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What is this part?

2K views 10 replies 8 participants last post by  D.T. 
#1 ·
What are the parts pictured below and how do I get the rust off of them? It's the cylinder shape with the silver color metal on each end.

Auto part Pipe Automotive exhaust Fuel line Engine







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#3 ·
Those are your ignition coils. You basically leave them alone. I've never heard of a coil failure due to rust on the iron plates. They just strengthen the magnetic field.
 
#7 ·
I think you'll find just about everybody's looks like that.

 
#9 ·
It's rusty because these coils are wound around a laminated iron core and the manufacturer did not bother to paint or otherwise protect it from rusting. It does not affect it's ability to generate a spark, but if the rust offends you, you could coat the rusty core with some sort of paint. Just be sure that that the mounting / contact area is left bare as I believe it is a frame grounding point for the coil.
 
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