Originally Posted by NoGaBiker

Basically, there are 6 pipes that exit the engine and run to parts of the cooling system. The manifolds are cast aluminum, and the pipes insert into them and are glued — yes, glued — in place. When the glue lets loose on one, bye bye. So you pull the motor (you can’t get to 3 of the pipes with it in situ) and either weld them together or drill through the pipe and insert a small bolt and locktited nut straight through the middle. Problem solved (for about $2300 labor, thank you very much.)