I guess I'm late too..
Hi All,
These two quoted posts were from another forum but I thought it important enough to quote and post here.
Phil Shedd said:
I was removing the sea water impeller from a M25 this morning . I do it each fall after haul out. To my surprise the impeller was cracked on every vane. This impeller was new this spring. The one I took out was a rubber type and was still like new but was old so changed it out . This is a # 815 . I would say there are only 35 hours on this impeller.
I will be taking it back tomorrow. Also going back to rubber type (black)
Sorry the pics are not the best
Phil
bottomscraper said:
I have been using the Globe Blue Run-Dry™ Impellers for years and I have been very happy with them. I usually remove them at the end of the season and they look almost new with a little discoloration. This year every single blade was cracked. I did notice that this year the center appears to be plastic rather than metal like the older ones. Here is a picture of the impeller I removed today after 1 season (about 120 hrs). It has never run dry.
It appears that they have changed materials and that these impellers are now junk. I guess I will be going back to the black ones also. Too bad they had a good product. I was considering using their motor mounts but I think I will look elsewhere.
For years I was questioned, called to the carpet & told it could not happen about my Globe impeller failures. I finally stopped talking about them.
Personally I found the Globe impellers to be no longer lasting than the factory impellers, more money and I actually spun the hubs out of three of them. A spun hub is a tough one to trouble shoot the first time because when you open up the pump the impeller looks fine but the hub will actually spin within the impeller. The next failure the tolerances were off ever so slightly and she would not "prime". Put a factory impeller back in and she pumped fine.
Three pump gaskets later and I finally figured that one out.
Globes response............. none....
Though they did not crack like the ones above I did have one that also cracked a vane by the end of one season. It was a long time ago that I stopped using them so it seems not much has changed with the QC? I now personally stick with factory impellers.
Failures like that could endanger lives if the boat was in peril and really needed the engine. This is not to say factory impellers are the be all end all, they're not, but neither are the Globe impellers.
I think it goes without saying but check your impeller if you replaced it with a Globe brand unit as something in the compound has obviously gone awry..
