| [GMCnet] might as well change spark plugs [message #345649] |
Tue, 23 July 2019 17:59  |
Ek_Lektro
Messages: 167
Registered: March 2011
Karma:
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Senior Member |
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i’ve got some Bosch Platinums that look kinda burnt, last changed about 8 yrs (20,000) miles ago.
The burn might be because the distributor was gummed up, running too advanced (and for who knows how long).
((Sure, maybe these plugs could clean up OK, but a few of them look a bit borderline, with the tips looking a little pitted.
Anyway, I’m changing the cap/rotor and wires today, so why skimp on the plugs?))
The GMCMI parts digest lists a bunch of compatible plugs with .080 gap (for the ’76 455 engine).
So... should i buy a set of these and gap them at .045? .060?
or should i buy different plugs that are already gapped at .045?
Not sure if it makes a big difference, so any info appreciated, thanks!
Greg / SolarSonic / Los Angeles
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