75 Twin Spark Coolant Expansion Tank Cap

[50/50]

Hi all, I was hoping someone out there can confirm something for me.
I was wanting to know exactly which is the correct coolant tank cap to use for the TS, is it 0.7, 1.0 or something else all together?
I've even had one that has a hose connected on top of the cap, anyone know if this is suitable for a 75 TS, and what specific model Alfa this particular cap originates from? There's no marking on it to indicate what pressure rating it is either.

Thanks in advance,
50/50

[colcol]

Have a look at radiator cap makers websites, eg Tridon, CPC, Dayco, and have a look at the ebay worldwide for Alfa 75's, as it will have thousands of items, hopefully including radiator caps for twin sparks, p.s. don't type 75 only as you will get bits for Rover 75's as well, which you don't want, Colin.

[Sheldon McIntosh]

I've even had one that has a hose connected on top of the cap, anyone know if this is suitable for a 75 TS, and what specific model Alfa this particular cap originates from? There's no marking on it to indicate what pressure rating it is either.

I think that might be from a 164?