Ignition system wearing out too fast
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Driver School Candidate
Joined: Oct 2008
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From: beaverton, or
Ignition system wearing out too fast
I have a 93 sc300 and I replaced the cap/rotor/wires/plugs about 3 months ago. With the exception of wires, everything else is extremely corroded and worn out. The car is running very poorly. Everything on the engine is stock except for a cone air filter. I have synthetic fluids in everything as well. The cap and rotor are made by beck/arnley and the plugs are NGK iridium. What would cause my cap/rotor/plugs to wear out so fast? it looks like my stock ignition system is too powerful and wearing out components too quickly. I'm only driving about 500miles a month...Any ideas?
Thread Starter
Driver School Candidate
Joined: Oct 2008
Posts: 48
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From: beaverton, or
update: i checked the voltage of the alternator and it's making about 15v (higher then the 12-13v it's supposed to me making) I'm going to buy a new alternator and hope that fixes my voltage problem...
Does anyone know if an high output 130amp alternator from a newer (97+) works? Physically they look the same, any wiring issues? They look like they have the same plug too.
Does anyone know if an high output 130amp alternator from a newer (97+) works? Physically they look the same, any wiring issues? They look like they have the same plug too.
Instructor
Joined: Jan 2004
Posts: 853
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From: Ohio
The alternator should work from a newer model. Just make sure to check your grounds since it is the perfect time to refresh and/or add new leads to help the electrical system work better.
Another reason why your cap and rotor are wearing fast is due to the aluminum contacts. My first cap/rotor wore out fast too, they were beck + arnley. When i was in my local parts store a couple month ago, they had the option of spending $5 more and getting the "higher end" components. Upon comparison i noticed the contacts were copper on the higher end one and got those. The copper doesnt show any signs of wear and I have had them longer than the old set that corroded from the day I got them. Take a look into it and see if it works for you.
Another reason why your cap and rotor are wearing fast is due to the aluminum contacts. My first cap/rotor wore out fast too, they were beck + arnley. When i was in my local parts store a couple month ago, they had the option of spending $5 more and getting the "higher end" components. Upon comparison i noticed the contacts were copper on the higher end one and got those. The copper doesnt show any signs of wear and I have had them longer than the old set that corroded from the day I got them. Take a look into it and see if it works for you.
Thread Starter
Driver School Candidate
Joined: Oct 2008
Posts: 48
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From: beaverton, or
I just replaced the battery and battery terminals. The battery tested to have a bad cell, so the lights are brighter and the voltage is down to a reasonable level. The car is still idling really rough and sounds like a subaru. I'll replace the plugs next time I have a day off. I think I have a vacuum leak someplace too. That's probably messing with something too, not sure why it would kill my power though.
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