Water cooling.

[saxet]

Well i don't have access to a lathe myself but I can badger someone, I hope.
I've come to think a thermostat and cooling pump would be best to regulate temp. These bring up the problem of pressure on the pump and mounting a thermostat.

[F5 Dave]

Fins come off quickest with angle grinder & a cut off wheel. Mill might be easiest to cut square type channel around chamber (I'd offer but now is going to be seriously busy for me) & then just make a lid that gets welded over the top along with a couple of pipes in & out (funniest one I saw was a head with only an outlet, they'd forgotten that there was no connection to the water cooled barrel).

If you are going to consider doing the barrel later you may consider where the inlet is positioned so it can be u jointed to the barrel, or if you get flash blank it off & drill passageways in between.

[saxet]

Take it the baby has arrived...congrats to you and your lady.

[F5 Dave]

Thanks, but no, we are still expecting, but by the weekend is sure.

[boostin]

I did an AC50 20+years ago & went with a thermosyphon system. I had a little radiator about 120mm square by 1cm thick and had to put duct tape over the whole front except for about 1-2cm. If it rained I had to tape the front and back completely to get it to warm up. Don't get too technical with channels and flow rates, just build it, it'll be fine.

Would it be possible to put a tap in the return part of the system as a temp control? Allowing less of the heated water to rise?

[F5 Dave]

probably no reason why not, but why add complexity?, if the thermosyphon was really over efficient (unlikely) then a smaller rad would be a lighter less bulky solution.

[speedpro]

Kiss . . . . . . .

[TZ350]

My only experiance with thermo siphon cooling is with old single cylinder stationary millking machine motors.

But isn’t a thermo siphon more or less self-regulating, with the flow increasing/decreasing in proportion to how hot the cylinder/head is?

And I think that by raising/lowering the radiators height above the cylinder head the rate of flow can be varied a lot. Lower is slower and hotter, higher is faster and cooler within limits.

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