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#1
12-24-2010, 11:16 PM
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Belt pulley cut into lower radiator hose 1984 300D
I installed both upper and lower radiator hoses a few weeks back. I just installed a new hose from the driver's rear of the block to the heater core hoses and while checking for coolant for leaks with the engine on I just happened to witness what I believe is the alternator pulley break through the lower radiator hose.
It must've been doing that for a few weeks now and I just happened to be down there looking at the right moment. What I can't figure out is how it happened. I installed the hose just where the old one was and I don't remember seeing any clearance issues with the belt before. So my question is how did this happen? Did I install the hose wrong? Today everything was closed except for one shop that can get me a hose on Monday. Just trying to set up a game plan until it gets here.
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Onus probandi incumbit ei qui dicit, non ei qui negat I recondition w123/w126/w124/w140/r107/r129/ steering boxes! 1984 300D "Elsa" odo reset 6/2011 147k 1983 300TD "Mitzi" ~268k OM603 powered 1995 E300 "Adelheid" 262k [Sold] 
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#2
12-24-2010, 11:18 PM
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PICS?
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!!  1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#3
12-24-2010, 11:18 PM
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This thread is worthless without pics. About impossible for the lower hose to hit the belts iirc.
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http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42
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#4
12-25-2010, 12:00 AM
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Quote:
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Onus probandi incumbit ei qui dicit, non ei qui negat I recondition w123/w126/w124/w140/r107/r129/ steering boxes! 1984 300D "Elsa" odo reset 6/2011 147k 1983 300TD "Mitzi" ~268k OM603 powered 1995 E300 "Adelheid" 262k [Sold]
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#5
12-25-2010, 12:06 AM
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Answer
Quote:
#2. The engine mounts failed? .
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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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#6
12-25-2010, 12:14 AM
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On my 1980, I had this start to happen just after I adjusted the fan belt. The belt needed replacing & was on the end of the adjustment.
Easy fix; loosen the bottom clamp & rotate the hose a little.
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Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort....  1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles  1987 250td 160k miles English import  2001 jeep turbo diesel 130k miles  1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving
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#7
12-25-2010, 11:14 AM
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From the top.
 A little better angle.  And from the bottom.
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Onus probandi incumbit ei qui dicit, non ei qui negat I recondition w123/w126/w124/w140/r107/r129/ steering boxes! 1984 300D "Elsa" odo reset 6/2011 147k 1983 300TD "Mitzi" ~268k OM603 powered 1995 E300 "Adelheid" 262k [Sold]
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#8
12-25-2010, 12:55 PM
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Now that your hose is ruined, might as well take it off and see if it clears better with the ends switched around.
If so, when it arrives, install the new hose accordingly. If not, maybe the previous parts-guy sold you the wrong hose. Happy Motoring, Mark
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DrDKW
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#9
12-25-2010, 01:01 PM
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yup. and you better inspect your motor mounts while you are at it!
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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