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#1
10-22-2012, 12:08 AM
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Serpentine belt Tensioner, 1987 300D turbo
My tensioner shock is making a lot of racket and the tensioner lever is jumping around a lot. Is is generally adviseable to replace the shock, the spring, the pulley and the lever all at once?
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Brian 87 300Dturbo 180K #14 head still running R-12 SOLD 12/2017 02 F350 Powerstroke 180K 05 Chevy Express 1 ton w/Royal Utility box 120K 08 Infiniti FX-35 40K 15 Golf Sportwagen TDI 35K 10 Sprinter 3500 chassis with a Class A Winnebago on it. 56K 
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#2
10-22-2012, 12:16 AM
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yup. and soon. don't wait.
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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
10-22-2012, 12:28 AM
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Quote:
Fortunately the car is parked in the garage right now and won't be used till I get it back into shape.
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Brian 87 300Dturbo 180K #14 head still running R-12 SOLD 12/2017 02 F350 Powerstroke 180K 05 Chevy Express 1 ton w/Royal Utility box 120K 08 Infiniti FX-35 40K 15 Golf Sportwagen TDI 35K 10 Sprinter 3500 chassis with a Class A Winnebago on it. 56K
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#4
10-22-2012, 01:22 AM
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Answer
Quote:
The vacuum pump http://www.peachparts.com/shopforum/diesel-discussion/324783-1992-300d-2-5-vacuum-pump-failure-ball-bearings-fell-into-timing-chain.html The timing chain question http://www.peachparts.com/shopforum/general-information/163604-timing-chains-dont-last-forever.html .
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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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#5
10-22-2012, 06:27 AM
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Quote:
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John 1986 300sdl 1985 380se
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#6
10-22-2012, 07:16 AM
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The spring is a consumable?
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#7
10-22-2012, 07:51 AM
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Quote:
Ha! No. It's too early in the AM. I will be replacing the tensioner arm, the shock and the pulley, AND the belt which had a few chunks torn out of it when it came in contact with the fan. I guess that the spring, unless it snaps from old age, should be just fine!
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John 1986 300sdl 1985 380se
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#8
10-22-2012, 08:36 AM
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guess again.
I thought the same thing... it snapps at VERY inopportune times. and finding a replacement is nigh impossible on a weekend...
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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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#9
10-22-2012, 08:52 AM
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Tensioner pulley $57.25
Tensioner lever $56.25 Tensioner spring $52.00 Tensioner shock $29.50 Belt $25.25 Not having to worry about your belt failing and leaving you stranded = priceless But while you have the belt off be sure to check all your driven devices for bad bearings. You should not be able to move the pulleys back and forth on anything. This might open up a can of worms (it sure did for me) but now I know everything up front is solid.
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The OM 642/722.9 powered family Still going strong 2014 ML350 Bluetec (wife's DD) 2013 E350 Bluetec (my DD) both my kids cars went to junkyard in 2023 2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles) 2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles) 1998 E300DT sold to TimFreeh 1987 300TD sold to vstech
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#10
10-22-2012, 11:49 AM
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Quote:
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John 1986 300sdl 1985 380se
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#11
10-22-2012, 12:01 PM
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when mine broke, it was not corroded, I saw no damage other than it being broken.
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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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#12
10-22-2012, 02:36 PM
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Quote:
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daw_two Germantown, TN Links: Sold last car --- 05/2012 1984 300D Light Ivory, Red interior Cluster Needles Paint New Old Stock (NOS) parts Past: 3/2008 1986 300SDL "Coda" 04/2010 1965 190D(c) "Ben" & many more
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#13
10-22-2012, 05:57 PM
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Metal fatigue is not always visible especially on that part with it being under a sheath.
Just because it is not rusty does not mean it is not fatigued.
__________________
The OM 642/722.9 powered family Still going strong 2014 ML350 Bluetec (wife's DD) 2013 E350 Bluetec (my DD) both my kids cars went to junkyard in 2023 2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles) 2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles) 1998 E300DT sold to TimFreeh 1987 300TD sold to vstech
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#14
10-22-2012, 09:57 PM
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I guess it doesn't hurt replacing it if it has around 200k+ on it
Jay bob, the spring lever, is that the black plastic piece that swivels on the head and the spring connects to? Last edited by TheDon; 10-22-2012 at 10:13 PM.
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#15
10-23-2012, 09:20 AM
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No the lever is the cast metal piece. The black plastic thing is separate. I reused mine.
__________________
The OM 642/722.9 powered family Still going strong 2014 ML350 Bluetec (wife's DD) 2013 E350 Bluetec (my DD) both my kids cars went to junkyard in 2023 2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles) 2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles) 1998 E300DT sold to TimFreeh 1987 300TD sold to vstech
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