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My husband removed our AO Smith pool motor from the pot/collection basket and now he is having trouble getting the clamp assembly-volute back on. This is the clamp on the outside of the seal plate and the volute and it has a knob where a screw is thread through. Any suggestions?

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Use a synthetic lubricant like magic lube and lay a bead all the way around in the groove the o-ring sits in. Press the o-ring into place causing excess lube to ooze out. Wipe your finger around the whole mess to coat the whole o-ring and then be sure to lube the o-ring on the diffuser.

Once everything is coated the large o-ring should stay in place and the pump half should insert fully into the volute so you can install the band.


Posted on Aug 31, 2010


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Thank you for posting your question here on

Check the volute o-ring for damage. It sometimes moves as you re-tighten the band around the pump halves and gets pinched. If it was, replace it. You may also need to replace the pump seal and insert if the pump is old enough to have had one. Whenever you change a motor you should also replace the seal.

If this answer does not fix your problem, please comment with additional details prior to rating the answer. Positive feedback is appreciated once your problem is solved!


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