Quote:
Originally Posted by TopJimmy
I always check my own gaps regardless of vendor. OEM plugs are usually properly gapped at 0.028" but we've seen 0.025-0.032" out of the box.
For any other plug (NGK or F8S) a check and gapping is mandatory. Those plugs usually have wide gaps because it's easier to "gap down" with feeler gauges and a ground strap pusher (screw in the plug, insert feeler, tighten screw to push ground strap to 0.021-0.023"). Trying to open up a gap usually scratches the iridium on the ground plate, and few of us have a proper gap opener tool (like a tiny tree, branches at different thickness to grab a strap in the middle).
Plug change is easy. Remember to tighten to 25Nm for proper washer crush.
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TopJimmy suggestion for F8S gaps? currently just tuned stage 2 BMS OTS