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#1
12-05-2005, 01:36 PM
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Aux. water pump.
Can a aux. water pump be placed inline heater lines w/out replacing the dead original one? 85 300 D and 603 motors.
__________________
82 300D....went to MB heaven 90 350 SDL....excercising con rods 
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#2
12-05-2005, 01:41 PM
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Quote:
__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche
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#3
12-05-2005, 03:32 PM
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It takes 20 minutes to change the aux water pump. Takes much longer to earn enough to pay for it. - Even the good deal from Fastlane.
__________________
 DS2010 CL550 - Heaven help me but it's beautiful 87 300D a labor of love 11 GLK 350 So far, so good 08 E350 4matic, Love it. 99 E320 too rusted, sold 87 260E Donated to Newgate School www.Newgateschool.org - check it out. 12 Ford Escape, sold, forgotten 87 300D, sold, what a mistake 06 Passat 2.0T, PITA, sold Las Vegas NV
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#4
12-05-2005, 05:32 PM
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I have a 12v pump of undisclosed origin that I want to put inline to control the flow of coolant thru a parallel/series (via switches) veggie heat exchanger.
__________________
82 300D....went to MB heaven 90 350 SDL....excercising con rods
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#5
12-05-2005, 05:40 PM
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That would accomplish the necessary coolant flow that the aux water pump provides as well. Sounds like it would be a good idea, but you might as well remove the non functioning aux pump as it probably restricts flow some what when inoperable. I say this because when I changed mine recently, I noticed that the impeller was completely frozen, which probably impedes coolant flow.
__________________
DS2010 CL550 - Heaven help me but it's beautiful 87 300D a labor of love 11 GLK 350 So far, so good 08 E350 4matic, Love it. 99 E320 too rusted, sold 87 260E Donated to Newgate School www.Newgateschool.org - check it out. 12 Ford Escape, sold, forgotten 87 300D, sold, what a mistake 06 Passat 2.0T, PITA, sold Las Vegas NV
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#6
12-05-2005, 06:07 PM
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Bingo, we have a winner!!!
Quote:
 What he said. Yes, it can be replaced, but leaving a dead pump in the line will restrict flow. 
__________________
ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/
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#7
12-05-2005, 06:19 PM
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Get the old pump out, its not a big job. Put the new one in a enjoy constant heat.
__________________
1981 300D 147k 1998 VW Jetta Tdi 320k 2001 Dodge Ram 2500 141k 1979 300D 234k (sold) 1984 300D "Astor" 262k(sold) Mercedes How-To and Repair Pictorials I love the smell of diesel smoke in my hair 
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