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  1. M

    First time pulling a riser with questions about condition w pics

    First time pulling a riser with questions. As a new boat owner, this is all new territory for me to pull a riser and assess if it is usable or not. Attached are some pictures that show some clogging in the passageways but most of it is easily removed with a flat blade screwdriver. The walls seem...
  2. M

    Neutra Salt System Solenoid and pully question VP 5.7 Gi-f

    Figured out the tensioner! Its the item 11 on this diagram. It's an automatic tensioner. I had never heard of one before so the mechanism behind it was unfamiliar.
  3. M

    Volvo Penta 5.7Gi Closed Cooling Question

    Well, I wasn’t brave enough to start taking off the riser or the manifold but I did remove the rubber coupling just to get a look at the condition of the iron to see if I could figure out if these things were a year old or a few years old! Here are some photos but unfortunately I did not get...
  4. M

    Neutra Salt System Solenoid and pully question VP 5.7 Gi-f

    thank you all. I do know that the Neutra salt system solenoid is separate from the pulleys I’m trying to diagnose. I’m telling you I looked for 10 minutes plus trying to figure out if the alternator pivoted on a bolt or the power steering reservoir pivoted somehow and just could not for the life...
  5. M

    Neutra Salt System Solenoid and pully question VP 5.7 Gi-f

    So I’m at my boat right now and here is a photo of all the pulleys. I don’t see anything on here that would act as a tensioner. There is no pully swinging on any kind of spring loaded arm.
  6. M

    Neutra Salt System Solenoid and pully question VP 5.7 Gi-f

    The boat I purchased has a Neutra salt flushing system installed. I made a mark on the solution tank hoping to see how much solution was added to the rinse. I held it for 45 seconds and then checked the level to see that it had not moved. I'm suspecting the solenoid shown here. It looks similar...
  7. M

    Volvo Penta 5.7Gi Closed Cooling Question

    Just read this in the manual " Temperature Gauge—Indicates engine tempera- ture. Normal operating temperature for all engines (except 8.1 Gi & GXi) is 155°-178°F (68°-81°C) and 135°-158°F (57°-70°C) for the 8.1 Gi & GXi. Engines with closed cooling systems will typically run about 30°F (17°C)...
  8. M

    Volvo Penta 5.7Gi Closed Cooling Question

    Took the boat out today to do a little more investigating. Ran it to 3200 rpm then ran back to the manifolds and risers to check temps. The top of the riser was warm to hot but I could see amy hand there for 10 to 12 seconds without worrying about burns. Feeling the sides, I could find a few...
  9. M

    Volvo Penta 5.7Gi Closed Cooling Question

    Item 9 was replaced when I did the bellow service. Thank you for taking the extra time to post an image with your advice!
  10. M

    Volvo Penta 5.7Gi Closed Cooling Question

    So I just want to make sure I understand the procedure. Since the riser might be good, I will first go buy some gaskets. When I take the riser off, Ill inspect that passages ways and surfaces. If they look good, and I deem then still usable, I will stuff a rag in the exhaust manifold and proceed...
  11. M

    Volvo Penta 5.7Gi Closed Cooling Question

    Can you clarify which fitting and Im not sure what the drive is.
  12. M

    Volvo Penta 5.7Gi Closed Cooling Question

    Thank you. I did take some readings of the exhaust manifolds and never really got too hot. Well I am a new boater, I do you have a good understanding of the weakness of a neglected cooling system and that’s why I’m trying to figure out what direction to start with since I don’t really know the...
  13. M

    Volvo Penta 5.7Gi Closed Cooling Question

    Thank you all. The boat is a 1997 with a 5.7Gi-f. The risers are cooled with sea water. The boat has been run its whole life in salt water. I did see a tiny bit of water leaking in the area you described. I tightened down the four bolts on the riser and it stoped the leak. I just been a little...
  14. M

    Volvo Penta 5.7Gi Closed Cooling Question

    Thank you for your input. I posted the results of the laser thermometer here. I did the bellow and gimbal service recently. https://forums.iboats.com/threads/temp-gauge-vs-laser-thermometer-at-thermostat-housing.741492/
  15. M

    Temp gauge vs. laser thermometer at thermostat housing

    Too advanced for me but I appreciate the suggestions. I guess running 179 degrees is horrible and not an immediate worry. I do plan on cracking open at least one riser to asses the condition of the passages. If the exhaust is cooled by seawater, and the engine cooled by coolant, Im guessing...
  16. M

    Temp gauge vs. laser thermometer at thermostat housing

    I posted a question last week about my gauge reading 180 degrees at while cruising at 3200 rpm with a closed water system. Someone mentioned that it would be a good idea to get a laser thermometer and aim it at the thermostat housing. Went to Harbor Freight and got a $30 laser gun. So I took...
  17. M

    Volvo Penta 5.7Gi Closed Cooling Question

    Just purchased my first boat and trying to make is safe for the family. Did one test run of 60 miles total and the boat ran great. It stalled when I pulled back quickly on the throttle and it looks like my trouble might be the IAC valve since the fuel pump (oem Volvo) is new . The boat is a 25...
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