In a message dated 11/29/00 5:57:23 PM, meed@MBARI.ORG writes: << How can one differentiate a leaking rear heater o-ring from a leaking rear heater core? >> Ed, With the hoses attached, extricate the core from its housing. Then, run the engine until the coolant is good and hot. When at operating temperature, the source of a leak in any hydronic system will be obvious. I hate to end on a dour note but, unless someone careless previously worked on the heater, you most likely have a leaking core. Rich |
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