Re: [MBZ] 1987 300SDL cool down
Mitch Haley wrote: Christopher McCann wrote: Well, perhaps Marshall's response was specific to my 300SD's OM617, the manual of which says NOTHING about cool down. Any turbo diesel is going to have exhaust temps around 200-300 degrees at idle, up to 1000-1300 F at max power. I'm guessing around 500-600 going down the freeway in your 617. That's hot enough to coke dino oil, but not M-1. When I pull off the freeway at a rest stop, I let it idle for 30 seconds or so, I find this also reduces the spike in water temperature. If I come to a stop after a hard freeway run and immediately shut off the engine, the heat soak sometimes spikes the coolant temperature by 10 or 15 degrees C. I've seen this on normally-aspirated engines in various cars, as well as in my 300D Turbo.
Re: [MBZ] 1987 300SDL cool down
I asked Marshall about this a while ago. cool downs are for gas engines with turbos as they get much hotter. Only on a long trip, hot weather, etc would a little cool down be recommneded IF using dino oil. If using synthetic (say Mobil 1 :-) ), it will never cook off, so no cool downs necessary. I am sure Marshall will correct this if I have misrepresented what he said. Christopher --- JJJ [EMAIL PROTECTED] wrote: Yes -- more like a dead turbo (bad bearings) than a bad boost line. Does he do a cool-down idle after highway runs, or does he pull into rest stops and just shut the engine off? If he just shuts off and has been using dino oil, the bearings in the turbo are coked up and it won't spin at low engine rpms. WHAT? you're saying there must be a bit of a cool-down?...are you sure?...if your sure, what is the cure for the 'coked-up' bearings? ___ For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net Christopher McCann, Squier Park, Kansas City, Missouri -1985 300SD, 209K miles, Wulf (http://www.pictureblogger.com/My-1985-Mercedes-Benz-300SD) -1976 240D, ManyK miles, AKP-Wagen (Alternativen Kraftstoffs Prüfenlastwagen = Alternative Fuel Test Vehicle) -1998 Toyota Sienna CE, 100K miles, The Van __ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com
Re: [MBZ] 1987 300SDL cool down
so...it may have nothing to do with my 300sdl?
Re: [MBZ] 1987 300SDL cool down
My manual (94S350) states 1 minuet cool down mandatory even if you are working on it in the garage. They spin at over 100k rpm you want to remove lube cooling oil. Bad juju. bill s Christopher McCann [EMAIL PROTECTED] To .com Mercedes mailing list Sent by: [EMAIL PROTECTED] Mercedes-bounces@ cc striplin.net Subject Re: [MBZ] 1987 300SDL cool down 09/23/2005 05:18 PM Please respond to Mercedes mailing list [EMAIL PROTECTED] n.net I asked Marshall about this a while ago. cool downs are for gas engines with turbos as they get much hotter. Only on a long trip, hot weather, etc would a little cool down be recommneded IF using dino oil. If using synthetic (say Mobil 1 :-) ), it will never cook off, so no cool downs necessary. I am sure Marshall will correct this if I have misrepresented what he said. Christopher --- JJJ [EMAIL PROTECTED] wrote: Yes -- more like a dead turbo (bad bearings) than a bad boost line. Does he do a cool-down idle after highway runs, or does he pull into rest stops and just shut the engine off? If he just shuts off and has been using dino oil, the bearings in the turbo are coked up and it won't spin at low engine rpms. WHAT? you're saying there must be a bit of a cool-down?...are you sure?...if your sure, what is the cure for the 'coked-up' bearings? ___ For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net Christopher McCann, Squier Park, Kansas City, Missouri -1985 300SD, 209K miles, Wulf ( http://www.pictureblogger.com/My-1985-Mercedes-Benz-300SD) -1976 240D, ManyK miles, AKP-Wagen (Alternativen Kraftstoffs Prüfenlastwagen = Alternative Fuel Test Vehicle) -1998 Toyota Sienna CE, 100K miles, The Van __ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com ___ For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net
Re: [MBZ] 1987 300SDL cool down
Well, perhaps Marshall's response was specific to my 300SD's OM617, the manual of which says NOTHING about cool down. I actually stopped cooling down after Marshall's advice, except in the few circumstances he recommended it. Christopher --- [EMAIL PROTECTED] wrote: My manual (94S350) states 1 minuet cool down mandatory even if you are working on it in the garage. They spin at over 100k rpm you want to remove lube cooling oil. Bad juju. bill s Christopher McCann [EMAIL PROTECTED] To .com Mercedes mailing list Sent by: [EMAIL PROTECTED] Mercedes-bounces@ cc striplin.net Subject Re: [MBZ] 1987 300SDL cool down 09/23/2005 05:18 PM Please respond to Mercedes mailing list [EMAIL PROTECTED] n.net I asked Marshall about this a while ago. cool downs are for gas engines with turbos as they get much hotter. Only on a long trip, hot weather, etc would a little cool down be recommneded IF using dino oil. If using synthetic (say Mobil 1 :-) ), it will never cook off, so no cool downs necessary. I am sure Marshall will correct this if I have misrepresented what he said. Christopher --- JJJ [EMAIL PROTECTED] wrote: Yes -- more like a dead turbo (bad bearings) than a bad boost line. Does he do a cool-down idle after highway runs, or does he pull into rest stops and just shut the engine off? If he just shuts off and has been using dino oil, the bearings in the turbo are coked up and it won't spin at low engine rpms. WHAT? you're saying there must be a bit of a cool-down?...are you sure?...if your sure, what is the cure for the 'coked-up' bearings? ___ For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net Christopher McCann, Squier Park, Kansas City, Missouri -1985 300SD, 209K miles, Wulf ( http://www.pictureblogger.com/My-1985-Mercedes-Benz-300SD) -1976 240D, ManyK miles, AKP-Wagen (Alternativen Kraftstoffs Prüfenlastwagen = Alternative Fuel Test Vehicle) -1998 Toyota Sienna CE, 100K miles, The Van __ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com ___ For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net ___ For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net Christopher McCann, Squier Park, Kansas City, Missouri -1985 300SD, 209K miles, Wulf (http://www.pictureblogger.com/My-1985-Mercedes-Benz-300SD) -1976 240D, ManyK miles, AKP-Wagen (Alternativen Kraftstoffs Prüfenlastwagen = Alternative Fuel Test Vehicle) -1998 Toyota Sienna CE, 100K miles, The Van __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Re: [MBZ] 1987 300SDL cool down
Christopher McCann wrote: Well, perhaps Marshall's response was specific to my 300SD's OM617, the manual of which says NOTHING about cool down. Any turbo diesel is going to have exhaust temps around 200-300 degrees at idle, up to 1000-1300 F at max power. I'm guessing around 500-600 going down the freeway in your 617. That's hot enough to coke dino oil, but not M-1. When I pull off the freeway at a rest stop, I let it idle for 30 seconds or so, it's probably mostly cool after coasting into the rest stop and idling across the parking area. When I drive home, going 35mph or so for the last 3/8 of a mile, I just park it and shut down.
