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Showing results for tags 'cooling system'.
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Hey guys, another dude asking cooling questions. This is for the stock 5.7 carb motor. Does anyone have the part numbers for the 160 thermostat and all gasket sets required? I have a small leak at the thermostat housing. Secondly I've had this cooling issue for 2 years now and it's time to solve it for good. Temp rises to 160 at normal pace, then bounces around high and back to 160 quickly, almost like it's a ground issue or something. I need to start going through the whole system to find the culprit (assuming it's not the thermostat). I replaced the raw water pump last year, didn't solve it. From what I've read I need to check the temp sensor, all ground wires, and maybe even the circulation pump? I don't know anything about the circ pump. Please help wise ones.
- 4 replies
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- cooling system
- sportster
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Lsv23 no water suction - overheating
Lsv23malibu posted a topic in Maintenance, Tech Info & Troubleshooting
Indmar monsoon 350 5.7 overheating. I can see no suction and no water through clear plastic flush pro valve. New raw water pump w new impeller, checked oil cooler little inlet screen, fresh water flush cap on back screwed on tight, inlet grill and hose is clear coming from bottom of hull. Thermostat looked a little stiff so i removed for troubleshooting. Not getting any water flow. Fresh water hose connected seems to work fine and engine stays cool... but probably working because of hose water pressure.- 14 replies
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- overheating
- perko
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Metal flakes on block port side drain
aaronbrooks posted a topic in Maintenance, Tech Info & Troubleshooting
Hey guys, I recently got a 99 sportster with the 5.7 carb. engine. I was draining the water for winter and the plug on the port side of the block had a lot of metal flakes attached to it. Does the indmar 5.7 310hp engine have an internal water pump as well or is that just passageway deterioration? I have had issues with cooling this first year with the boat but I attributed it to a bad gauge or sensor. The raw water pump and impeller were replaced in the spring. Thoughts? -
"Priming" the cooling system before start up?
JDoidge92 posted a topic in Maintenance, Tech Info & Troubleshooting
Hey guys! I have a quick question regarding the cooling system on my '94 echelon. il give you the back story first... So last weekend I bought my first boat, took it for a test drive and everything ran beautifully. I took it home, buffed the hall and tidied up some electrical over that week. The following weekend I took it out for my first time as a new boat owner. She was running a little rough (I realize now I wasn't giving the boat enough throttle/ fuel) Anyways took it for a quick loop to warm it up (about 1-2 minutes) and a alarm started going off, turns out the impeller went and no water was circulating through the system. Temps got to about 230+ before I released. (again new boat owner so this was all new to me). I shut the motor off to let the motor cool down and slowly limped the boat back in in short intervals to let it cool down. When I got back to the house I took most of the cooling system apart (hoses) and found what I think is 98% of the grenaded impeller packed in on the cooled side of the heat exchanger. Well I'm at it i'm going to change out the thermostat as a maintenance routine so I know when it was last done (this is where one of my questions comes in below). So thats the back story of all this. here's the question! - First do you guys thing I should be worried about anything running the motor that hot? (please say no so I can sleep at night) - I changed to the thermostat well replacing the impeller and noticed under the T-stat was bone dry, Should I dump a bucket of water down there to "prime" the system before testing the system? Any other tips/ tricks you might has i'm all ears! Thanks so much for the help!- 5 replies
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- cooling
- cooling system
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