temp. for 1992 Mariner 150 Magnum II

[stumpie2]

no t-stats is the worst thing you can do to an engine. although the gauge says cool or normal the engine is saying different. with no t-stats the water has no restriction therefore it is not staying in the engine long enough to "soak" up the heat and remove it from the engine. the water passing the temp sensor is cool because it hasnt been in the block long enough to warm up there for the gauge is showing a inaccurate reading. this will almost always result in a very short engine life or a very expensive repair bill