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Old 08-11-2021, 14:18   #1
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Belt squealing

Belt started squealing and top wheel not turning at all... But can manually move it a little back and forth.. I don't know what this belt wheel does? Please advise!
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Old 08-11-2021, 14:19   #2
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Re: Belt squealing

Water pump it is.
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Old 08-11-2021, 14:23   #3
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Re: Belt squealing

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Water pump it is.
Yep, 99.99% chance. Your water pump is frozen up and needs to be replaced.
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Old 08-11-2021, 14:25   #4
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Re: Belt squealing

I just replaced the sea water pump brand new... so the top wheel looking at the engine straight on is a fresh water pump?? Picture uploaded sideways
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Old 08-11-2021, 14:40   #5
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Re: Belt squealing

Picture uploaded sideways.

Yeah..we saw that, it looked like front of an engine sideways. Your water pump needs replacement/repair, depends.....take it out and investigate.
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Old 08-11-2021, 14:53   #6
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Re: Belt squealing

So is there a raw and a fresh water pump on this engine? Sorry to ask... No manual or anything.
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Old 17-11-2021, 06:30   #7
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Re: Belt squealing

Trace the routeof water from the seacock. Raw water will go to a pump, to a heat exchanger, and overboard. Coolant will not have a seacock, and will be routed all over the engine including through a water pump and the heat exchanger. It's what 90% of your short bits of hose do.

If when you do this you don't find a heat exchanger and only one pump, you are raw water cooled, but that is not likely.

In your picture there are two large diameter hoses coming from the pump. Does one of them go to a seacock and one to a heat exhanger? - raw water. Do they both enter the engine somewhere? - coolant.
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Old 17-11-2021, 06:40   #8
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Re: Belt squealing

Further figuring out your manual-less engine. The belt goes around tour crankshaft (bottom), water pump (top left) and alternator (right top). Man, that alternator has been around awhile. Your belt is and "AX", meaning "A" profile and cogged to go around small pulleys, which doesn't really look necessary in your case.

How about cleaning off that green and white label hidding behind the belt, find out what sort of engine this is, and get a manual?
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Old 17-11-2021, 07:29   #9
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Re: Belt squealing

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Originally Posted by tkeithlu View Post
Further figuring out your manual-less engine. The belt goes around tour crankshaft (bottom), water pump (top left) and alternator (right top). Man, that alternator has been around awhile. Your belt is and "AX", meaning "A" profile and cogged to go around small pulleys, which doesn't really look necessary in your case.
Additionally to the comments above, from the pics it appears your belt is sitting too low in the pulley groove and most likely not the correct width for those pulleys. The belt should be level w/the top of the pulley edge or slightly above (depending who you talk with about belts). Also if there is any corrosion on the pulleys where the belt will hit, you may want to take some emery cloth and sand it smooth. This will increase the life of your belt.
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Old 17-11-2021, 09:12   #10
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Re: Belt squealing

I replaced the fresh water pump.. but I don't know how to bleed the system so no air bubbles are trapped. Any suggestions??
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Old 17-11-2021, 09:15   #11
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Re: Belt squealing

Can anyone help me with suggestions on how to bleed the fresh water cycle?. New pump installed
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Old 17-11-2021, 21:04   #12
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Re: Belt squealing

All set... All bled.. running nice and cool.. thank you
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Old 18-11-2021, 06:39   #13
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Re: Belt squealing

Did you change the belt and go slightly wider?
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Old 18-11-2021, 09:03   #14
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Re: Belt squealing

Keep the same belt as I caught it in time.. still good... Thank you
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Old 18-11-2021, 10:27   #15
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Re: Belt squealing

From the pics it didn't look like the belt was riding correctly in the pulley V.


When you replace the belt next time it should sit like this:



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