MM1

I have used them in customers boats and haven't seen any temp or water pressure difference big enough to worry about. As for the run dry part I haven't tryed to fry one on purpose yet but I will say they are much better than the stock merc ones if you happen to pick up a bunch of sand.

handfulz28

Can you run the Globes in a Jabsco pump?

Chris Sunkin

I smoked a stock one a few years ago winterizing. I started the engine and began dumping antifreeze into the sea strainer. It took a minute to realize the pickup valve was still open and the juice was spilling out onto the ground. By the time I shut it down, the impeller was toast.

GLH

You mean to have us believe something runs dry on THAT boat... WTF

CigDaze

He even has Claymates shirts.

Chris Sunkin

The boy's got game.

Lofty

I forget that some boats still run without sea strainers. They make a huge difference to impeller life if you spend any time in rough water and run hard. A decent sized sea strainer should provide some reservoir for limited hang time.

CPPerformance

Here is a really good thread with some useful information:

http://www.offshoreonly.com/forums/s...d.php?t=113546

Steet

I bought my blue impellers from Michael and have them in my 625 Ilmors and was use to losing about 4 or 5 impellers per year usually from shallow water problems. I have not lost one since changing over to the blue impellers. I am a believer in them. No loss of water pressure in mine either. If memory serves me correctly, the mercury water pump can supply enough water for 3 engines, so I doubt the sealing differences would be noticeable. I do know for a fact that I have seen a boat with the hoses with a shutoff valve to move water to the engine whose pump failed which I thought was a good idea. If a pump fails, just open the valve and the pump would supply water to the other engine until the repair could be made to the other pump. This was on a fountain on Lake Norman a couple of years ago.

NASCAT

Many of you have asked about the Globe Run Dry Impeller Warranty so here it is.

Available in the OSO Parts Under $100 Section