bell & gossett circulator


Old 01-16-04, 03:45 PM
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bell & gossett circulator

I have a oil fired forced hot water / heater one zone boiler and the circulator pump has started to make a squealing noise which vibrates through the pipes and is heard throughout the whole house, it can get real loud once in a while. It happens when the the circulator motor has been running alot due to the recent northeast arctic blast and will go away if i add some oil to its two chambers but the noise keeps coming back. I have added oil three times already and seems to come back very early in the morning when it is the coldest, any suggestions on if this circulator is on it's way out or is there something else i can try? I also have this boiler serviced every year. any feedback would be helpful. thank you.
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Old 01-16-04, 04:00 PM
hvac4u's Avatar
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Location: NW atlanta
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sounds like the bearings are going out. contact the mfr to see if the pump is rebuildable. those things are expensive!
Old 01-16-04, 04:18 PM
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Lightbulb boiler

Have you use a # 10 oil on the pump there dont go with the 3 in 1 oil for it.As cold as it is I think Id get a pump for it now.Be fore the week end. You can fix the old one for a back up later. . But a taco one should fit or the Bell and Gossett check for the flanges size that you have. Can you play with the motor shaft and see any playon the motor there on that B&G or it could be the shaft seal on the pump ED
Old 01-16-04, 07:30 PM
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I don'tnow how much oil you have added but the felt wick holds almost 3 ounces. That is a lot of drops of oil. Take Eds advice and do NOT use 3in1 oil. Add #10 oil and put a pan under the pump to catch what may not be absorbed by the wick. The squeal will probably go away. If not, plan on replacing the pump. Don't waste time on repairing it.
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