GulfSeven

Is it not bolted to the existing holes for the petty strut?

I had the service done today, and as the coolant was being drained anyway I had the hose replaced with the OEM Caterham part I linked above. I totally forgot to ask about coolant type, so it's back full of factory-standard OAT. The new hose has a Caterham-branded matte wrap. Perhaps the original Caterham Motorsport one isn't available anymore? I certainly can't find any alternatives to the new one on the Caterham parts website.

Nice job. Here's the default fitment under the bar so a half hood fits for comparison. I actually think it's pretty neat if you put black tape on the metal strap to colour match it...

Here's what mine looks like (Caterham/Oxted half hood, S3 with track day roll bar):

Odd, is the SV different to the S3? I have the Caterham Half Hood for my 310R and the straps didn't stop the roof sticks sitting flush and fitting under the boot cover.

Moot point isn't it now that Avon has shut? I thought Toyo R888R were the new go to?

Any further info on OAT damaging hoses? The silicone bottom hose on my 4-year old 310R has become porous and will need changing in the spring...

They might, but they recommended changing the LSD oil to RRT last year which is what they use on their race cars so maybe not.

It's going for MOT and service as soon as it's back on the road in the spring anyway so I'll ask Williams what they recommend and get it sorted at the same time. They run their own race team too so should be able to advise.

Hmmm. That hose is branded Caterham Motorsport in white... so perhaps it's already silicone?

Conclusive proof that the hose is porous:

Does this imply that the Sigma and Duratec bottom hose is identical? https://caterhamparts.co.uk/hoses/7487-bottom-rad-hose-sigma-06.html

Thanks Jonathan. I don't see any hoses for sigma cars though.

Is there a silicone hose kit for a 310R?

I noticed a drop of coolant under my car since taking it off the road this year. It dripped from the bottom (large) hose going to the radiator. There were quite a few tiny beads of coolant on it in various places, so I cleaned them off, tightened the top hose to the expansion bottle (which was directly above) and left it. A day later, there's no drip on the floor, but again a few tiny beads of coolant in various places on the hose. I've now moved the expansion bottle to one side to rule that out, but there's nothing leaking from it. Could the bottom hose going to the radiator have gone porous and developed pinholes in it? It's a 2020 car...