What is this and where did it come from

[pedalquickly]

Doing the timing belt water pump thing on an 02 that I bought a week ago.. I've done the job on others before but never seen this..

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[Greaser]

My guess is that looks like a small leak/corrosion of factory coolant substance (glycol based I think?)

 

[brillo_76]

Yes antifreeze leak. What does it look like around the water pump. Is that your source or is it higher?

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[RotaryDreamz]

Looks as though there was some type of leak coming from high, possibly the radiator hose and dribbled down, accumulated and hardened. Does look creepy though.

 

[pedalquickly]

I agree that is was the coolant but didn't realize it would accumulate like that. I did the complete waterpump/timing belt and related components after getting everything spic and span.

I found this cream puff with only 114k on it.