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#1
08-27-2007, 09:42 PM
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87 300d throttle linkage ???
I just have been through all kinds of heck with my 300d after re-charging/rebuilding the A/C. I had a shorted clutch coil in the old Compressor so that's replaced. Also I bandsawed open the Klima relay and fixed that unit.
Anyways, once the A/C was back up (Freeze 12 didn't work well for the record--60F at the vent w/30PSI on the low side) the car would kill when I let off the pedal after reving. I finally did some experimenting and found out that when I pull the ELR it will not run at ALL. Then I remembered this... A while back the old plastic throttle linkage end that controls the IP rack cracked. I grabbed a spare 123 metal linkage and slapped it on there. My question is this: How do I adjust the IP linkage? I know on a 617 if you unsnap the linkage and let go of it, the car will kill. There is a certain amount of tension to keep an idle speed. I'm assuming my 603 is the same. How do i know how long to make my metal linkage to the IP? I suppose I could experiment until I get 520RPMs or so without the ELR. Is that a good way to go? Lastly, where in the world do I buy throttle linkages?
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-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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#2
08-27-2007, 11:29 PM
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Got it! I adjusted the linkage until it idled around 500 rpms with ELR unplugged and good to go. Much more pedal responsive as well.
Still is a little slow idling with A/C on but I'll have to read up on the RPM sensor controls tomorrow. Anyways, just wanted to update the thread.
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-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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