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Old 01-11-2009, 04:17 PM
Join Date: Jan 2009
Location: redmond,wa
Posts: 2
69 230 help with carbs

hello all out there ive recently got a 230,auto,my questions are about the carbs and how or if i can tell if the secondarys are opening?this is my first mb and i really enjoy the overall build/design of it,ive read lots and appreciate everyone who has given there knowlage and experiences of these cars,jason

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Old 01-12-2009, 12:25 AM
cth350's Avatar
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Join Date: Dec 2000
Location: Long Island, NY
Posts: 4,197
Jason, you're in for a swell time. The 1969 230/8 was my first car. Been through at least 100 mercedes since. Welcome to the club, the water is warm.

You should have a pair of zeniths, lots of threads to read.

Are you brave? with the air cleaner off, take her up at idle to 4,500 rpm and with a flashlight, look down the throats. If you're getting a lot of backfiring, don't do that.

Don't mess with the carbs until you're sure the points and timing are what they should be, which means setting the timing at 4,500 rpm.
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Old 01-12-2009, 10:37 AM
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Join Date: May 2008
Posts: 154
DON'T TOUCH THE CARBS LOL Just kidding, but if it is running ok......leave it. I have zenith carbs on my 250S, and they are a bear to tune, so if it is running ok? leave it... The carbs are very touchy, and 1 thing gets out of wack..everything else does don't mess with them until you have to.


1967- 250S - Dual Zenith Carbs

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