4720 Coolant Leak

[oldtimer 66]

As I understand it the FEC had a as cast surface originally for the water pump mounting. Later version have a machined surface. The original cast FEC used a sealant but now there is a gasket available. There is no need to use sealant on the gasket but if you want to you can. The original sealant was a Hylomar product, with a yellow tint.

 

[jkflatt]

Thanks for the replies. Got it back together and running. Hoping they’ve improved these water pumps so they will last better than 1300 hrs.