Pretty sure I'm leaking OAT into the V of the engine. I came back from a 2 week holiday and the battery on the ZS diseasel was flat so I took the ZT 190 to work instead. I got back home and could smell that yucky boiled off water/coolant smell. Had a look in the V and it looked a little damp with a wet area on the ridge of the plastic pipe . Is that the thermostat housing?
What are my options? Should I get a new thermostat along with a metal housing ? And what brand should I go for?
Or should I first check that I don't simply need a new seal or something?
I'm guessing the inlet manifold needs to come off again?
