If she had gotten off on time, I'd have already been outside. As she just left work, it'll be a minimum of 45 minutes. All good though, sitting in the recliner watching toy story with the kids in the meantime.
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Sounds like you are practicing good life/work/'burban balance. :0)If she had gotten off on time, I'd have already been outside. As she just left work, it'll be a minimum of 45 minutes. All good though, sitting in the recliner watching toy story with the kids in the meantime.
when your kids get to the
right age, you can have them help you
Left to rightTop to bottom across the handle are 1-7.
Thanks for the feedback and confirmation of my thoughts. #8 was also a major PIA to get to with hoses in the way for rear heat. Wouldn't be surprised if it was skipped last plug change.Apologies for the delay...going from read-only lurking to a contributor I'm
still learning how to navigate back to a discussion already in progress. Got it.
Before we discuss your plugs, let's take a look at what I don't see:
1st example: 1 very bad oiling cylinder (#5), + 1 darker A/F ratio(#8), + 6 more or less the same. It will take more than a tuneup to sort this out. (!)
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On multi-cylinder engines, Sesame Street taught me all I needed to know about troubleshooting: "One of these things is not like the others!"
2nd example: 3 good A/F ratio, 3 fouled from too rich mixture:
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From a Jaguar website, owner asking for help. Once you open the bonnet & discover that there is not 1 but 2 carbs feeding the engine, the recovery plan snaps into
sharp focus.
****
OK, using those 2 photos to give us some context, I'd say that your plugs
are in really good agreement overall. Given the coloration (and lack of oily
deposits on the threads) I'd say that you have a solid V8 foundation to
work with on your 'burban!
Fine points:
* #8 plug is slightly darker than the #2 plug. Given all the uncontrolled
variables we discussed previously, I wouldn't chase this just yet, and
instead wait until we read the plugs *you* installed after some miles
have accumulated & revisit?
* If you look at plugs #1, #3, #5, & #7, you can see the shadow caused
by the SBC plugs installed at a 90-degree angle to the cylinder they
light off. In other words, only half the porcelain sees the color
of combustion. The only reason I point this out that if you take a
close look at these & visual how the center electrodes are 'clocked'
in their respective bores...and then you go off & read about how
some racers** go to great lengths to 'index' all their spark plugs to
face the same way, now this should make more sense. (Warning: These are
fanatics chasing every last erg, but if you read around enough you
*will* see spark plug indexing discussed.
* Given your oil analysis report, I was looking closely for a
too clean (steam cleaned) plug, but nothing stood out. For
now an oil change to go along with your fresh set of plugs
and again we'll keep an eye out for this down the road.
How about that -- some good news about the 'burban
you're debugging on a Friday evening. Compared to
the 2 other engines we compared your engine's plugs
to, you should celebrate your good fortune! :0)
Good luck prepping for your upcoming trip --
****
**And also Honda, in all places the 2-seater,
3-cylinder, 70mpg Insight from the early '00s.
In the shop manual they specifically wanted
the mechanic to maintain proper spark plug
indexing for max efficiency, and in order to do
this they listed spark plug numbers with suffixes
A, B, C, & D, each providing a different center
electrode clocking. (!) Yup, the very first time
gas went up to $4/gallon, I bought a well-used
Insight, put a bag on my head w/cutouts for my
eyes, and cut my fuel costs back down to
<$2/gallon vis-a-vis feeding the 30mpg base Civic
hatchback I was driving immediately prior.
(My twin daughters were in college & I had a
long commute...you gotta do what you gotta do. :0)
Thanks for the feedback and confirmation of my thoughts. #8 was also a major PIA to get to with hoses in the way for rear heat. Wouldn't be surprised if it was skipped last plug change.
I'll admit I didn't think of the plug orientation affecting the coloring pattern until my second look at them.your photo just made it really easy to see
No worries! Despite my excitement with my new (to me) C2500, work progressedOther projects claim my time and effort for the coming weeks unfortunately.