Aston Martin DBS heater valve fluid test

Part two of this rare heater valve repair. Here we are testing the fluid diaphragm portion of the valve to confirm the valve opens full and closes tight--having a more complex diaphragm retainer that uses a bolt circle steel plate to hold the diaphragm in place. No leaks! The test engine is on my 1951 Ford pick up that I made the original front end tip up for ease of access. We also test A and B circuit generators on the truck--making the old girl part of our team. HA!
See the other video to complete the message

Видео Aston Martin DBS heater valve fluid test канала James Simpson