How do these plugs look???

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Budgetmoparman

Budgetmoparman

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These are the spark plugs out of my 340 after about 300 miles of driving. How do they look to you guys? It runs great. I pulled the plugs so I could turn it over to adjust the valves and figured I would see what you guys think. Does it look lean, rich, right on? I'm not good at reading plugs. Thanks for any replies.

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They'll all look lean because of ethanol. Nearly impossible to read plugs with ethanol in the mix. Best to use AF meter.
 
Budgetmoparman said:
These are the spark plugs out of my 340 after about 300 miles of driving. How do they look to you guys? It runs great. I pulled the plugs so I could turn it over to adjust the valves and figured I would see what you guys think. Does it look lean, rich, right on? I'm not good at reading plugs. Thanks for any replies.

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From why I see...timing is about as good as it can get. Idle and cruise are about spot on. Can't tell about WOT because I need to see the bottom of the nose where it meets the shell. There should be a carbon ring down there about .100-.125 wide. If it is wider than that it is lean at WOT.

As far as heat range...if it's an NGK plug it's about right. If it's a Champion it's a range, maybe two too hot. If it's an Autolite...I'm guessing...but I'd say PFC to maybe one range warm.

If you want to cut the shell off and post some other pictures I can say more about WOT.

After that, you need a magnifying glass and patience to see if the timing curve is close and stuff like that.

Overall, I'd say your tune up is pretty damn good.
 
yellow rose said:
From why I see...timing is about as good as it can get. Idle and cruise are about spot on. Can't tell about WOT because I need to see the bottom of the nose where it meets the shell. There should be a carbon ring down there about .100-.125 wide. If it is wider than that it is lean at WOT.

As far as heat range...if it's an NGK plug it's about right. If it's a Champion it's a range, maybe two too hot. If it's an Autolite...I'm guessing...but I'd say PFC to maybe one range warm.

If you want to cut the shell off and post some other pictures I can say more about WOT.

After that, you need a magnifying glass and patience to see if the timing curve is close and stuff like that.

Overall, I'd say your tune up is pretty damn good.
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They are Autolite 65. Should I richen it up a hair or call it good? It is just a cruiser. I only have around 300 miles on the motor. The carb is a 750 double pumper.
 
dark black soot around ring and first couple threads tells me it's rich. like to see a little lighter color.
 
yellow rose said:
I damn sure ain't moving in the with in laws who live across the property.
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I didn't know you had a motorhome to pull the car trailer? Meaning you can come to the Mopar Nationals and spend the night in your motorhome when you go race?
 
j par said:
I didn't know you had a motorhome to pull the car trailer? Meaning you can come to the Mopar Nationals and spend the night in your motorhome when you go race?
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It's too small to pull the car. I bought it when I was riding dirt bikes. No way would I try pulling a car with it.
 
j par said:
Well it's obviously a Mopar isn't it a 360 or 413? Do we need to hop that thing up or what?!
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Of course it's a Dodge. It's more like a van with a camper on it. That's what size MH it is. At the time I was riding by myself so it's all I needed. Plus we had one dog and a kid so it was the perfect size. Then we ended up with 4 (FOUR) dogs and they made the MH a tight fit.

Damn dogs
 
yellow rose said:
Of course it's a Dodge. It's more like a van with a camper on it. That's what size MH it is. At the time I was riding by myself so it's all I needed. Plus we had one dog and a kid so it was the perfect size. Then we ended up with 4 (FOUR) dogs and they made the MH a tight fit.

Damn dogs
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More cozy that way...
 
yellow rose said:
Of course it's a Dodge. It's more like a van with a camper on it. That's what size MH it is. At the time I was riding by myself so it's all I needed. Plus we had one dog and a kid so it was the perfect size. Then we ended up with 4 (FOUR) dogs and they made the MH a tight fit.

Damn dogs
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Sounds like plenty of room for a 440?
 
yellow rose said:
How wide is the fuel ring? Cut the shell off and post some pictures.
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How should I go about cutting the shell off? Can I use a cutoff wheel or will that discolor it and make it difficult to read? I have never cut the shell off a spark plug before.
 
Budgetmoparman said:
How should I go about cutting the shell off? Can I use a cutoff wheel or will that discolor it and make it difficult to read? I have never cut the shell off a spark plug before.
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I'm lazy. I use my lathe. But any way you can get it off there is Ok. Hacksaw, cut off wheel, a file if you are into self abuse...whatever you have to get it off.
 
yellow rose said:
I'm lazy. I use my lathe. But any way you can get it off there is Ok. Hacksaw, cut off wheel, a file if you are into self abuse...whatever you have to get it off.
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I think I will use a cutoff wheel. I don't like the file idea, I'm not that ambitious. I will cut one apart tomorrow morning and post pictures.
 
Budgetmoparman said:
I think I will use a cutoff wheel. I don't like the file idea, I'm not that ambitious. I will cut one apart tomorrow morning and post pictures.
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I'm not ambitious either. That's why I have the lathe. I'm lazy from way back when. Work smart not hard. Write checks, stay clean.
 
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