Thanks Russ, Do you know what the timing should be set for that situation? On my 250 it states 4 ATDC but that's with the system retarding.
-------------- Original message -------------- > Back in the day, it was pretty clear what to do with the emissions > equipment on these cars: disconnect it! Once the relays and black boxes > started malfunctioning on cars of the period (and they all did, didn't > they?) the owner was presented with the option of replacing an expensive > component of dubious value or just bypassing the vacuum lines. With a > 30-year-old car the option seems all the more obvious. > > There's a mechanic in my region who restores MBs from the 50s and 60s. > He's well-known and of high repute. I took my '71 250 there to get it > running right after years of driving it around at about 85% of the > performance Gottlieb D intended. > > When I got it back he had bypassed both switching valves and the retard > side of the vacuum advance. A line from the vacuum port on the front > carb fed the advance side of the distributor diaphragm and the antistall > dashpot on the rear carb. I won't bore you with other adjustments the > car needed -- the point is that it ran fine with all the boxes and > switches disconnected. > Russ Maki > Ixonia, Wis. > > > Peter Frederick wrote: > > >George: > > > >there is an rpm sensor that switches the valve from retard to advance > >at I think 2000 rpm (will have to check that). If the valve is bad, > >you are out of luck, they don't make it any more and you will have to > >engineer a substitute some way or the other from different valves. > > > >You should have vac on the supply side, and it should switch between > >the retard and advance sides when the valve switches. You can manually > >operate the valve by connecting 12V across it. > > > >Note that if the hoses aren't connected correctly, you may have vac on > >the retard that goes away when it switches, or vice versa. > > > >I will check that later this evening, have to find the book. > > > >Peter > > > > > >_______________________________________ > >For used parts email [EMAIL PROTECTED] > >For new parts see www.buymbparts.com > >For repairs see www.oldworldauto.com > > > >To Unsubscribe or change delivery options go to: > >http://striplin.net/mailman/listinfo/mercedes_striplin.net > > > > > > > >_____________________________________________________ > >This message scanned for viruses by CoreComm > > > > > > > > > > > _______________________________________ > For used parts email [EMAIL PROTECTED] > For new parts see www.buymbparts.com > For repairs see www.oldworldauto.com > > To Unsubscribe or change delivery options go to: > http://striplin.net/mailman/listinfo/mercedes_striplin.net
