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#1
04-15-2008, 10:54 PM
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300SDL Problems
my OM603 engine is clapping when its at operating temp, the sound is not so noticable when its idleing when its cold but when it hit's 80*C the sound appears but not as loud when accelarating at 1100 to 1900 Rpm, when it reaches at 2000 rpm the sound ceased, sound also ceases at idle if I rev it at 2000 rpm for a few seconds in netural, what should i do, do i have to purge it, replace my injector, or even MY IP (i know this stuff is NOT cheap
 ), and my oil psi gauges is showing at 1.5 to as low as 1 bar... should i be concern about this or is this normal.THX
__________________
Current Garage 2008 Mercedes GL320 CDI 188k mi Repair/Work in progress 1994 S350 160k mi Garage Queen & prepping for repairs 2005 E320 CDI 203k mi Healthy & Daily Driver 1994 S350 357k mi Retried as parts car 1984 300TD 214k mi Blown OM617 Poss OM603 Swap?? Sold 1987 300SDL 200K+ 1994 S320 181K mi 2008 E320 Bluetec 127k mi 1999 S420 130K mi 1980 240D 360k mi 15+ Others that has come, stay and gone GONE, BUT NOT FORGOTTEN  1995 E320 SE 220k mi 1984 300SD 350k mi 
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#2
04-15-2008, 11:20 PM
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The clapping sound is just the engine applauding your driving technique...................
Seriously, it's not possible to give you any meaningful assistance when you utilize the term "clapping". It's nothing that any of us can possibly diagnose.
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#3
04-16-2008, 01:08 AM
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I'd suggest ticking lifters (of which I have at least one pernicious one) but that in my experience (with my car) shows up as a louder, more violent noise when cold than when at operating temperature.
__________________
 ~Michael S.~ Past cars: 1986 300SDL 1987 300SDL 1982 240D 1982 300SD Current: 1987 300SDL
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#4
04-16-2008, 06:42 AM
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A worn belt tensioner can set up quite a racket.
Jim
__________________
14 E250 BlueTEC black. 45k miles 95 E320 Cabriolet Emerald green 66k miles 94 E320 Cabriolet Emerald green 152k miles 85 300TD 4 spd man, euro bumpers and lights, 15" Pentas dark blue 274k miles
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#5
04-16-2008, 08:40 AM
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i'll see if i can post a video in youtube to diagnose the sound
__________________
Current Garage 2008 Mercedes GL320 CDI 188k mi Repair/Work in progress 1994 S350 160k mi Garage Queen & prepping for repairs 2005 E320 CDI 203k mi Healthy & Daily Driver 1994 S350 357k mi Retried as parts car 1984 300TD 214k mi Blown OM617 Poss OM603 Swap?? Sold 1987 300SDL 200K+ 1994 S320 181K mi 2008 E320 Bluetec 127k mi 1999 S420 130K mi 1980 240D 360k mi 15+ Others that has come, stay and gone GONE, BUT NOT FORGOTTEN 1995 E320 SE 220k mi 1984 300SD 350k mi
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#6
04-16-2008, 12:53 PM
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Injector? Lifter? Belt tensioner?
__________________
1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200
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#7
04-16-2008, 12:56 PM
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Does the oil pressure ever go above 1.5?
It should go up to 3 when the engine is running faster than idle.
__________________
"I have no convictions ... I blow with the wind, and the prevailing wind happens to be from Vichy" Current Monika '74 450 SL BrownHilda '79 280SL FoxyCleopatra '99 Chevy Suburban Scarlett 2014 Jeep Cherokee Krystal 2004 Volvo S60 Gone '74 Jeep CJ5 '97 Jeep ZJ Laredo Rudolf ‘86 300SDL Bruno '81 300SD Fritzi '84 BMW '92 Subaru '96 Impala SS '71 Buick GS conv '67 GTO conv '63 Corvair conv '57 Nomad 
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#8
04-16-2008, 10:39 PM
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yes the oil pressure goes up to 3 when accelarting but stays at 1.5 at idle, belt tensinor is ok, as i accelarate the clapping sound speed up untill 2000 rpm then it fades... after all this engine was a swap engine that was sitting in a warehouse for some time i think i need to purge it, do you reccomend purging a OM603 that has a cataylic converter???
__________________
Current Garage 2008 Mercedes GL320 CDI 188k mi Repair/Work in progress 1994 S350 160k mi Garage Queen & prepping for repairs 2005 E320 CDI 203k mi Healthy & Daily Driver 1994 S350 357k mi Retried as parts car 1984 300TD 214k mi Blown OM617 Poss OM603 Swap?? Sold 1987 300SDL 200K+ 1994 S320 181K mi 2008 E320 Bluetec 127k mi 1999 S420 130K mi 1980 240D 360k mi 15+ Others that has come, stay and gone GONE, BUT NOT FORGOTTEN 1995 E320 SE 220k mi 1984 300SD 350k mi
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