Need Cooling system lid for TVR S2

[sucioyrudo]

Hi Guys,

My TVR S2 is getting overheated during summer time in Spain and after having it all checked out it looks like I need a new expansion Cooling system lid. Not sure if this is the proper translation.

Anyone knows where can I get one?

Here are some pics of what I am looking for.




Thank you in advance!

[glenrobbo]

It's a blanking cap.

It looks like the rubber seal is way past it's best.
You could try making a new sealing disc out of rubber sheet of suitable thickness.
An old car inner tube is an ideal source.

However, most good motor factors or accessory shops should be able to supply a new blanking cap for a reasonable price.

[Top Gear TVR]

It would be rare to 'need' one of these.

Its the one on the swirl pot that matters lots (with the spring and return valve)

[phillpot]

If you have the pressure relief cap on the swirl pot and that cap on the expansion tank it should not matter if it does not seal properly.


If you do need/want a new one this looks like it would do the job.

Or a bit more "bling".

[greymrj]

Thanks Mike, that is another £9.99 that TVR ownership has cost me!!!!

[sucioyrudo]

Wow guys. I am speechless with the amount of knowledge you have!
and how helpful you guys are.

Thank you very very much for your comments and links!

I think I will order a new one from Ebay just to be 100% sure I have no more issues with the overheating.


Rally appreciate the quick help!

Best regards!!

[phillpot]

Far more important than that cap, I would make sure the pressure cap on the swirl pot is in good order and sealing properly

[sucioyrudo]

Hi Philpot,

The other one seems to be OK. I had a mechanic to do full service/check on the car, clean radiator, cooling system and fix few minor general issues, I have also changed the cooling liquid for a waterless one and the Lid seems to be the only thing that needs replacement as the rubber was completely rotten.
As soon as I get the new lid will test the car again. Although now its not that hot anymore it will give me an idea if all is OK.


Thanks a lot mate!

[phillpot]

sucioyrudo said:

I have also changed the cooling liquid for a waterless one

Have you bled the radiator since your coolant change, any air trapped in the system could have accumulated there?


IF you have the pressure cap on the swirl pot then the expansion tank is open to atmosphere (little vent pipe below cap) so a "leaking" cap will make no difference (imho)

[Griffinr]

Correct me if I’m wrong but don't the waterless coolants run at nil pressure. If so any air in the system will not necessarily be forced out and replenished with fluid from the expansion tank. You may need to top up the swirl pot manually as the air works its way out.

[sucioyrudo]

Hi phillpot, Griffinr,

I am not really sure as it is the mechanic who cleaned the cooling system, radiator ...etc. He replaced the coolant as well so I guess he did bled the system. Garage is specialist in classics cars in Spain so my guess is they did. Will confirm with them anyway later today.

Thanks for the advice!

[Griffinr]

sucioyrudo said:

Hi phillpot, Griffinr,

I am not really sure as it is the mechanic who cleaned the cooling system, radiator ...etc. He replaced the coolant as well so I guess he did bled the system. Garage is specialist in classics cars in Spain so my guess is they did. Will confirm with them anyway later today.

Thanks for the advice!

After a refill it takes a while to get all the air out. I check mine for several days after replacing the coolant and usually find it needs several top ups before I get a steady level. Check when cooled after a run. The swirl pot should be full to the top with no air gap.
Rob.

[markbigears]

remember to bleed the rad too with that upside down tap