My san has been running really cool the last couple times out so Im pretty sure I need to change out my thermostat. So my question is which particular thermostat will I need? I have a PCM Excalibur, and can I pick one up at a local marine shop or am I going to have to order it online. Also how should I go about changing it out, I would like to do it myself cause I dont want to be boatless for over a week. Ive used it a few times with my bad thermostat should I be worried about any damage to the engine from cool oil or am I in the clear?
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