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Old 07-28-2003, 11:42 AM   #1
Scooby Newbie
Member#: 14362
Join Date: Jan 2002
Location: Toronto
2002 TS Wagon
Midnight Black Pearl

Exclamation Corrosion on my distributor terminals!

I removed the spark plug cables from the distributor to check things out. The little terminals on the block were all shiny but one, which was green/grey with corrosion. I didn't want to use sandpaper or steel wool without checking here first.

What should I do to remove the corrosion, or is it not that big of a deal? Just a little steel wool and then some conductive grease?


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Old 07-28-2003, 12:04 PM   #2
Scooby Specialist
Member#: 8273
Join Date: Jul 2001
Location: White Rock BC, Canada
2006 WRX Wagon


That's what I did with mine. Just took some really fine sandpaper Like 400 grit and a little lube to wet the paper and cleaned off the post. Then I put new wires on so this wouldn't happen again.

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Old 07-28-2003, 12:31 PM   #3
Trust no one
Member#: 11170
Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
02 WRX
15 WRX/05 GTO


FYI it's not a distributor, it's a coil pack. Clean it off as suggested and look at the wire that goes on that terminal. If it is corroded as well buy a new set or it will happen again. Keep an eye on it for a while, if it corrodes again the coil will need to be replaced.
Actually, if your car is an 02 this should all be covered under warranty so maybe just have your dealer look at it before you do anything.
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Old 07-28-2003, 03:26 PM   #4
Scooby Guru
Member#: 15543
Join Date: Feb 2002
Location: san francisco, ca
90BJ Legacy LS ABS
AWD 946 Rio Red Jpn built


Dielectric Grease
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Old 07-29-2003, 11:25 PM   #5
Scooby Newbie
Member#: 33067
Join Date: Feb 2003
Chapter/Region: MWSOC
Location: MI
1998 Legacy Wagon
Spruce Pearl


Yeah, dielectric grease is awesome. Be sure to use some after you clean up the terminal. Its also a good idea to put the stuff on whenever you change plug wires... some come pre-greased, but it doesn't hurt to be safe. Dielectric grease is also great for keeping battery terminals from getting nasty a few years down the road.
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Old 07-30-2003, 02:24 PM   #6
Scooby Guru
Member#: 7089
Join Date: May 2001
Chapter/Region: NWIC
Location: Western Wa
2016 STi


Originally posted by ciper
Dielectric Grease
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