Cooling rails

[V12Smig]

I am replacing my V12 on my 85 Sovereign V12 ... the old one overheated horribly 6 years back and I have acquired a 1988 unit (same electrics and much lower mileage) that I am currently cleaning and swapping over the ancillaries etc. I cleaned and painted the 88's cooling rails (the ones on ether side on the outside of the V), when I was doing this I noticed that the central tubes will rotate, quite freely... Is this normal? the ones on the old engine are fixed fast.... I don't want to fit these only to find out that they leak...

[davidr]

Hi - it would be worth replacing the seals while you have the opportunity. Previous posts on here suggest that you only use genuine Jaguar ones to avoid having to do it again!

[V12Smig]

Thank you, I'll check the usual sources for the seals, I presume it's just a question of pulling them out?

[V12Smig]

Pulled out the old seals which were hard and brittle and fitted new Jaguar "Do Not Reuse" seals which were soft and made from Rubber.. Thanks for your help here