Perkins T160 running cool
We have twin Perkins engines on our 44' Gulf Star trawler. I noticed that the port engine was running significantly cooler than the starboard last summer and followed up on suggestions obtained from this site. Underway at about 1800 rpms the starboard sets at about 180 degrees on the gauge and the port about 130. We have recently had the heat exchangers on both rebuilt and the port thermostat removed and "bench tested." It worked properly. Today in the slip I ran the engines about 45 minutes with the following results: gauges (both lower drive station and bridge): port about 130, starboard about 170, laser gun: port 127, starboard 168. Otherwise, both engines seem to run a sweet as cream. Would appreciate any suggestions.