Is the air compressor on all 109 cars the same? (300sel and 6.3)
Are they rebuildable?

thanks
Fred

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MB-less

pretty much the same. Different configurations for different motors. The 3.5/4.5 pumps are the same. The 6.3 & M189 pumps are different from those based on how the pump mounts to the PS pump.

There are a couple of detailed and excellent threads on the rebuild at www.m-100.cc.

For those that don't have one of these puppies to look at, the air pump is essentailly a one cylinder motor that gets engine oil for lubrication and has its crank driven externally. What would be a cumbustion chamber is just a huge airpump.

-CTH

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- cth350@gmail.com
http://www.111lakeside.com/