by Esteban » Fri Jan 17, 2014 12:51 pm
The next generation of Patrols that followed the G60, the MQ or 160 series came without that type of vent, that's supposed to act one way, letting air out, and preventing water from going in.
Instead, what they did on the MQ, was a vent plug with a long hose to a level above fording depths. That's what my brother did and modified his Patrol. From what I recall, he suffered a lot less from oil leaks after that, and never got any water inside. Just a thought in case you don't find the right vent/plugs.
Good luck.
Owner of the same Patrol since 1967