ORIGINAL: Gray Beard
ORIGINAL: The Ghost
are you saying the no engine ever comes off the end of the assembly line with a spot of rust in the bearing?
NO, Just that rust is not a manufacturing defect, Having been a marine engineer for 25 odd years I have seen some pritty rusted stuff. 30 odd years of modelling I have never seen rusty bearings in a new engine.
Cheers
One of the guys at the field came out with a brand new Magnum two stroke on his plane, you couldn't turn it over by hand at all. We went to the hobby shop with it and the store manager just handed him a new one, same thing. We opened them both up and both engines bearings were rusted solid??
That was the first time I have ever seen rusted bearings in an engine too. There is no answer for the problem but I question if there was a moisture problem in the shipping or storage?? Maybe in assembling?? The third engine we pulled was just fine and they all came into the store at the same time for the sale??
First time for everything but I had never seen anything like that.
+1 there Gray Beard.
Really seems like a manufacturing defect to me. Rust itself may not be a manufacturing defect BUT rust can certainly be the result of a manufacturing defect. In this case my opinion is that the bearings werent properly lubed/protected prior to engine assembly.
Imagine a car manufacturer forgeting to paint a car. The car rust's over and then the maker wont warranty the car because rust isnt a defect.
My opinion is based on that I live in an area that gets it fair share of heat and humidity. Ive used Morgan fuel for about 14 yrs now and No ARO. Never have had a rusty bearing issue with any brand of engine that gets fair use.
Cheers.