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#1
06-22-2007, 01:56 PM
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where the fuel pump?
Hey guys probably a dumbass question but where is the fuel pump on a 1987 300d? Is it in the gas tank?
 Thanks guys
__________________
Current stable...... 17' Rogue SV 70k 11’ Saab 9-5 NG 94k 10’ e550 4matic 185k sold 02' e320 210k 00' e430 167k 01' e320 171k (regret sale) 91' 300d 2.5t 300k (sold to ecoofidaho) 79' 240d 177k (old yellow my avatar) 87' 300d 169k (junk but fast) 85' 300tdt 261k (RBM parts delivery) 85' 300dt 68k (one owner cream puff) 82' 240d 250k 84' 300dt 198k (sold to diesel don) 91' 190e 2.3 61k 88' 260e 140k 
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#2
06-22-2007, 02:03 PM
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or is the IP the only pump? Gravity fed?
__________________
Current stable...... 17' Rogue SV 70k 11’ Saab 9-5 NG 94k 10’ e550 4matic 185k sold 02' e320 210k 00' e430 167k 01' e320 171k (regret sale) 91' 300d 2.5t 300k (sold to ecoofidaho) 79' 240d 177k (old yellow my avatar) 87' 300d 169k (junk but fast) 85' 300tdt 261k (RBM parts delivery) 85' 300dt 68k (one owner cream puff) 82' 240d 250k 84' 300dt 198k (sold to diesel don) 91' 190e 2.3 61k 88' 260e 140k
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#3
06-22-2007, 02:48 PM
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the little unit below the hand pump is the main supply pump. mercedes number 000-090-19-50
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1967 250 S 1967 280SE 1968 250S 1971 280 SE 1973 220 1974 280 S 1975 450 SEL 1976 220 D 1979 300SD 1983 300 SD 1985 230 TE euro 1986 280SL 1986 500 SEL euro 1986 190E 2.3 1990 300 SE 2003 C230 K 2004 C230 K 1987 560SEL 1987 300SDL now in canada 2005 C230 1998 C43 AMG Sold to DON 1993 190E 2.6 300TD Former daily driver Totaled current: R320 CDI Ram 2500 Cummins
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#4
06-22-2007, 03:16 PM
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The handpump is not on the 87 engine that is a 603 engine with no primer pump. But it still has a lift pump. It's on the injection pump.
__________________
-E300d '99 350k -Suburban '93 220k -TDI Jetta '03 350k Sold -F250 '96 7.3 -Dodge Ram 12V -E320 '95 200k -E320 Wagon 1994 155k -300d Turbo '87 187k miles -E320 1994 200k -300d Turbo '84 245k (sold to Dan62) -300d Turbo '84 180k -300sd '80 300k -7.3 Powerstroke Diesel 15P Van 500k+ miles -190d '89 Non Turbo 2.5 5cyl 240k (my first MB) Tom's Imports of Columbia MO Ruined the IP in changing leaky delivery valve O-Rings - Refused to stand behind his work. Mid-MO MB drivers-AVOID Tom's.
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#5
06-22-2007, 03:20 PM
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So there is not one on the fuel tank? I thought I remembered a buzzing sound from back there when i glowed the plugs....
 hmm oh well. ThanksI am not getting fuel to the IP. If I hook an electric pump to it and get the gravity goin it runs fine. But if I let the nose of the car get higher than the fuel tank it starves itself out of fuel. I have to hook up the pump again. 
__________________
Current stable...... 17' Rogue SV 70k 11’ Saab 9-5 NG 94k 10’ e550 4matic 185k sold 02' e320 210k 00' e430 167k 01' e320 171k (regret sale) 91' 300d 2.5t 300k (sold to ecoofidaho) 79' 240d 177k (old yellow my avatar) 87' 300d 169k (junk but fast) 85' 300tdt 261k (RBM parts delivery) 85' 300dt 68k (one owner cream puff) 82' 240d 250k 84' 300dt 198k (sold to diesel don) 91' 190e 2.3 61k 88' 260e 140k
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#7
06-22-2007, 10:32 PM
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Quote:
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#8
06-22-2007, 10:49 PM
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Quote:
Sounds like you have an air leak into the fuel lines around the IP. Happens all the time on 606 motors. The most common leak on the 606 is at the prefilter O-ring, does the 603 have a similar prefilter? Is your main filter on tight enough? What's happening is that there is air being allowed into the suction side of the fuel system. Fuel then drains back to the level in the tank. By using the electric pump, you are pulling the fuel back up to the level of the mechanical pump, which can then easily supply it to the IP.
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99 E300 TD -- sold 01 540i 6 spd
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