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-   -   Globe Blue Run Dry impellers (http://www.sailnet.com/forums/diesel/95600-globe-blue-run-dry-impellers.html)

imiloa 01-10-2013 11:39 AM

Globe Blue Run Dry impellers
 
I'd like to hear comments from anyone who has used the Blue Run Dry impellers from Globe Composites. I have an older Sherwood raw water pump on a Universal M-15 that I recently replaced the rubber impeller on that and now I need to pick up a spare. These blue impellers are supposed to be able to run dry for up to 15 minutes. Do they work as well as/better than the rubber impellers? Do they really last longer? Thanks for any comments.

BarryL 01-10-2013 03:05 PM

Re: Globe Blue Run Dry impellers
 
Hello,

I tried one - it lasted less than a year in my M-21 with Oberdorfer pump, the vanes were cracked where they connected to the center. I usually get 2-3 years from the Oberdorfer models, so no more globe units for me.

Note that I don't really know how long the Oberdorfer models last because I usually just change it after 3 years.


Barry

svHyLyte 01-10-2013 07:06 PM

Re: Globe Blue Run Dry impellers
 
Quote:

Originally Posted by imiloa (Post 973480)
...These blue impellers are supposed to be able to run dry for up to 15 minutes. Do they work as well as/better than the rubber impellers? Do they really last longer? Thanks for any comments.

Ah... Not that I have observed.

Maine Sail 01-10-2013 07:23 PM

Re: Globe Blue Run Dry impellers
 
I pull my impeller every winter. This is at the end of a 7 month sailing season with about 120 hours of engine use. This impeller was NEVER run dry and never even had so much as even a slight restriction. She pumped a 5 gal bucket empty in under 45 seconds during winterizing with this impeller so flow was very, very good..

I will not comment other than to show the pics..

Before removal:
http://www.pbase.com/mainecruising/image/145236664.jpg

The various blades:
http://www.pbase.com/mainecruising/image/145237004.jpg
http://www.pbase.com/mainecruising/image/145237005.jpg
http://www.pbase.com/mainecruising/image/145237007.jpg
http://www.pbase.com/mainecruising/image/145237008.jpg

mgmhead 01-10-2013 08:07 PM

Re: Globe Blue Run Dry impellers
 
Not a fan.

PhilipStevens 01-11-2013 04:59 AM

Re: Globe Blue Run Dry impellers
 
I had a blue Globe in our Bukh at one time. It was put in at the beginning of one season, removed for the winter lay-up, and replaced at the start of the next season. It then failed to draw in water, and I replaced it with a basic rubber type impeller.

It had never been run dry, and I have never fitted one since.

Not impressed with performance.

I now have a VP2003 (different boat) with a Johnson pump and impeller - and no problems.

Stu Jackson 01-11-2013 11:24 AM

Re: Globe Blue Run Dry impellers
 
We've had reports of the rubber coming loose from the metal shaft. I don't even consider using them. We have an Oberdorfer 202M-15 on our M25.

arf145 01-11-2013 02:19 PM

Re: Globe Blue Run Dry impellers
 
I think we might have been misinterpreting the Globe impeller name--they sound more like Globe Run As If Dry Impellers :D

imiloa 01-11-2013 02:33 PM

Re: Globe Blue Run Dry impellers
 
Thanks, everyone for the informed replies to my post. Maine Sail, special thanks for the pics - worth at least 1,000 words each. (Your knowledge and experience continues to astound me.) :)


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