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#1
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DELIVERY VALVES (which cars share them)
Which cars share the same delivery valves as the OM602 (2.5L 5cyl) non turbo diesel?
I know the 300 has the same pump so I assume they use the same delivery valves, but what about other cars with different pumps? Did mercedes use the same delivery valves in the 4cyl cars? Basically I need to get my hands on some delivery valves and would like to know every car that shares the ones I have. |
#2
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Best bet is to use the EPC to find info like that.
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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles 06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#3
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They may be shared between 601/602/603 The part for the o-rings and crush washers to re-seal them is the same between all three, as is the size 32pt socket. I will be re-doing mine on my OM601 shortly.....as well as new injector nozzles..
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#4
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Delivery valve holders leaking in your diesel? Do what I did.
Step 1: Think it's the injectors and put new return lines on then buy new nozzles and have them pop tested at diesel injection only to find you still have a leak. Step 2: Realize it is the delivery valve holders O-rings leaking and purchase new O-rings with washers for the tops of the delivery valves. Step 3: Re-Install Delivery valve holders with new O-rings and washers to exactly 25 FtLbs, but be sure to have never used such a low torque setting on a torque wrench and think the click is just play in the wrench and break the holders off inside of the injection pump. Step 4: Borrow an easy out kit and remove broken threads from injection pump. Step 5: Buy expensive replacement delivery valve holders with more O-rings and washers. Step 6: Re-install a second time and be careful to torque it correctly. Step 7: Spend 2 hours re assembling all of the fragile pieces, install new intake manifold gasket with the manifold. Step 8: Start the car and acknowledge it is running like ****, step outside to look at the pump and acknowledge that indeed it is still leaking in exactly the same place. Step 9: Rev engine a bit to try to smooth it out and notice huge amounts of oil spatter all over your engine bay. Step 10: Shut off engine. Step 11: Realize you forgot to re-install crank vent lines, and re-install. Step 12: Start car and acknowledge it still runs like **** and begin loosening and tightening each hard line to remove all remnants of air. Step 13: Let car warm up a bit more, give it a good hard rev and notice a smoother idle with a tad less pinging. Step 14: Repeat step 13 with even better results. Step 15: Repeat step 14 and blow up the engine. FIN |
#5
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Ouch that sounds pretty painful.
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1978 Mercedes 240D 1981 Mercedes 240D 1982 Mercedes 240D |
#6
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Well I didn't blow the engine but the pump ran away then in to shutoff mode. Several quarts of fuel made it into the sump. I changed oil tore it all down and took out all barrels marked and reinstall with new washers. Put it all back and start it and it runs fine. Small rev and it runs away again. More fuel in sump. Changed oil again start it up runs ok then misses again. I could never get that 5th barrel out... time for new pump.
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