Strange spark plug not Model A

[Brian SATX]

Anyone know what this is for? Was it specific to a certain make of car? It is a little smaller that an A plug. Appears to be factory made, Champion on porcelain.

[emf]

That's a primer plug. It allowed one to put a small amount of fuel into the chamber to start the car on a cold morning. It looks to be a plug with pipe thread which was common on early cars. Model T, Reo, Olds, etc. could have used them.

Frank

[jimalabam]

Right on emk...

[BILL WILLIAMSON]

Originally Posted by emf

That's a primer plug. It allowed one to put a small amount of fuel into the chamber to start the car on a cold morning. It looks to be a plug with pipe thread which was common on early cars. Model T, Reo, Olds, etc. could have used them.

Frank

Frank,
With those kid of plugs, you sure COULDN'T make a QUICK GETAWAY
Bill Slow

[SeaSlugs]

yup - i watched a guy start a old car with those once (wasnt Ford or chevy or dodge).

[emf]

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Originally Posted by BILL WILLIAMSON

Frank,
With those kid of plugs, you sure COULDN'T make a QUICK GETAWAY
Bill Slow

On my EMF, I can't make a quick getaway even without them. The length of the intake manifold from carburetor to block is about 20 inches. I have to crank 4 times with the choke fully closed just to fill the intake tube. Then she pops right off...Maybe..

Frank

[cpf240]

Thanks for this thread, I've never seen anything like that! Learning something new every day!