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Anyone want to read a set of plugs?

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Stewart

Stewart

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Trying to get a second or thrid opinion on the mixture.

IMG_1639.JPG

IMG_1640.JPG
 
They look just like mine and my 78 is running fine. I also have three manuals, one for the B, one for the Ford and one for the Buick. Those pix also look like your plugs.

Guinn /ubbthreads/images/graemlins/yesnod.gif
 
It appears to me that these are two different sets of plugs with the top set being just a bit too hot for the type of driving they suggest. However, the mixture is about right maybe just a tad lean.--Fwiw---Keoke
 
I agree with Keoke. A fuzz lean for an MGB. On the agenda for today is a plug cut on a fresh TR250 engine with 2 inch SU's. If they look like those in the pic I will be happy.

Alan T
 
Your's look OK to me...too lean for racing, but fine for street.
Remember that plugs are ususually read after a "plug cut", where you run the car at high speed, put it in neutral, shut it off and coast to a halt. Then pull the plugs right there and read them. To get good readings, you should never allow the car to idle for more than a few secondes before removing them.
Here's a good page on plug reading.

https://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html
 
Looking good, would make me happy.
 
If I had those plugs in one of my drivers, I wouldn't worry about them.
 
I have to agree with everyone else. They all look good, but possibly just a hair on the lean side of things.
 
Today's fuels usually result in a darker plug than desired. I'd say those look perfect for 30 years ago but a touch lean for today.
 
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