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Interesting plug photo

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Tinster

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I'm getting ready to street Amos before the afternoon
rains hit. I thought I'd pull the No. 6 plug to see how
things are going. My No.6 is always the blackest of them
all.

A nice before and after plug photo. Banjo Ben pulled the
black plugs just before he went to work on my carbs. The
blackend plugs had about 75 miles on them. Ben installed
new plugs that David replaced two weeks later after the
Petronix failed and smoked Ben's new plugs back as coal.

David yanked the buggered up Petronic and installed points
and condenser, new plugs, new coil and fine tuned
everything.

Photo of m No 6 plug at 100+ miles driven on it, for
comparison.

I throw this photo out for comment. Amos starts instantly,
from outside the car on first turn of the key. Then goes
into a nice 1200-1300 rpm high idle which settles into
a warm idle of 900 to 1000 rpm. Runs nicely at highway 55
mph and pulls strong in second gear to 4,000 RPM. Does
not stall out going from 55 mph to dead stop at highway
exit ramp stop light.

So..........how's Amos looking to you professional guys?

plugs2.jpg
[/img]
 
Wish my TR8 plugs looked like that Here is #2 plug on the 8.

2.jpg


Not a good photo,but ..
 
You're just teasing us.

Now from what I'm reading the black plug on the left was not running in the engine currently? If so, we'll disregard it. The plug on the right, from what little evidence we can see looks perfecto. They will be clean like that with proper fuel mixture during the first couple thousand miles of running, until deposit residue starts building up, and charcoal starts darkening. Looks like I can see little hints of tannish brown on the end outer electrode(just the lip where the threads start). For more accurate diagnosis a plug reading gauge(basically a flashlight with a magnifying glass on it) that would be used to search the depths of the insulator and the electrode. So this is just teasing us, as we can't really see what's going on, other than to offer the opinion that no problem found.

Champion spark plugs used to offer a very good spark plug reading chart. It was hard copy and I always kept a copy in my tool box, gave it away about 10 years ago. Mebbe do a spark plug reading search, or Champion plug search and see what you can find.

Now one other thing. When you're removing the plugs are you waiting for the engine to cool down? Or are you using just a wee dab of antiseize on the threads of the plugs? I mean just a pinky finger cover wipe on the cleaned threads of the plug.
 
I think you need to fill your trunk with 6000 spare plugs, just in case. Then you could drive 1000 miles without worry. Do you worry about your boat engine this much? Or carry a dozen paddles, u-know, just in case the other 11 break?

Seriously though ...
Looks the the plug on the left is from low rpm short distance starts and stop, gas loading up a bit. The one on the right is cruisin' at speed. Normal behavior for an old carburated engine.
 
<div class="ubbcode-block"><div class="ubbcode-header">Quote:]Runs nicely at highway 55
mph and pulls strong in second gear to 4,000 RPM. [/QUOTE]

Dale,

Does your tach only go up to 4,000RPM?

Let's see you wind that honey up!! Heck, I ran mine up to over 5,200 RPM on the dyno on a 90+ degree day (in a closed shop) and it loved it. And mine needed tuning at that time (which I didn't know until the dyno runs!!).

Let's give Amos some room to breath a little.

Actually, it looks pretty good. Don't start getting shipwrights disease on this one.
 
Dale,

Since you want comment on the plug condition...

Good job David and Ben for getting the dark side Crypty beast out of the engine! Hello Amos!

/bcforum/images/%%GRAEMLIN_URL%%/thumbsup.gif
 
Pedro snuck into the garage right after I left and buggered the Petronics.... grrrr. Amos was liking the street time. we had the carbs dialed right in, running fine, then the spark went fffffffffffT! fouled those plugs right out! Dave chased the dizzy demon away, and installed new bang bolts (plugs). and now look! good spark + good fuel mix = good lookin plugs!
 
/bcforum/images/%%GRAEMLIN_URL%%/winner1.gif

Ben: Thanks for your preliminary work.
Carbs are not my thing, but they sure seem to be yours.
Now all we have to do is get a weekend together and enjoy a little vino. Any vintage is good with me.
Dave /bcforum/images/%%GRAEMLIN_URL%%/thirsty.gif

P.S. I'll leave the dogs home, as they are not house trained. /bcforum/images/%%GRAEMLIN_URL%%/thumbsup.gif
 
just drive the d**ned thing and enjoy it... Don't look for trouble. If it's out there it will find you soon enough. Just drive it like you stole it. Amos might just enjoy the adventure.
 
Yup-yup! Don't "over-tech". Amos now requires daily leg stretching exercises. When something starts to go, fix it. Now you're into the driving stage of LBC ownership again, along with having gained a rather intimate knowledge of the car you drive. Most Excellent!

OH, and IMO Dave did you an enormous favor with putting the iggy straight by retrofitting the points assembly. That "box-o-tricks" electro-whizz-bang thingie is only good as a wheel chock. You can fit a whole boxfull of points, condensors and a 12V test light in the glove box for the money they cost. Only other thing you'd need is a matchbook cover! /bcforum/images/%%GRAEMLIN_URL%%/wink.gif
 
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