are 3.0L riser manifolds know for leaking

[purpony]

Just as the title says, is a leaking 3.0L riser manifold common?

thanks

 

[midway]

No. What age is it, it may be time to change it. They do not leak normally, salt water makes them leak quicker than fresh due to corrosion from the salt. You did not give your boat info and location in either your signature or profile and without that and a little more info there is no way to give a good answer.