Hi,
I have a late model raw water cooled A4 in my Bristol 32. I've just replaced the water jacket plate, completed an acid wash, and put in a MMI late model thermostat. Prior to putting in the thermostat, after the acid wash, I ran the engine for several hours to flush the system. The engine never got much beyond 110 degrees or so. Now, with the new thermostat installed, the engine is wavering between 180 - 200 degrees. Before the work the engine was plumbed with a bypass valve for the hot water tank heat exchanger, which I adjusted to keep the engine at ~ 140 - 160. At the moment I'm just running it with "normal" plumbing, with the hose from the T fitting directly into the thermostat housing.
I would have thought because the engine ran cool without the thermostat the water flow was pretty decent, but maybe there is some blockage? Ideas?
Thanks,
Chris
I have a late model raw water cooled A4 in my Bristol 32. I've just replaced the water jacket plate, completed an acid wash, and put in a MMI late model thermostat. Prior to putting in the thermostat, after the acid wash, I ran the engine for several hours to flush the system. The engine never got much beyond 110 degrees or so. Now, with the new thermostat installed, the engine is wavering between 180 - 200 degrees. Before the work the engine was plumbed with a bypass valve for the hot water tank heat exchanger, which I adjusted to keep the engine at ~ 140 - 160. At the moment I'm just running it with "normal" plumbing, with the hose from the T fitting directly into the thermostat housing.
I would have thought because the engine ran cool without the thermostat the water flow was pretty decent, but maybe there is some blockage? Ideas?
Thanks,
Chris
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