Pagoda SL Group
W113 Pagoda SL Group => General Discussion => Topic started by: keesing on February 16, 2006, 14:35:36
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My '67 250SL will be transported from sea level to 7,500 ft above sea level...
1st: Will it start?
#2: If it does start, will it cause any problems driving it about 75 miles before I adjust it or is that just asking for problems?
#3: Is the correct adjustment simply on the fuel injector and air adj screw - or is there more to it??
:mrgreen:
I knew it doesn't have carbs... :?
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Can't say for that high -- but mine starts fine in Tahoe which is 6000 and Santa Barbara which is about 60. I bet if your car started at sea level, it will also start at 7500. It may run richer up there since the air is thinner. Our cars don't have a carburator -- but there are ways to adjust the mixture nonetheless. I'd be careful and research before doing too much. It is my understanding that the FI has a built-in mechanism (altitude compensator)that takes into consideration altitudes...
James
63 230SL
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I drove my 230SL across Monarch Pass in the Rockies last summer, an altitude of 11,300 feet. No problem at all. I believe that the altitude compensator in the FI system takes care of everything.
I certainly wouldn't expect to have to adjust anything as one drives up and down mountains. As Chad said "it's a Mercedes".
-David Pease
'66 French 230SL
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It will most likely start. Just fill it up and drive it up I-25 and figure everything out when you get home. There are several good Mercedes places in Santa Fe area. Find someone who knows it.
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The altitude compensator is AKA the barometric pressure regulator if I am not mistaken. It's that big round canister thing sitting on top.
quote "I am always right. Only once I though I was wrong, and even then I was mistaken"
Cees ("Case") Klumper in Amsterdam
'69 white 280 SL automatic
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Yes, the IP does auto-adjust for barometric pressure by moving the regulator along the rack at all throttle positions (not just at idle) when relative pressure is less than 1 atmosphere. That, and the way the cone in the IP is mapped (it is milled in three dimensions but it is not concentric: rather, it is parabolic shaped, and how MB decided how to do this is a mystery to me) is one of the most amazing engineering feats, perhaps one of the real engineers on the board can give a quick tour.
Best,
g
'64 230sl, fully sorted out...ooops, spoke too soon