BenzWorld Junior Member
Date registered: Sep 2011
Vehicle: 1966 250S
Location: Austin, TX
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250s idle adjustment procedure?
Can anyone tell me the correct idle adjustment procedure for a '66 250s? My manual (DVD) only includes details for 220 b and 220 Sb models. I'm guessing that I should just be following the "Model 220 Sb with Zenith Carburetor" procedure, since there doesn't appear to be any instructions specific to my car and it's the closest match. It's a fairly detailed set of instructions, though, so if anyone could confirm that this is correct before I get started, I'd really appreciate it.
Tried idle adjustment using the old tighten till it gets bad and then back it off a turn method, but now I'm getting sputters on acceleration. Could be I need to go back in and re-adjust the timing, but I spent a lot of time getting that right, so I think (hope?) that it's in the carb adjustments.