I got 6 x IK20TT spark plugs from RA, came in two 4 pack boxes (with one missing 2 inner boxes). I believe the specs says they are pre gapped to 1mm or 0.04inch.
With a coin gap gauge, only 1 is reaching 0.04, they are in the range
0.036 x2
0.037 x1
0.038 x2
0.039 x1
The 1MZFE engine specifies 0.044 but that's for the old long life iridium without the needle platinum ground.
I would be fine with 0.04 gap, but wondering are the smaller gap ones ok to be installed?
With a coin gap gauge, only 1 is reaching 0.04, they are in the range
0.036 x2
0.037 x1
0.038 x2
0.039 x1
The 1MZFE engine specifies 0.044 but that's for the old long life iridium without the needle platinum ground.
I would be fine with 0.04 gap, but wondering are the smaller gap ones ok to be installed?