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#1
05-17-2009, 04:26 PM
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Dead oil pressure gauge
My oil pressure gauge is not working, anyone know where is the oil pressure switch is located, its from a 1974 240D with a OM616...
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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
05-17-2009, 05:06 PM
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O.K. My bad Info
What 79mercy says below
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'84 300SD sold 124.128 Last edited by compress ignite; 05-17-2009 at 10:57 PM.
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#3
05-17-2009, 06:41 PM
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isn't that a mechanical gauge?
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg
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#4
05-17-2009, 08:04 PM
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79Mercy is right. Yours is mechanical, so there should be simply a tube attached at the oil-filter mounting plate. The computation of pressure is done at the back of the oil pressure gauge.
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 Don't Chrome them; polish them
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#5
05-17-2009, 08:11 PM
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actros617, make sure that the oil pressure line isn't blocked. If it isn't blocked then you'll need a new gauge. Usually those gauges don't go bad, they just start to leak.
BTW, are you sure the motor is producing oil pressure.
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg
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#6
05-17-2009, 08:20 PM
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Yes the motor is producing oil, we open the oil filler cap and oil was spraying on the Cam shaft, i have heard that oil pump in these rarely fails unless tempered with, So these cars dont have a oil pressure sender, instead i has a line that goes directly to the oil gauge, how do i test if the line is clogged.
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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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#7
05-17-2009, 08:27 PM
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take the line loose at each end and blow through it.
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg
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#8
05-18-2009, 02:35 PM
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Quote:
 , ill try that though
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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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