(08-12-2019, 03:13 AM)Ian Williams Wrote: There is though, no matter what anyone else says, more of an issue sealing modern gaskets than there used to be with traditional copper asbestos gaskets. I don't wish to scare monger but simply warn owners to beware, I have lost count of the number of engines which have been brought to me for work and once the head has been removed there is evidence of water damage to the bores and valves and seats.
I share your cynicism about modern asbestos substitutes - they just aren't as good as the carcinogenic originals. I bought some original old stock gaskets (ex Kirby Wiske) from Tony Betts and look after them with care. When I recently had the engine apart I removed the block and head as one to avoid disturbing the joint face! When I've used my spare I'm back to modern ones.
However, I'm a fan of 5920 - another disciple of Mr Jones.
C