oe spark plug gap?

[thundercat2]

just changed out plugs and wires at 60000.bought car with 38000 on it and dealer said complete tune-up had been done. actually told the truth as found all paperwork in passenger drawer.this was done at dealer but i could not find gap noted.
anyway, now that i am done i was curious and checked.found plugs were 58,62,65,and 78.they were a little greyish-brownish but did not look really bad in my opinion. was just wondering where gap should have been set by dealer?
new ones set at 40 and with7.5mm wires so now maybe milage will get back to somewhat normal.now waiting for ram-air hood and cold-air intake and will reset(un-hook battery) when i install those.

ron

[CREWZIN]

I'm not sure I understand what your saying but yes, the gap should be around .040in. Originally Chrysler had us gaping them at around .050 but changed their minds with a TSB. Greyish/brownish is good.

[thundercat2]

the old plugs did not seem to be gapped at all.gaps ranged from 58 to 78.never seen that much variance on an old set of plugs.just did not seem right,kinda like they were just thrown in and never gapped.

ron

[Hooligan]

Originally Posted by thundercat2

the old plugs did not seem to be gapped at all.gaps ranged from 58 to 78.never seen that much variance on an old set of plugs.just did not seem right,kinda like they were just thrown in and never gapped.

ron

Many people never check the gap, their thought "Can't be bothered, must be right, as thats the way the factory built them."