Practically Classics Forum

I've been doing some analysis and am basically not happy with the 'head' of water there is above the top of my Honda 250 kart, we found that last year if it lost the tiniest amount of water it would aerate then overheat so for this year I want to fix that. If possible I want to avoid the hassle of a 2nd radiator so was thinking of a bigger header tank just to hold a but more water higher up compared the the amount in the pipework there now.

My quyestion is, is there a suitable item out there for this such as a small tank for a bike etc? it would need 22mm hose connections. If not i'll put a 2nd radiator on instead but just thought i'd ask.

Id put my wellies on and scour the breakers yards, got to be something that will be a perfect solution. Good luck

Is there room for a slightly bigger radiator?

Again, the breakers seem to be a good bet - bike breakers that is.

You say that the tank would need 22mm stubs, but could a conventional header tank that acts purely to increase coolant volume not be used here? That way, you could simply connect it to the radiator overflow stub with some 7mm or similar pipe and that would give you your extra headroom.

Reason I'm thinking this way is that the "hot water bottle" type as found in everything from ADO17s and Maxis through to Triumph Dolomites, MGBs, etc. is usually cheap from eBay and these, whether brass or the later plastic ones, can handle cooling systems where the cap is rated at 25psi so shouldn't be at all stressed as a header tank rather than an in-circuit expansion tank.

There is a selection here
http://shop1.actinicexpress.co.uk/shops ... _Swirl_Pot

Have found one now, thanks for your help guys