Suspected H/E Leak Follow-up

[FreeBeeTony]

At the end of last season I suspected a H/E leak. Found the H/E to be OK.
​Wound up replacing ALL hoses involved in the coolant side of the cooling system.
My conclusion is the the "new" Mercruiser block-off gasket is not adequate, See attached pics not in any order.
​I am going old school with the (2) Gaskets and SS plate and Permatex Aviation Sealant











​I'm just not comfortable in what I see the I remove the risers.....

 

[alldodge]

How did the manifolds clean up?

 

[FreeBeeTony]

Think I need to back up a bit here.
​At the end of last season had A suspected H/E Leak on the freshwater side.
I also discovered what I thought was a P/S cooler leak, believe this was due to a rotten/missing clamp,
​Anyway had to remove the stb manifold to gain access to the P/S cooler.
​At this time I removed the riser from the mafold and replaced the gaxket with ines from the previou post.
​Haven't tested the whole system together yet. The manifolds cleaned up fine.

​just don't have good feeling about these new block off gasket for the wet joint manifolds. in

 

[Bondo]

Ayuh,..... If the manifolds, 'n risers clean up nice 'n smooth clean metal, I don't really see a problem,....

Just make sure the gasket surfaces on the castin's are flat, clean, 'n wide,....
A flat file is My choice of tool for cleanin' 'em,...