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arcticzale wrote: Thu Aug 30, 2018 4:52 pm New to the forum, not to boating or mechanics- just ran through this issue myself. Is it just a high speed overheat?
My issue was actually the paint on the drive diverting watwr away from the water intake of the outdrive. Repainted the drive and that solved my issue. I got new sensors for the manifold risers, checked the exhaust riser ports and replaced the riser gaskets, but didn't install the sensors. Painted the drive unit before I installed the sensors and it has been perfect. Another issue can be the thermostat or the hose from the drive to the transom could be cracked. Sorry if this is redundant and you've posted elsewhere about this, just trying to help.

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How does your drive paint look? I have the 8.1GXi and my drive was in need of some love. Here's a before picture :

19023353_10213438226095277_9119214607152592886_o.jpg

And after:
20180603_134519.jpg

no_rulz25 wrote: Thu Aug 30, 2018 3:55 pm As most of you know from previous posts that I’ve been overheating recently and everyone agreed that most likely it is the impeller. I replaced the impeller today and this is the old impeller I took out.

0570B8DF-78B3-4BC7-935B-CA2EE2C712E7.jpeg
A9D66FAC-8BA3-4343-A62F-AAD73AA01ACE.jpeg

So, it looks like the impeller was not the issue!! So thinking the water pump may be bad. Thoughts?

AsLan7 wrote: Thu Aug 30, 2018 10:37 pm

no_rulz25 wrote: Thu Aug 30, 2018 3:55 pm As most of you know from previous posts that I’ve been overheating recently and everyone agreed that most likely it is the impeller. I replaced the impeller today and this is the old impeller I took out.

0570B8DF-78B3-4BC7-935B-CA2EE2C712E7.jpeg
A9D66FAC-8BA3-4343-A62F-AAD73AA01ACE.jpeg

So, it looks like the impeller was not the issue!! So thinking the water pump may be bad. Thoughts?

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Hopefully you don’t go down the same overheating path I went down last year NR_25....


viewtopic.php?f=47&t=527&hilit=Overheating



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Big Block Power wrote: Fri Aug 31, 2018 6:29 am

AsLan7 wrote: Thu Aug 30, 2018 10:37 pm

no_rulz25 wrote: Thu Aug 30, 2018 3:55 pm As most of you know from previous posts that I’ve been overheating recently and everyone agreed that most likely it is the impeller. I replaced the impeller today and this is the old impeller I took out.

0570B8DF-78B3-4BC7-935B-CA2EE2C712E7.jpeg
A9D66FAC-8BA3-4343-A62F-AAD73AA01ACE.jpeg

So, it looks like the impeller was not the issue!! So thinking the water pump may be bad. Thoughts?

.
Hopefully you don’t go down the same overheating path I went down last year NR_25....


viewtopic.php?f=47&t=527&hilit=Overheating



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I hope no one goes through what you did last year. I know I would not have. Your a trooper that's for sure.

cmattj wrote: Thu Aug 30, 2018 8:27 pm Well well. It’s looks good with just some wear marks.

This is is closed cooling ( anti freeze bottle)? Without a code reader it will be difficult to determine if it’s fresh water flow ect exhaust or engine temp.

You can diag visually with a ir temp gun on manifold and engine but your running drive down and on muffs for water.

Put a new “ Volvo” impeller in it and let’s get a temp gun for running it.

It idle overheated and high speed overheating so it’s a flow issue or if closed system engine pump flow.

Are the exhaust manifolds original and do you flush it every outing with freshwater?

You need to determine water flow out the back on muffs before we look for engine pump or manifold restrictions

smokymance wrote: Wed Oct 24, 2018 9:52 pm Is it me or do the impeller fins look like they weren’t all pointing the right way. Maybe one of them was pointing the wrong way not making the propoltion in the housing not as efficient as it would have if all the fins were “trailing” the correct way. When I took my impleller off, all the fins were biased as trailing arms agains the rotation of the impeller. Just speaking out loud here.