The product in question is a marine Volvo-Penta DP-S outdrive. This is a dual prop outdrive that has twin coaxial counter-rotating propellers. The forward propeller is notorious for seizing to the propeller shaft when the salt water contaminates the grease in between the propeller hub and the propshaft's splines, crystallizing the grease. It doesn't help that VP uses an aluminum hub and a stainless shaft. Those two metals really don't get along well in salt water. The only solution at that point is to destroy the propeller hub and chisel the remnants of the hub off of the propshaft. Using a puller will only break the puller if the prop is locked to the shaft.
This is an issue with all of the Volvo-Penta dual-prop drives.
I was wondering if there is a particularly resilient grease that will resist salt water contamination to prevent this from happening. The only solution right now is to make sure the props are frequently removed and re-greased.
It's important that the props remain servicable, because the drain for the gearcase is behind the props. If you can't get them off, you can't drain or fill the gear oil.
TIA.
This is an issue with all of the Volvo-Penta dual-prop drives.
I was wondering if there is a particularly resilient grease that will resist salt water contamination to prevent this from happening. The only solution right now is to make sure the props are frequently removed and re-greased.
It's important that the props remain servicable, because the drain for the gearcase is behind the props. If you can't get them off, you can't drain or fill the gear oil.
TIA.