4.0L '95 NF11 removal
I found a leaking welsh plug on the exhaust side of the block, while replacing an exhaust gasket. Have put new brass plugs on the exhaust side of the block and wanting to replace the inlet side as well. Have been trying to remove the complete intake manifold without splitting it apart, as I don't have a long 6mm hex headed socket but there is a bracket that holds the water pump to heater metal pipe attached to the underside of the I/L manifold. Also I can't undo the flex fuel rail I/L hoses because there is no room to move a spanner. Does anyone have any tips for the easiest way of completing the job? No, I don't want to take the motor out.
Also, a couple of other questions:
1/ Any idea why, invariably it's always the centre welsh plug which fails first. I suspect that it has something to do with electrolysis/current flow through the block.
2/ How can you limit the corrosion buildup that occures under the radiator hose where it clamps around/onto the thermostat housing? (using inhibiter)