Re: Cold vs Hot spark plugs ... how are they different ???

Posted by G-MAN on September 05, 2002 at 13:45:55 from (206.106.139.74):

In Reply to: Cold vs Hot spark plugs ... how are they different ??? posted by Alberta Mike on September 05, 2002 at 12:31:09:

Mike, the term "hot" or "cold" when referring to spark plugs refers to the plugs ability to transfer heat out of the combustion chamber. The heat range of a spark plug is determined by the length of the ceramic insulator around the center electrode. A "hot" plug will have a longer insulator, which keeps the electrode temperature up and generally increases chamber temperature. A "cold" plug will have less insulation and will transfer it's heat to the cylinder head and cooling system more readily. Generally, in high performance applications (nitrous oxide, turbocharged engines, etc), a colder plug is used to lessen the heat load on the engine. Hotter plugs are generally used in stock engines to produce a better fuel burn and reduce emissions. A colder plug will also help to prevent pre-ignition and detonation in the engine. When experimenting with different heat ranges, it's best to go one step at a time or so, so you don't overdo it. The heat range has nothing to do with how hot of a spark, type of spark, etc.

Follow Ups:

Post A Followup Name: E-Mail: Subject: Re: Re: Cold vs Hot spark plugs ... how are they different ??? Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]