Even more changes required.

So.....the never ending story for the MV.
Once you drive it day to day, you'll notice just how hot the engines get quickly.
Apparently this is down to a poor design of the original technical specs of the water pumps. Apparently the housing units and the impellers had too large a gap, which meant at low revs the pressure wouldn't be great enough to get the juice flowing at the required flow.

So, MV did an upgrade impeller. Depending on what you read, some say it works, other say it doesn't.
So, you either spend on that or replace it with a DC water pump that will increase flow by 46%.

No brainer..