If you turn to the Dec 1996 issue of GMC Motorhome News, Wes C. recommends
the .060 in. gap. I believe if one gets AC R 46 SZ plugs they will come
gaped at this . The "Z" refers to the narrower gap. If one gets the original
one with the "X" it will have the wider gap ,and one should close it down to
.o60 in.
Claude
77 Royale
the .060 in. gap. I believe if one gets AC R 46 SZ plugs they will come
gaped at this . The "Z" refers to the narrower gap. If one gets the original
one with the "X" it will have the wider gap ,and one should close it down to
.o60 in.
Claude
77 Royale
