Coil pack screw

clifford06 · Post by **clifford06** » 08 May 2016, 20:01

Greetings . What size are the screws that hold coil packs in place ?

Post by **MadeInJapan** » 08 May 2016, 21:02

Not sure of the actual screw but all of mine have been 10mm bolts.

Post by **j-dawg** » 08 May 2016, 22:06

A 10mm head should correspond to an M6 screw.

Post by **benpineapple** » 09 May 2016, 06:24

j-dawg is right, 10mm M6 screw, aprox 1.25" long will do.

Post by **abscate** » 09 May 2016, 08:07

Important they are clean and tight as they ground the high voltage part of the coil.

Post by **cn90** » 09 May 2016, 16:38

Are you sure?
I thought the 10-mm bolt is only for anchoring the coil down.

The grounding process is via the threads in the spark plug itself.

Post by **abscate** » 10 May 2016, 03:59

The plug grounds through the thread, correct. The ground side of the coil that. Generates the spark goes through the attach screw..if you flip the coil over you will see the attach point is copper to make good contact with the engine block