Quote:

You're talking about internaly plugging an aluminum male heater hose nipple? Yes you'd want to NPT tap it if you do & not sure if there's enough wall thickness to work with (there might be just never looked at it that way). Much easier would be to get a black neoprene end cap from the HELP section at your parts store along with some gasket cement and a hose clamp. You could paint it engine color to try & hide your handiwork. Functionally it'd be fine



OD is .880 and ID is .640, so I have .240 thick wall to work with.

I'm familiar with the hose clamp/rubber plug deal, but this is going on a road racer, and if I spill water on a track (and under my rear wheels), I might end up meeting Mr. Concrete Barrier. So, I want something more permanent. I may put an NPT plug + rubber plug and hose clamp, just to be safe.

Thanks

Scott

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