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1926 Franklin spark plugs


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Spark plugs ?    1926 franklin model 11A   engine E103545  can anyone tell me the type of spark plug that should be in this vehicle.  It now has autolite 3095   with a reducer  going from the 1/2 pipe thread of the spark plug to 3/4 pipe screwed into the head. Problem being the od of that reducer barely screws into the head maybe on 3 threads. so something is obviously wrong. What is the original spark plug and what is its thread dimensions.

Also a source for technical information    what should compression be?

Thank you

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Hi from Athens, Greece, S. Europe.

Trying hard Europe wide to source  ten (10) W18 (518) Spark Plugs for my Franklin 11-B (1927).

I would appreciate any useful guidance.

Yours,

K.L.Zekakos, Dipl. Mechanical. Engineer

Copy of Franklin total view.jpg

CHAMPION SPARK PLUG W18 _NEW 518.jpg

FRANKLIN FIVA CARD CLEAR.jpg

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Hello, Putize. 

 

Have you tried searching online for any Champion Spark plug suppliers in Europe ?  If you go to the Champion website and click near the upper left corner, it lists countries outside the USA that they deal with.  https://www.championautoparts.com/Products/Spark-Plugs.html

 

I don't see Greece listed, but it might be easier to order from a country closer to you than from here in the USA ? 

 

We can get the Champion 518 (old number W18) from many sources here is the USA such as our local autoparts stores. Or we can order them online from , www.amazon.com and www.rockauto.com .

The online suppliers may ship internationally ?

 

Paul

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