[DML] Re: Leaking Antifreeze

["content22207" <brobertson@xxxxxxxxxxxx>]

The weep hole on the water pump is readily visible -- if it's coming
out there, should be easy to see just by running the engine.

If the leak is under the intake manifold (Valley of Death), the entire
top surface of the engine is probably full of coolant. The bell
housing acts like a dam in the back, but in the front it will run down
the timing chain cover and drip off the oil pan *AFTER* those casting
recesses are full.

Are several possibilities under the intake manifold:
- Back of the pump
- Any of 6 hoses (not the big radiator lines)
- Heater core return tube
- Distribution pipe O rings
- Distribution pipe sensors
The heater core shutoff valve is located over the transmission, so I
doubt if it's coming out there. Takeoff barb is under the intake however.

I fully concur with a *COMPLETE* cooling system overhaul. When I
bought my car, everything under the intake manifold was factory
original. Routine maintenance had been performed on the visible parts
only. I think this may be endemic to too many DeLoreans currently on
the street.

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, "David Teitelbaum" <jtrealty@xxxx> wrote:
> The easiest way to find coolant leaks is to pressurize the cooling
> system with a cooling system pressure tester. Leaks will then be
> obvious. 





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