#1
IP: 129.176.151.11
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Weep Hole Leaking After Impeller Replacement
Replaced the 8-year-old impeller on my MMI 502 flange pump with a new impeller from Moyer. With the new impeller in place and the engine running, there was quite a bit of leakage through the upper and lower weep holes. I put the old impeller back in and the leakage stopped.
The older impeller seems a tiny bit thicker than the new one. It also has a 8(?)-sided metal ring embedded in the rubber. In the replacement, the ring is circular. Do the impellers expand over time? I've searched the forum and only found this possible clue: "Don't forget about the impeller thickness discrepancy that emerges from time to time." Thanks in advance for any ideas. Bob Moriarty Ox 33-1 Jax, FL |
#2
IP: 129.176.151.11
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After posting this, some relevant similar threads appeared at the bottom.
I've learned: 1) Impellers can expand over time. 2) Expanded impellers can wear away and increase the size of the cavity/chamber(?) that contains them. 3) Soak the new impeller in Marvel Mystery Oil. That stuff has so many uses. I brush my teeth with it. 4) Measure the new impeller. It should have a thickness of 7/8" 5) Try running for awhile with the new impeller and the leakage. Maybe the impeller will expand and the leakage through the weep holes will stop. Bob Moriarty Ox 33-1 Jax, FL |
#3
IP: 174.58.84.3
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As far as I know, the weep holes are for water to leak out when the seal fails. The impeller should have no effect on this.
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