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tpenfield replied to the thread 2016 Mercruiser 6.2L ECT DTS Axius Cooling System Issue.

Hi @Lou C - The exhaust is steel, both manifold and risers. AFAIK - The exhaust has never been inspected or replaced. The boat is in...

Jul 21, 2025
tpenfield replied to the thread 2016 Mercruiser 6.2L ECT DTS Axius Cooling System Issue.

Here are a few more graphs . . . Clearly the starboard engine shows the riser temp coming down and then going up whereas the port just...
Jul 20, 2025
tpenfield replied to the thread 2016 Mercruiser 6.2L ECT DTS Axius Cooling System Issue.

water was 76-78˚F

Jul 20, 2025
tpenfield replied to the thread 2016 Mercruiser 6.2L ECT DTS Axius Cooling System Issue.

Update for today . . . I checked the following . . . Port engine: Coolant in H.E. = full (both engines were & are full) Poppet...
Jul 20, 2025
tpenfield replied to the thread 2016 Mercruiser 6.2L ECT DTS Axius Cooling System Issue.

Also, I've been wondering what these things attached to the fittings were . . . . Apparently a check valve (8M0103408) . . . I guess...
Jul 20, 2025
tpenfield replied to the thread 454 mag mpi chuggles/stalls.

Thanks . . . thinking it may be helpful. Do you have the recording file from before? Could just use that to make the TPS graph.

Jul 20, 2025
tpenfield reacted to Fun Times's post in the thread 2016 Mercruiser 6.2L ECT DTS Axius Cooling System Issue with Like.

Today was a workday with tomorrow off but have plans in the early afternoon to go look at a car as a gift for someone in the family...

Jul 20, 2025
tpenfield replied to the thread 454 mag mpi chuggles/stalls.

Got a graph with the TPS reading during this recording?

Jul 20, 2025
tpenfield replied to the thread 2016 Mercruiser 6.2L ECT DTS Axius Cooling System Issue.

I've grabbed a few images from the Internet that show the parts under discussion. . . Above is the rear view of the engine, showing...
Jul 20, 2025
tpenfield replied to the thread 2016 Mercruiser 6.2L ECT DTS Axius Cooling System Issue.

Are you pulling an all-nighter? My California peeps will be here next week, so hoping to have the boat operational for their visit...

Jul 20, 2025
tpenfield replied to the thread 2016 Mercruiser 6.2L ECT DTS Axius Cooling System Issue.

I think I found in this picture where the 'strainer' is located. . . I'll take a look and see if that is clogged, etc. If not, then...
Jul 20, 2025
tpenfield replied to the thread 2016 Mercruiser 6.2L ECT DTS Axius Cooling System Issue.

Thank you for the reply . . . I will look into the 'strainer assembly', as that may have some residual blockages from the 5 years of...

Jul 20, 2025
tpenfield replied to the thread 2016 Mercruiser 6.2L ECT DTS Axius Cooling System Issue.

This might be a question for @Fun Times , @muc , and a few others, but all are welcome. . . This season I am seeing that the port...

Jul 19, 2025
tpenfield replied to the thread 2016 Mercruiser 6.2L ECT DTS Axius Cooling System Issue.

I’m getting exhaust over heat warnings on anything above 3600 RPM - so I assume that the risers will need attention.

Jul 19, 2025
tpenfield reacted to Bondo's post in the thread Mercruiser engines and sacrificial anodes with Like.

Ayuh,....... Welcome Aboard,...... That won't stop rust, which is a very different kind of corrosion,......

Jul 18, 2025

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