Mozambique
Full Access Member
The coolant leak saga continues!
To recap, water pump, crossover pipe and heater manifold pipe replaced in August in response to long term slow leak that was progressing. That seemed to fix it.
Now noticing another even slower leak. Level drops bya few mm after 100 miles.
This is where I admit that previously during bleeding I did not use the correct technique initially, resulting in the temperature gauge reaching max temp momentarily. Stomach churning pondering if I cooked the head gasket? No mayonnaise on oil cap, but figure minor leak may not show. No white or black exhaust on start up, no bubbles in coolant tank, no misfire. Is there a definitive method of diagnosing a failing head gasket?
The optimist in me says could be weeping radiator, hoses etc. A pressure test done by garage in August failed to detect leakage from crossover pipe, so have little faith it will diagnose smaller leak. What about UV dyes - has anyone experience with them. Are they coolant-type specific?
Thanks in advance as ever!
To recap, water pump, crossover pipe and heater manifold pipe replaced in August in response to long term slow leak that was progressing. That seemed to fix it.
Now noticing another even slower leak. Level drops bya few mm after 100 miles.
This is where I admit that previously during bleeding I did not use the correct technique initially, resulting in the temperature gauge reaching max temp momentarily. Stomach churning pondering if I cooked the head gasket? No mayonnaise on oil cap, but figure minor leak may not show. No white or black exhaust on start up, no bubbles in coolant tank, no misfire. Is there a definitive method of diagnosing a failing head gasket?
The optimist in me says could be weeping radiator, hoses etc. A pressure test done by garage in August failed to detect leakage from crossover pipe, so have little faith it will diagnose smaller leak. What about UV dyes - has anyone experience with them. Are they coolant-type specific?
Thanks in advance as ever!