White residue on prop shaft, thrust washer, inside prop etc.

[ryno1234]

I took my prop off because I noticed vibration after a big wave at a heavy throttle the last time I was on the water.

I noticed that there was a lot of white residue on areas of the prop shaft, etc. What is this?

IMG 8647 — Postimages

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[kd4pbs]

The wrong kind of grease?

 

[ryno1234]

It's kinda chaulky. On the inside of the prop hub, that same white residue is more gummy.

 

[Texasmark]

Lubriplate brand grease (in most auto stores) is commonly used in marine environments as it stays put and stays greasy in marine environments.....its white.

 

[StewartL]

The white residue is likely dried salt or oxidation from water exposure, especially if you're in saltwater. It could also be leftover grease or anti-corrosion coating breaking down. Clean it off and check for corrosion or damage.

 

[cyclops222]

In freshwater I had too much oil in the gas / oil mixture. Looked like lumps of cream cheese on lower unit.
Motor has separate exhaust tube and prop.