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    5.7 Volvo Penta Overheating at Idle

    Thank you @Lou C !!!!!
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    5.7 Volvo Penta Overheating at Idle

    Does anyone have a picture of the water hose that goes from the oil cooler into the transom? Want to get a visual before I go in and try to swap out - hose coming in today. Thanks
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    5.7 Volvo Penta Overheating at Idle

    2005 5.7 GXi-F
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    5.7 Volvo Penta Overheating at Idle

    Is the “oil cooler” an engine oil cooler or power steering oil cooler? I’ve seen both online. Does this serve as a heat exchanger to warm sea water before it goes into the impeller?
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    5.7 Volvo Penta Overheating at Idle

    It’s #19
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    5.7 Volvo Penta Overheating at Idle

    Turns out it was the hose going from oil cooler into transom. Anyone have a utube on how this is changed?
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    5.7 Volvo Penta Overheating at Idle

    Does anyone have any experience with the circulation pump? When I pulled mine off it’s fun freely like a wheel. However the new one that I purchased had a slight resistance/felt nice and “tight”. Could the old one I’ve been bad?
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    5.7 Volvo Penta Overheating at Idle

    I pulled a Johnson out of it but went Volvo Penta for new housing and impeller. Hoping this works!
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    5.7 Volvo Penta Overheating at Idle

    Thanks @Lou C !!! It’s an 05 so I’m doing water circulation pump too. We’ll see what happens when I take it out tomorrow.
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    5.7 Volvo Penta Overheating at Idle

    I also did water test - sealing off drive water intakes with water hose to impeller intake hose- to rule out leaking nipple. I had no drips coming from drive area whatsoever.
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    5.7 Volvo Penta Overheating at Idle

    Yes copper tube was ok.
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    5.7 Volvo Penta Overheating at Idle

    What is the circle in middle of impeller housing? Could that cause overheat at idle?
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    5.7 Volvo Penta Overheating at Idle

    1 o ring confirmed
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    5.7 Volvo Penta Overheating at Idle

    Thank you - quite a bit to go on here.
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    5.7 Volvo Penta Overheating at Idle

    @Lou C thank you for the detailed info. 1) will check nipple in transom mount (I assume it’s accessible without removing drive?). 2) rubber grommets were replaced in lower drive unit (attached to copper tube) 3) will check for blockage in t stat housing 4) will check for air leak 5) shop did...
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    5.7 Volvo Penta Overheating at Idle

    @alldodge is the hose/fitting on the back side by the drive or inside engine compartment?
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    5.7 Volvo Penta Overheating at Idle

    @alldodge the risers are super hot to the touch as well as oil filter housing. I took it back to the shop that did the impeller and told them what it was doing. They said they check the impeller and then they went to thermostat. When that didn’t work I took it back and that’s when they said it...
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    5.7 Volvo Penta Overheating at Idle

    @alldodge are you thinking it’s not that hot? When I said oil pressure dropped I meant further than normal at idle when hot - around 10 lbs. @kenny nunez it’s an 05. I believe it’s a VP sx. It’s been happening since the shop did offseason maintenance: new impeller, motor and drive oil and...
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    5.7 Volvo Penta Overheating at Idle

    My 5.7 VP overheats at an idle only after a run (never from cold start up). I can run up and down the lake all day at 170 but when I bring her to an idle/in no wake it goes up to 220 but no alarm or limp mode. Get going again at 3k+ rpm and I can watch it come down. Shop changed impeller, t...
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    Volvo Penta 5.7 Overheat Please Help

    @ Don S - where can I find a link to the overheat article?
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