Mud wasps? Are you in Australia?
Bob

Southern Highlands, New South Wales.

It's been a couple of days, and no word from the silicone hose suppliers.
Must have been too technical a question for a sales person.
I'll go with the Permatex Cu-silicone stuff in a tube.
Thanks folks.

I saw some "mud wasp-proof" equipment. Good idea.

A rotary phase converter I bought had many entry points, so I used much flyscreen to protect it.

I had a thought - Make a simple shutter for the small air inlet flange, so it could be open or closed.

If you helpful lads would indulge this newbie a bit more:

I discovered a brass plug near the exhaust valve lifter lever, with "OIL" stamped on it.
I had missed that when preparing to do an oil change on my 6/1.
Looking up the Instruction Book (Book 103/666), it says it is to lubricate the camshaft, with 1/4 pint oil.
How is this oil checked and replenished? That is, how to remove the old oil first, or is that not necessary?

Also, my engine came with a can with big holes in it, attached to the inlet - looks original.
There is nothing inside it in the way of a filter.
I see in the parts section of my Instruction Book an illustration of a different device, a simple elbow, part no. 8-3-176.
It's referred to as an Air Inlet Flange.
I happen to have one of these too. It also has no filter, just a screen with some holes. I can't see how a filter could be
installed in it, as it's welded up.
I'm curious as to what to make of these things. Why have they no filters? And two variations?
My engine is in a shed, and not subject to much dust if any, but there are these pesky mud wasps
that like to plug up any small hole with mud, which won't do anything good for the Lister if they get
sucked into it.

Any advices gladly received.

Speaking of silicone, I wonder if the hoses that are made of this stuff and sold as "go fast" accessories for aftermarket turbocharged cars possibly suitable?
They'd need to cope with the change in size of a few millimeters as the jointed pipes' diameters vary.
I sent an enquiry to a supplier about this.

Thank you for the suggestions.
The house heating radiator is interesting, but I already have the 44 gallon drum set up.
I'm thinking I can throttle the water flow with the tap at the lower fitting, to limit the cooling effect, if necessary.
Hopefully I can find some coolant/concentrate at a good price.

I fired up my Lister at last, connected to a 200 litre drum of water in thermo-syphon configuration.
I'd like to add some anti-rust product to the cooling water.
Are there any suggestions for a good way to go about it?
It's a lot of coolant, so cost is a consideration.