Re: Coolant Resevoir Keeps Filling Up.
Originally Posted by diver_dave
This must be capable of creating the necessary siphon that will draw coolant back from the reservoir.
The pressure cap must also be the style that is specific to a recovery system (valve and two sealing surfaces).
If not, it won't siphon the coolant from the recovery reservoir no matter how good the neck the is.
With all working correctly, the only thing that your Closed Cooling System should undergo, would be coolant expansion from heat..... nothing else.
The expansion dumps the excess into the recovery reservoir.
If the coolant recovery system is working, at the end of the day, there should a zero sum gain.... meaning that as the engine cools down, any over-flowed coolant in the recovery reservoir will return to the H/E... and both levels should be the same as when you began.
Rick ... aka Ricardo
28' SDN F/B w/ twin Volvo Penta 5.7L DP's