to in the auto industry news lately. Mr. Cole, who is an engineer by training, told many stories of the difficulty of working with the folks that the Obama administration has sent to save the auto industry. There have been many meetings where a 30+ year experience automotive expert has to listen to a newcomer to the industry, someone with zero manufacturing experience, zero auto industry experience, zero business experience, zero finance experience, and zero engineering experience, tell them how to run their business. His favorite story is as follows: There was a team of Obama people speaking to Mr. Cole (Engineer, automotive experience 40+ years, Chairman of CAR). They were explaining to Mr. Cole that the auto companies needed to make a car that was electric and liquid natural gas (LNG) with enough combined fuel to go 500 miles so we wouldn't "need" so many gas stations (A whole other topic). They were quoting BTU's of LNG and battery life that they had looked up on some website. Mr. Cole explained that to do this you would need a trunk FULL of batteries and a LNG tank at big as a car to make that happen and that there were problems related to the laws of physics that prevented them from... The Obama person interrupted and said (and I am quoting here) "The laws of physics? Whose rules are those, we need to change that. (Some of the others wrote down the law name so they could look it up). We have the congress and the administration. We can repeal that law, amend it, or use an executive order to get rid of that problem. That's why we are here, to fix these sort of issues". ------------------------------ End of diesel-benz-digest V1 #3106 **********************************