Talk Morgan Forums Morgan Sports Cars Classic Morgans (pre-CX) New Roadster-suspension,cooling,radiat or,sump Qs

It can be difficult to accertain the heater routing as the feed is often from a different point on the head to the bypass, which is why I said effectively in parallel to bypass.

If I understood it correctly it appears that Dave's diagram is not correct as it shows the thermostat in the coolant return from radiator bottom