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#1
09-15-2006, 09:56 AM
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603 stop lever position
can somone confirm something for me? I've got the lines of an SDL at the moment doing delivery valve seals and for 5 & 6 I had to hold the stop lever out of the way to get to them, but it always returned to the horizontal position. I came back to it last night to find the lever pointed straight up now and I cannot manually push it back to the horizontal position, it just springs back up -
did I miss something here? as far as I know, I didn't notice it sticking straight up when I was taking it apart, anybody think I did something wrong?
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 1980 500SE/AMG Euro 1981 500SEL Euro 1982 380SEL 1983 300TD 1983 500SEC/AMG Euro 1984 500SEC 1984 300TD Euro 1986 190E 2.3-16 1986 190E 2.3 1987 300D 1997 C36 AMG 2003 C320T 4matic past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350 
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#2
09-15-2006, 09:41 PM
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If there is residual vacuum in the shut-off actuator, the lever will tend to stay down. Once the vacuum has bled off, so to speak, the internal spring will make the lever tend to stay up. If you turn the key to run or pull the vacuum line from the shut-off actuator the lever should spring to vertical.
Sixto 93 300SD
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#3
09-15-2006, 09:49 PM
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A good vacuum shut-off valve will hold the shut-off lever down indefinitely using residual vacuum. You may want to test your shut off valve to see how well it can hold a vacuum, it may be in the process of dying. There is a published specification in the OM603 manual for how much vacuum should be lost over a specified period of time.
It's much easier to change it while the high pressure lines and intake manifold are off for the delivery valve seal change. In reviewing my maintenace records I see that my shut-off valve went bad approximately 10K miles AFTER I changed the delivery seals!! YMMV. Last edited by TimFreeh; 09-15-2006 at 09:58 PM.
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#4
09-16-2006, 10:20 AM
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thanks guys, I haven't had a chance to go back out and finish it yet- should get time today, but that makes perfect sense now, I was planning on pumping it down with my vac pump and seeing if it held.
 thanks!
__________________
1980 500SE/AMG Euro 1981 500SEL Euro 1982 380SEL 1983 300TD 1983 500SEC/AMG Euro 1984 500SEC 1984 300TD Euro 1986 190E 2.3-16 1986 190E 2.3 1987 300D 1997 C36 AMG 2003 C320T 4matic past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350
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#5
09-26-2006, 11:11 PM
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just to finish this thread up- with no vacuum on the shutoff valve, the lever returns to a vertical position! no worries
__________________
1980 500SE/AMG Euro 1981 500SEL Euro 1982 380SEL 1983 300TD 1983 500SEC/AMG Euro 1984 500SEC 1984 300TD Euro 1986 190E 2.3-16 1986 190E 2.3 1987 300D 1997 C36 AMG 2003 C320T 4matic past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350
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Linear Mode
