Engine temp??

[jdub667]

Got a temp question. So first trip out in my 2011 242 with the 409, I primed the system at the house prior to leaving. Idleing around the marina and to and from the houseboat engine temp was around 175. Cruising at 4100rpm it was around the same at the end of the day idleing back to the marina the check eng warning eng temp came on the screen looked at temp and was about 195 so I put it in neutral and rev it up a little and it dropped back to 175. When I got home I pulled the impeller just to check it and it looked brand new as it should. My old supra had the 325 and it ran 160-170 all the time, does anyone know if this is norm for the 409? the book says 180 is still in the norm but just doesnt make sense that i would have to rev the motor to cool it back down idleing around?

[docdrs]

Check all the clamps to make sure it isn't sucking any air, make sure there is a rubber gasket in the water strainer if you have one, if you don't you could look at the tranny cooler. Is this the first outing outing for the boat or first time this year?

[jdub667]

First trip since i bought it had 20hrs. Had it winterized in Havasu this is its first trip out. No strainer, whats up with the tranny cooler?

[kvand347]

First trip since i bought it had 20hrs. Had it winterized in Havasu this is its first trip out. No strainer, whats up with the tranny cooler?

Pull the hose on the top of the tranny cooler. There are holes there to trap any large debris. Since you don't have a strainer, you may have sucked something up through the thru-hull and it's partially blocking the flow of water.

[jdub667]

Thanks, will check that tomorrow. My last supra had the strainer and for how pimped out this one is iam suprised it don't. Hope its just some blockage.

[kvand347]

I am surprised it didn't come with one either. I'd consider putting one one just for piece of mind. When I run in our WI lakes the strainer is usually clean at the end of the day. When I run on the WI river, it usually has picked up some crud.

[jdub667]

Well pulled all water lines blew out trans cooler just a little grass looking stuff but nothing that was obvious. Only thing i found is the hose that connects exhaust manifold was barely on the fitting so I rerouted and got a good fit but dont think that would be the culpret but could have been sucking air? So I guess I will call supra tomorrow and see if I should take it in. Not exactly what I wanted to have happen out of a top of the line supra first trip out.

[DAFF]

More than likely a simple flow issue from debris in the water.

[jdub667]

Well I have done everthing I can think of from new impeller to pulling all water lines and blowing them with an air gun and she still gets warm....So off to Pheonix I go next week to have the dealer see what the problem is. They said may be the t/stat but since its under warranty I will let them dig into it, just sucks I have to drive 6 hours to do this. Hope this cures my problem...will post with hopefully a resolution soon.

[jdub667]

Well just got home from Pheonix the guys at AWS were good guys, they found that after I winterized and blew the water out of the heater and when I ran the boat recently it had a air pocket in the heater core. So to all that have the heater you should prime by pulling both hoses off t/stat housing and using water hose in one till you get good flow out the other then put back on. Sucks I had to drive 7 hrs one way to find this out but got the warranty swapped and all good now. Ready to hit the lake this weekend.