Gt40 running at 180

[SilentSeven]

It's a good time to put on new hoses if you can. To get the wire reinforced hoses off I use a small flat blade screw driver to help peel the hose away from the fitting and then twist left/right while pulling. Sometimes some heat from a heatgun helps too. Or a bit of WD40 if oriented the right way.

The pump reversal thing is something to check...it's basically the pump mounted upside down. Still spins the right way but the housing is backwards.

[tmb]

Update - I checked downstream hoses from water pump and didn’t find anything clogging. Changed the impeller to ensure it was good. Disconnected hose from raw water pick up where it comes in from boat and started engine. My hand was sucked hard Onto end of hose. When I was removing hose from brass nozzle, the price with the arrow would rotate right/left. Could air be getting sucked in there? Or in so
e crazy twist, could the **** temperature gauge not work correctly?

any other suggestions out there?

[tmb]

This is the piece that was swiveling

[SilentSeven]

That looks like the fitting to the thru hull/ball valve. Yes, it that's loose, I would think that could be a problem.

Edit: If you can't screw it tight and maintain angles, I might apply a good bit of pipe tape in an attempt to seal it.

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[Aaren22]

Mine was running at 180 and I replaced the impeller and now it runs at 160....

[kylant]

try another thermostat.
my brand new gs22 had a bad stat, the replacement was bad as well
3rd one works they way it should

[tmb]

I'm waiting for my buddy to bring up a temp gun so we can rule out thermostat/gauge before we pull the water pick up.

My question is if we have to take apart the raw water pick up, do you try to loosen the lock nut at the hull or take apart each individual piece?

Pic is located in post 15

[SilentSeven]

I think you're asking about the thru-hull fittings in post 18? If I understand your question correctly, there should be no need to undo or remove the thru-hull fitting itself. I understood your post here to mean that there was looseness where one of the bronze fittings connected to the thru-hull. What is shown the picture (it's small, hard to see) appears to be a female to female elbow fitting that connects to the ballcock valve. I'm assuming your loose section is one side of the elbow connections....

Do I have this right?

[tmb]

Yes, it’s the brass fitting just below the elbow. The arrow is actually pointing right at it. I didn’t know if it would be easier to disconnect at the base VS taking each part off individually. There isn’t room to turn the entire piece.

[SilentSeven]

Still not certain what's loose. The strainer thru hull fitting looks like this:

https://www.ebay.com/itm/Groco-1-1-2...p2047675.l2557

If the nut to the hull is loose, that won't cause an air leak. If one of the fittings that screws onto the thru hull is loose, that could be a problem.

[tmb]

The thru hull fitting is tight and fine. It's the elbow that connects to the thru hull that is loose on the thru hull side, not the side going to the strainer.

[SilentSeven]

yeeeah....I guess you'll have to decide if the effort to get in there an tighten it up is worth it. If it's loose, it could very well be an air leak and affecting your water draw.

If it were me and it looked really hard to tighten those joints, I might look at maybe trying to put some putty/sealant/something around the joint as a down and dirty test.

Then, if the problem improved, you can feel good about stripping it apart for a permanent fix. Of course, the test is only as good as the hack.