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Could someone tell me the thickness of the carburetor insulator on a 2106?
Thanks,
Mark

The insulators on my 2206 and 2306 are 3/8" thick. Same part number as 2106.

I was having lots of vapor lock issues with my 51 200. In an effort to combat it, I made sure the fuel pump had the fiber insulators around the bolts, lengthened and rerouted the fuel line so that it wasn't above the manifolds, slit a rubber fuel line length wise and put it around the fuel line, and added another carb insulator for a total of two (these are the old fashioned ones with asbestos). All of these seems to have done the trick.

Long story to explain that the thickness is variable, but thicker is better in my opinion.

Thats interesting because vapor lock usually occurs on the "vacuum" side of the fuel pump, not the pressurized side of the pump. Liquids boil at lower temps in lower pressure, and higher temps at higher pressures.


This is why in/near fuel tank mounted pumps are used now as this keeps the line pressurized from the tank to the engine.