Motor Mount Boss

[WESTERNAERO]

Can a welder build the entire area up with a big blob of weld, then drill and tap it? I am not sure if that will work with cast iron. The rear plates use 4 bolts for each side (which includes the water crossovers).

If the plates go all the way to the water ports then you are in much better shape. I would still have it welded but i don't think it's all that necessary. No you really can't build it up with weld but you could make a small chunk and have that welded on. It was repaired before, you can see where it was drilled in areas to get the JBweld to stick better. I would still drill and tap all the way thru.

[78Southwind]

If the plates go all the way to the water ports then you are in much better shape. I would still have it welded but i don't think it's all that necessary. No you really can't build it up with weld but you could make a small chunk and have that welded on. It was repaired before, you can see where it was drilled in areas to get the JBweld to stick better. I would still drill and tap all the way thru.

Yep...they go all the way to the water ports.

[WESTERNAERO]

Are you handy with a jig saw or do you have a band saw? I would make a new motor plate that is one piece. Connected in the middle so those aren't trying to spread apart. May be the reason that boss is blown out to the side to begin with.

[WESTERNAERO]

Something like this maybe.

[78Southwind]

That's the first thing I thought since my jet boat's motor plate is a one piece with an arch. They used a two piece so that there would be enough room to hang the water pump and the alternator on each side of the engine.

[WESTERNAERO]

Water pump? Do you have a sea pump, not a cam driven pump?
never mind your pics came up.

[78Southwind]

Water pump? Do you have a sea pump, not a cam driven pump?

Yep...Sea Pump. This engine was originally in a Cat.