I was unable to locate OEM Ac Delco spark plugs for my 2002 Volvo Penta 3.0 (GSP-C) engine. I just bought the boat this year so figured while I was doing another maintenance I would just put in some new plugs. I bought some NGK (marine) and they went in quick. My old AC Delcos looked rough and even had some orange paint spray on them (same as my engine block) so I think they may be original! My questions:
1) Gap - I gapped the new ones at .045 per the volvo manual. It seems like the old ones were original and they were gapped at about .055. Should I be concerned? What are the signs of an incorrectly gapped plug?
2) The new plugs were slightly longer, but only longer on the top portion where the spark plug wire attaches. The lower section looked the same length so there shouldn't be any issue
I dabble with repairs/maintenance, but want to make sure my $8.50 maintenance is not going to cause problems! any feedback is appreciated
1) Gap - I gapped the new ones at .045 per the volvo manual. It seems like the old ones were original and they were gapped at about .055. Should I be concerned? What are the signs of an incorrectly gapped plug?
2) The new plugs were slightly longer, but only longer on the top portion where the spark plug wire attaches. The lower section looked the same length so there shouldn't be any issue
I dabble with repairs/maintenance, but want to make sure my $8.50 maintenance is not going to cause problems! any feedback is appreciated
