Mariner 40hp cooling system
I took my new Mariner 40hp out for a little ouoting today. Started it up, an a small but steady stream of cooling water came out of the tell-tale. After a little whilse it stopped all together. I stopped the engine, checked the water intake, and all seemed well. Started her up again, and same as before - small steady stream. Then same happened again - stopped after a short time (20/30 seconds maybe). The stream of water coming out when the dealer demostrighted it to me was much bigger (or so I remember).
Would I be right in saying that Mariner outboards have a thermostatic cooling system in them, so that the water will only really start pumping if the engine warms up (I did feel the cowling but this felt stone cold). The engine wasn't running for long in the end, as the water looked a bit too choppy when we got to the mouth of the harbour, so turned back.