SouthIL400
Member
- Location
- Union County
My 1956 Racine 400-round nose is in need of new spark plugs. The tractor has been converted to 12V. The tractor is also equipped with a Pertronix electronic ignition conversion with the coil. On recommendation, I am going with Autolite 3116s. My question is about the spark plug gap. The owner's manual says .025 gap. Pertonix recommends that the gap be increased to a maximum of .007 over the factory specification. Autolite says the 3116 plugs should be gapped at .025.
What are your thoughts? Is it really an exact science? Compromise at .030?
Thank you!
What are your thoughts? Is it really an exact science? Compromise at .030?
Thank you!