2001 SAN temperature running around 180... Hot?

[cal1319]

Thanks A0128, the only other thing I can think of is trying a new water pump and replacing the hoses at some point.


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[kend]

For reference, my '01 GT-40 stays around 150-160 in 80 degree water air in the 90's. I think the thermostat would be the culprit; I've never changed mine since it works so I assume its stock. Also, make sure oil level is good since a lot of cooling comes from oil.

[cal1319]

Hi Kend, Thanks for the heads up! The thermostat is new (160). I cleaned out the thermostat housing as it has some rust in it. Back flushed the hoses as well. I checked the oil level and it its correct, and I maintain oil pressure (around 40) under load. I'm thinking the water pump may need to be replaced in the near future, or possibly I have an air leak somewhere, possibly may need to replace all the hoses.

[kend]

thermostat is new (160)

They are easy to get in upside down
It's not so far off that I would lose a good ski day because of it; but I think these motors run pretty consistently at 160 so something seems at least a little bit off.

[cal1319]

I think it's in right... Triangle part sticking up, that's how the old one was in there.


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[surroundsound64]

No. You want the 160 degree version for the FI engine. The 143 degree model is for the carb'ed motors.

I guess I miss read your OP. It should cool down to around 160. Sorry for the confusion.

[Paxdad]

So yesterday evening while out on the water and for reference/ comparison I really watched my temp on my 08 210 with EX343 (160 thermostat). Max temp was 156 with 79 degree fresh water running 2600# ballast and 7 people on boat surfing (3400 rpm for 4 hours). Air temp was 89. So i would say you are running on the warm side.

I have a friend with an 03 with the EX and he fought the same issue you describe until he finally replaced the sea water pump.

[cal1319]

Thanks for all the feedback everyone! I just ordered the new pump and new impeller. Well let everyone know if this solves the issue! Thanks again!

[cal1319]

Just to update everyone. The pump was the issue. Got it put in last evening and took the boat out for 15-20 min, stayed right around 160! Just want to thank all of you for your help. BTW, if anyone needs to get a new pump or impeller you should check out https://marinepumpdirect.com/ I got the pump, two impellers and shipped next day delivered to my house at 9AM for $425 which I think is a pretty **** good deal. Packaged everything professionally. I also put some silicone grease on the strainer incase there where any air leaks and switched out the worm gears for t-bolt clamps. Will be doing a full test this weekend and will post back if all issues are gone. Thanks again!

[Paxdad]

That is a really good deal especially with overnight delivery.


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[cal1319]

So just to update the boat is running as it should ran a solid 160 all weekend long thanks again for all your help!


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