The great spark plug question

[snoranger]

FIFY

Good one!

 

[PetroleumJunkie412]

FIFY

What is?

 

[RonD]

...so the iridium ones I'm running are probably wrong, eh?

Not "wrong" but if they have a single coating only on the tip or center, then a waste of money

Coating is there to reduce metal loss, usually on the tip, from spark erosion
Waste spark fires half the spark plugs in the REVERSE direction, tip to center, so no protection if only the tips have the coating

 

[85_Ranger4x4]

What is?

Cox model engine - Wikipedia

en.wikipedia.org

 

[PetroleumJunkie412]

Cox model engine - Wikipedia

en.wikipedia.org

Well. Looks like I'm delivering doughnuts to Iowa next.

 

[PetroleumJunkie412]

Not "wrong" but if they have a single coating only on the tip or center, then a waste of money

Coating is there to reduce metal loss, usually on the tip, from spark erosion
Waste spark fires half the spark plugs in the REVERSE direction, tip to center, so no protection if only the tips have the coating

I seriously want to hook a USB port up to your brain and download all the automotive files.

 

[85_Ranger4x4]

Well. Looks like I'm delivering doughnuts to Iowa next.

Please bring the 2.9, smoke might help with mosquitoes.

 

[PetroleumJunkie412]

Please bring the 2.9, smoke might help with mosquitoes.

....yep. Officially converting "the list" to "the list of people receiving 2.9 doughnuts in their lawns." Sprinkles not included. That would be casual.

 

[85_Ranger4x4]

....yep. Officially converting "the list" to "the list of people receiving 2.9 doughnuts in their lawns." Sprinkles not included. That would be casual.

I haven't mowed for awhile and I lost a couple harrow sections out there... good luck.

 

[PetroleumJunkie412]

I haven't mowed for awhile and I lost a couple harrow sections out there... good luck.

With as many spare engines as I keep around, I have enough oil pans.




Wait.




Aw crap. I just made the list.

 

[85_Ranger4x4]

With as many spare engines as I keep around, I have enough oil pans.




Wait.




Aw crap. I just made the list.

No no, harrows are like farmer stop strips. Like 6" sharp steel spikes on a frame... flip upside down and wait.

And yeah, if someone does donuts in my yard now there is a pretty short list of suspects that need not so random shapes plowed in their yard...

 

[8thTon]

Cox model engine - Wikipedia

en.wikipedia.org

I still remember the pain of the prop kicking back into my fingers. It might have been worse than stepping on Legos in bare feet.

 

[8thTon]

Not "wrong" but if they have a single coating only on the tip or center, then a waste of money

Coating is there to reduce metal loss, usually on the tip, from spark erosion
Waste spark fires half the spark plugs in the REVERSE direction, tip to center, so no protection if only the tips have the coating

I'm liking the Iridium Autolite XP's in mine. Same basic plug but with "Iridium-Enhanced Center Electrode and V-Trimmed Platinum Side Wire"

Iridium on the center electrode is perfect for wasted spark systems - the stuff really is damned tough and it's the center electrode that takes the abuse on the backwards-firing plugs.