Evinrude overheating, weird issue

[Curapa]

Ferm, I know the right water pump is installed, I ran it all of last season without issue. I will check the stat when I pull the lower unit.

Tsubaki, I can see where that could be an issue. I know if the piss tube is blocked it will overheat, my buddies Yamaha will run all day with it clogged though.

[Curapa]

I pulled the lower unit and the water pump is fine. I pulled the t-stat covers and one has some damage to the rubber diaphragm.

I have a trip planned in a few hours and I cannot find anywhere open today to get the new stat. Will it hurt the engine running without the stats today?

[cterrebonne]

Originally Posted by Curapa

I pulled the lower unit and the water pump is fine. I pulled the t-stat covers and one has some damage to the rubber diaphragm.

I have a trip planned in a few hours and I cannot find anywhere open today to get the new stat. Will it hurt the engine running without the stats today?

you should be good since it is so hot outside right now. I would pull both stats and replace both when you get a chance. Ferm correct me if I am wrong, I am just going by memory.

[Curapa]

I did pull both stats. Gonna be on the water around 1 and I will see how she does!

[THEFERMANATOR]

If you pull one pull em both. You should be alright, but it is better to just pull the internals out and put the housings back in to act as a restrictor so you will get better water pressure. The diaphrams have to be in great shape for the system to work as everything is based off of water pressure. And just because the impeller looks good, doesn't mean it is. I couldn't tell you how many brand new ones I have changed out for overheating, and the new OEM impeller fixed it

[Curapa]

Thanks guys, I pulled the stats and ran all day yesterday without an issue. Did a lot of cruising and tubing and worked the engine pretty hard. I will be ordering a couple of new stats asap.