What are the symptoms of a spun bearing?
 

I found some silver snot in my first oil change and it wasn't iron/steel material. This was on a fresh 350 with 2-3 hours on the first oil change.
Ken

Re: What are the symptoms of a spun bearing?
 

what do you mean by fresh, new, rebuilt ?????

You should not see anything noticeable

Re: What are the symptoms of a spun bearing?
 

remanufactured GM marine long block. Would the silver snot be consistent with bearing material?

Re: What are the symptoms of a spun bearing?
 

could be rod and main bearings are made from several materials including zinc, brass, bronze, ect

Re: What are the symptoms of a spun bearing?
 

u may have wiped a cam lobe, does it run smoothly? do you hear any knocking?

Re: What are the symptoms of a spun bearing?
 

When you say re manufactured GM engine, are you saying the engine was rebuilt by GM? Or was this a straight out new marine engine. When I say straight out new I mean the block has never been rebuilt.

Re: What are the symptoms of a spun bearing?
 

some of the "cam lube" has moly in it and can make the oil look like metal flake

Re: What are the symptoms of a spun bearing?
 

Re: What are the symptoms of a spun bearing? A drop in oil pressure, especially when thoroughly warmed up and at idle speeds after a hard run. --- Jer

Re: What are the symptoms of a spun bearing?
 

if you spun a bearing youd know it trust me KNOCK KNOCK KNOCK KNOCK

AND YES DROP IN OIL PRESS

Re: What are the symptoms of a spun bearing?
 

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"if you spun a bearing youd know it trust me KNOCK KNOCK KNOCK KNOCK" as Goodt states.
Yes, IF it is a rod bearing. But if it is a main bearing, you can still have "the silver/bronze death" and not hear a thing. --- Jer