weight of a 21 rigger

[John Knight]

How does the plug cooling fitting attach I wonder? Have to be some kind of quick disconnect.

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Scott,

The Picco 45 I have in my rigger now has a threaded adapter that screws over the plug and into the head and has a small hole drilled in the top for the water to exit. Takes about 8-10 seconds to install. First time I have seen the one in the picture Marty attached. Be interested how it is attached.

John

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John:

I have not seen one of these engines in person and don't know how it is attached. I would bet that it is a push fit with an o ring, but not sure.

Marty Davis

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Marty,

You are right again. There is one posted today on e bay being sold new from Hong Kong. Photo shows the plug with an o ring on it for a press fit. It had best be tight and the owner also will have to watch that ring carefully that no splits develop in it. Otherwise it is launched by the water pressure.

John