Hi Robert,
That thread is 3/8" BSP (British Standard Pipe). It is a straight cut pipe
thread rather than a tapered thread like we use in the US. Your local
hardware store or auto parts is unlikely to have a suitable plug. One remedy
is to run a 3/8" US style pipe tap into the threads to create a taper for a
common 3/8" pipe plug. Put a little grease on the tap and run it in about
2/3 of the way. As you work it in, back it out a little every so often to
clear the treads. The new plug will seat with about a third of the threads
exposed. You can run the tap in a little deeper to seat the plug deeper. Use
Teflon tape on the threads. Don't over tighten the new plug.
At some point if you decide to reconnect the heater you can replace the plug
with a readily available US threaded hose nipple.
Rick Patton
Brunswick Maine
Heater not running today-
> Date: Sat, 11 Jun 2005 01:27:24 +0100
> From: "Robert ray" <trsix@operamail.com>
> Subject: plugging off the hot water to the manifold
>
> i'm going to plug off my heater, i have a plug for that that fits the back
> of the water pump housing.got it from moss.
> i also want to plug off the hole by the thermostat that feeds the intake
> manifold hot water. it's very warm here most the year and i don't need it
> don't think.
> this plug is a little smaller, i'd like to find one.
> anyone know the size and maybe where to order one? i tried the local
> retailers, thread didn't match. thanks
>
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