tasteslikechicken

I had a low RPM hesitation (& hard start) issue and, based on forum posts, identified the ignition coils as a the likely culprit. So I picked up a set of replacements from Advance Auto and went to work replacing them. Needless to say, since the posts/bolts were heavily corroded, I proceeded to break off three of the four screw posts while removing the old coils. So now I am contemplating the repair options. (The good news is that the car starts & runs great with the new coils.)

First, how safe is it to drive in the short term with the ignition coils simply held in by the molex & spark plug connections? It doesn't appear that the ignition coils can move around much. But maybe I'm missing something.

What options are there for fixing/replacing the screw posts?

Is there a replacement part available from Mazda or someone else?
Is there some external bracket/clamp that can secure the coils?
Do I just epoxy the coils down and replace the whole thing when these new coils go bad?

I really don't have a clue. So I turn the wisdom of the forum for any recommendations. TIA.

TeamRX8

iTrader: (25)

You can drill it out and get a long fully threaded bolt and a pair of nuts

Put bolt through drilled hole in plate, put on nut tightly to hold screw in place (and some locktite if you have any), install coil, and then a nut to hold it down

Think I gave at least one coil bracket laying around if you'd rather replace it or Mazda sells it too

Harlan

iTrader: (3)

The coils can hang there by the connector just fine, it is safe to drive that way. Do not epoxy them down, it will be a mess and then you will have to fix it the right way.

tasteslikechicken

Do you need to remove the bracket to drill out the posts? I assume so, since there isn't the greatest access while the bracket is mounted on the engine.

It's rather sad that Mazda made the mounting posts out of plasticized semi-metal.

tasteslikechicken

Thank you, this is comforting to know.

Mazurfer

N3H118105.....................just buy a new bracket for about $32.00, it's the cheapest I found in my two minutes of google searching.


2005 MAZDA RX-8 Parts - Online Mazda Parts

or

N3H118105 - Genuine Mazda


You didn't say your year of car, but I believe they are all the same. Just use the links I gave you and back it out to put your year in to be sure.

tasteslikechicken

Thank you very much!

nycgps

iTrader: (1)

if u gonna replace it with a new bracket AND you are lucky enough to NOT have any extra broken bolt during removal ...

when you reinstall da new one with NEW BOLTS, USE Nickel-based ANTI-SEIZE on the threads ... and on the bolt which locks the coil down, use Dielectric grease and cover the nut and EVERYTHING so it NEVER rusts

Mazurfer

^....true on that for sure. I forgot to mention that.