Weber Carbs Leaking Gasoline - 190SL - Mercedes-Benz Forum

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post #1 of 4 (permalink) Old 07-09-2009, 04:02 PM Thread Starter
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Weber Carbs Leaking Gasoline - 190SL

Hello. I'm new to this site, and have a question I hope someone can help with.

I'm working on a '59 190SL, and have managed to get the car started but the Weber carburetors are leaking gasoline out of the air-intake barrels.

I had a mechanic friend look them over, and he cleaned them up but did not do a "rebuild". I reinstalled them, but the same thing is happening - there's quite a bit of gas coming out and going directly on to the manifold. (The car was not run for several years, by the way.)

Has anyone heard of this, or experienced the same thing? The carbs were originally purchased and installed in the early 80s, and were working fine the last time the car was running. It's been at least 2-3 years since that happened however. Any input is welcome, and thank you for your time in advance.

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post #2 of 4 (permalink) Old 07-09-2009, 04:47 PM
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Sure sounds like stuck or leaking needles and seat, or sunken floats.
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post #3 of 4 (permalink) Old 07-09-2009, 09:19 PM
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The original carbs are Solex sidedraft carbs, similar to Webers.

::: International 190SL Group :::

and a repair gallery:


Near Manassas Va. '65 220S, 2006 Ford Crown Victoria Police Interceptor, '99 Volvo V70, '72 350SL 4 speed

Not part of the in-crowd since 1952. It's BRAKES not breaks. You break a bone, use brakes to stop your car. /rant
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post #4 of 4 (permalink) Old 07-12-2009, 04:15 PM
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These carbs are really easy... I had the same problem and it turned out the guy the people who had the car before me paid to rebuild the carbs, had cut the gasket too big and it was interfering with the float's ability to float... I cut a gasket to actually fit it correctly and it works like a charm...
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