Is anyone else having an over heat issue with their Evinrude 300 G2? Running in clean water, jack plate down, trimmed under with 30psi of water pressure and still get a hot code when I get up to 5K RPM. Below 5K the temp is higher than average but not hot. Evinrude has a coolant system upgrade with larger tubes to move water out of the engine faster. Just curious to see how many have seen this. Thanks for any feedback.
Evinrude 300 G2 Getting Hot
o_brother
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Is anyone else having an over heat issue with their Evinrude 300 G2? Running in clean water, jack plate down, trimmed under with 30psi of water pressure and still get a hot code when I get up to 5K RPM. Below 5K the temp is higher than average but not hot. Evinrude has a coolant system upgrade with larger tubes to move water out of the engine faster. Just curious to see how many have seen this. Thanks for any feedback.
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Sounds to me like a design problem that evinrude should fix for free.
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With a new motor I would take it back and let them figure it out. Might be as simple as set up on gauges not correct, or could be faulty water pump, etc...
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I know on the first Gens you had to pull the sending unit from the head and relocate it by attaching a small nipple with a small tube to eliminate electrolysis in saltwater. It would prematurely set the alarm off. Surely they don't still have that design?
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From day one, have you always had just 30 psi?? Most of the ones I have sold have 40 plus! Do u ever start the engine with the water pump out of the water? Raised up on jack plate starting engine, pump will not prime itself and will put years of wear in 30 seconds and even melt impeller and housing.It will do it so fast, you won't believe it.
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Its in the shop and the computer info was down loaded and sent to Evinrude. No indication the water pump is the problem. Evinrude says the high flow water kit will fix it. I'm just asking if anyone else has had this issue and if so, what did they do...
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I just recently got the new hi flow screens in. They may help your situation. There is also the aforementioned larger tubing kit for more flow getting hot water out of the block
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Mine has had 30 to 35 psi since day one. I haven't had an issue with it priming. I always start mine with the motor all the way down on the jack plate.
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That is absolutely more important on a G2 than a gen1. Always put the water pump under water on a G 2
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I've had this boat on the water 5 or 6 six times and didn't have this problem until the last trip. The alarm came on and I backed off the throttle. It cleared in about 30 sec with the motor running. I put it in reverse and throttled it a bit to see if I picked up some grass or plastic bag. Nothing. I switched my ICON gauge so I could watch the temp and water pressure at the same time. Started down the ICW again with motor all the way down and trimmed under. 4500 rpm the temp was steady at 185. When I ran it up to 5K the temp stared rising until the alarm came on at about 195.
I had an issue with mine overheating. I took water pump apart and found that the alignment ears on the cup had sheard off and the cup had turned restricting flow to the engine. It still had good water pressure also. I was able to run engine at low rpm without overheating.
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The Evinrude E-TEC G2 has additional temperature sensors that the older E-TECs did not have. Your dealer can hook up the laptop and see exactly where the overheat condition is occurring.
There is an exhaust cooling water nozzle that can be oriented incorrectly and set off an overheat alarm. Your dealer can check the engine serial number to see if the bulletin applies to your motor. Inside the powerhead are a few screens to catch cooling water debris and one or more could be restricted.
There is an exhaust cooling water nozzle that can be oriented incorrectly and set off an overheat alarm. Your dealer can check the engine serial number to see if the bulletin applies to your motor. Inside the powerhead are a few screens to catch cooling water debris and one or more could be restricted.
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Yeah, mine was #3 cylinder. All that info was sent to Evinrude.
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My engine didn't come back with the bulletin for the nozzle issue. They haven't received the kit yet but I will pass along the screen info. Thank you.
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I am going to have them check the pump as well when they get into adding the cooling kit. Thank you for the info.
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