???
I started but did not finish. Anyway my questions would be what others have already asked. In the water or on muffs or maybe the flush port if the engine has one? With both engines overheating it's likely to be the water supply. If on muffs while the engine is running is the garden hose round or sucked flat (not enough water).
They are new so very unlikely.
The boat is in the water and these motors are not new installs just the manifolds, the risers, the heat exchangers, the transom assemblies and the raw water pump as well as the front circulating pump. I recently took out the thermostats and the port side ran at 165 but the starboard side still boiled. A compression test revealed low compression of 120, 120, 130, 140, 140, 150 , 150 and 155. No water on plugs, no antifreeze in oil. The IR gun only showed 199-225 at the thermostat housing but 160 at risers.
What is the right gasket? The standard one that comes with the risers no?
The plumbing is stock fed from the dpxr drives. I was considering seacocks and strainer for next year but will it help?
Ayuh,..... Welcome Aboard,..... Addin' heat exchangers to anything but brand new motors, is a bad idea,.....
No, and you would have to replumb your PS cooler
If it's full closed cooling then the gasket between the exhaust manifold and riser blocks any cooling water flowing. If it is RWC then the gasket will allow water to flow between the exhaust manifold and riser. I have also seen where the proper gasket was used for RWC but too much black Permatex was used and it blocks the water flowing.
Not needed if the cooling system maintenance is kept up
