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Thread: Water Pump Impeller Removal
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01-02-2020, 06:50 PM #31Member
- Join Date
- May 2018
- Location
- Little Rock, AR
- Posts
- 35
Using a petroleum lubricant, especially one with solvent properties (WD40) on nitrile or rubber gaskets scares me as well. You are probably OK but a good alternative is a slightly diluted dish soap in a spray bottle to lubricate old impeller to help with extraction. I endorse the paint can openers but take several with you as mine bent.
As far as frequency of changing, I spend the extra and put in Globe run dry impellers which I change every 3 seasons (about 150 hours) and have never had a failure since switching to Globe in previous inboards.'14 Mojo 2.5
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01-02-2020, 09:52 PM #32
Read about those online. Some of the Offshore Boat crowd felt they did not push the same amount of water and ran the engine(s) run 10-15 degrees warmer. Others thought they worked as good with the pressure and better for long-run duration b/c they are a silicone impeller (more temperature resistant and have greater resistance to sand and dirt abrasion.) vs a black rubber impeller.
I guess for the people changing-out every season (say 100 hours), it might not matter b/c I would assume there are a low number of failures with the rubber impeller or silicone ones.
Did you notice an temp changes on your boat?
Is this the part number you are running?
https://www.bakesonline.com/johnson-...rvice-kit.html
https://www.bakesonline.com/globe-10...-f6b-pump.html2018 Supra SL400