Plug color question

[TRMark]

Doing some maintenance. What do you think of color etc. TR4, 87mm, Champion RL82YC, compression upped per street tune instructions in Comp Prep Manual, stock needles, Mallory Dual point.

Same plug close up.

 

[poolboy]

How many miles on the plugs ?

 

[Marvin Gruber]

Plug color pretty good. Looks to burning nicely. From the photo, gap looks wide but if its running good, leave as is.

Marv

 

[CJD]

Let me guess. Car used mostly short distances in city traffic, then occasional highway trips? The deposits could be oil or gas, but I am betting gas, as they are dry. I would say good mixture, but choke used often, and maybe a bit longer than needed.

John

And oh, almost forgot...a plug one heat range hotter would likely fit your use better. It'll warm up faster and reduce deposits on short trips.

How'd I do?

 

[sd80mac7204]

 

[TRMark]

Let me guess. Car used mostly short distances in city traffic, then occasional highway trips? The deposits could be oil or gas, but I am betting gas, as they are dry. I would say good mixture, but choke used often, and maybe a bit longer than needed.

John

And oh, almost forgot...a plug one heat range hotter would likely fit your use better. It'll warm up faster and reduce deposits on short trips.

How'd I do?

You got it. The car is mostly around town. I will take it to my cabin about 75mi away several times during the summer along with a trip through Yellowstone Park. The plug is from no.1, I choke the front carb only because I couldn't get the jets to return to seat properly. Didn't want to mess with the jet assembly as it doesn't leak. For some reason I didn't record when I switched out the plugs.

Thanks for you help, lotsa smart people around here.

I am using a Lucas Sports Coil, so the plugs are gapped a bit wider