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#2
12-14-2006, 05:01 PM
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Yes, out of the ordinary. Like a constant tapping and a loose sound. At least for me.
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I'm not a doctor, but I'll have a look.  '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG] 
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#3
12-14-2006, 05:17 PM
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This morning, I was fiddling with the SDL's monovalve and realized that there was a LOT of noise coming from the front of the engine...very directional sound too ie: with the hood closed you can't really detect it but, open the hood and stand on the driver's side and there's a distinct 'rattle' that is radiating from either the timing chain, vacuum pump or belt tensioner.
Color me concerned. I read Sixto's description of the belt tensioner failure (see #4 in ths thread) and what he describes is a lot like the sound I'm hearing. When I get home I'm going to release the belt tension and start the engine to see if that eliminates the noise. Meanwhile, how do you identify the new and old vacuum pumps? I've searched the forum and cannot find anything conculsive.
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Never a dull moment at Berry Hill Farm.
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#4
12-14-2006, 09:41 PM
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Quote:
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Michael LaFleur '05 E320 CDI - 86,000 miles '86 300SDL - 360,000 miles '85 300SD - 150,000 miles (sold) '89 190D - 120,000 miles (sold) '85 300SD - 317,000 miles (sold) '98 ML320 - 270,000 miles (sold) '75 300D - 170,000 miles (sold) '83 Harley Davidson FLTC (Broken again) :-( '61 Plymouth Valiant - 60k mikes 2004 Papillon (Oliver) 2005 Tzitzu (Griffon) 2009 Welsh Corgi (Buba) 
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#5
12-14-2006, 09:53 PM
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See post #4 of this thread:
300D engine vacuum pump W124 http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1VK01GHCF1YU1AWYEP&year=1987&make=MB&model=300-SDL-001&category=D&part=Diesel+Vacuum+Pump
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Jimmy L. '05 Acura TL 6MT  2001 ML430 My Spare Gone: '95 E300 188K "Batmobile" Texas Unfriendly Black '85 300TD 235K "The Wagon" Texas Friendly White '80 240D 154K "China"  Scar engine installed'81 300TD 240K "Smash" '80 240D 230K "The Squash" '81 240D 293K"Scar" Rear ended harder than Elton John
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#6
12-14-2006, 10:01 PM
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Quote:
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Never a dull moment at Berry Hill Farm.
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#7
12-14-2006, 10:19 PM
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Old style has a smooth cover. New has the four screws on the top.
Don't pay $400 for one, that's a MONSTER mark up.
__________________
I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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#8
12-14-2006, 11:07 PM
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Quote:
 they mark that thing up double what its worth!
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Current: 05 E320 CDI 07 GL320 CDI 08 Sprinter 05 Dodge Cummins 01 Dodge Cummins Previous 2004 E55 AMG 2002 C32 AMG (#2) 1995 E300 1978 300D 1987 300D 2002 C32 AMG(blown motor :[ 1981 300SD 1983 300SD 1987 300SDL 2002 Jetta TDI 1996 S420 1995 S500 1993 190E 2.6 1992 190E 2.3 1985 190E 2.3 5-Speed
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#9
12-14-2006, 11:59 PM
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Quote:
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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!
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#10
12-15-2006, 12:37 AM
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Anybody have a pic of the old style, for comparison......
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Jimmy L. '05 Acura TL 6MT 2001 ML430 My Spare Gone: '95 E300 188K "Batmobile" Texas Unfriendly Black '85 300TD 235K "The Wagon" Texas Friendly White '80 240D 154K "China" Scar engine installed'81 300TD 240K "Smash" '80 240D 230K "The Squash" '81 240D 293K"Scar" Rear ended harder than Elton John
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#11
12-15-2006, 01:04 AM
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Quote:
__________________
'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!
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#12
12-15-2006, 01:51 AM
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Quote:
Pretty much.
__________________
I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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#13
12-15-2006, 05:41 AM
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Quote:
I'm pretty sure that mine has some sort of fasteners on the cover — I'll shoot a pic in the morning. I'll bet this eventually turns out to be the belt tensioner.
__________________
Never a dull moment at Berry Hill Farm.
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#14
12-15-2006, 06:27 AM
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Quote:
Could be the tensioner shock too, that makes a ton of noise when taking a dump.
__________________
I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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#15
12-15-2006, 10:27 AM
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Thanks all!!
I'm reasonably confident that (1) I have the later style vacuum pump and (2) the noise is caused by a combination of worn parts in the belt idler/tensioner assembly. Here's the pump that's on the car:  It is the later style pump, right? The idler dampner has loose ends (the Heim joints are worn) and the idler pully is running at a slight angle in relation to the belt. The belt looks OK so far. Today, I'll order all the parts needed to replace the idler assembly.
__________________
Never a dull moment at Berry Hill Farm.
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