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+--- Thread: Cool Spark Plugs (/showthread.php?tid=6259)
Cool Spark Plugs - GSAviator_imp - 04-15-2013
I have not seen it mentioned anywhere else, but in the set-up notes (the sheet that cautions to clean the pipes) it is mentioned that the sparkplugs are oil-cooled. Nice touch. Maybe has something to do with emissions. Anybody know?
RE: Cool Spark Plugs - the Ferret - 04-15-2013
Yes there are oil galleries that run around each spark plug seat to cool that area of the cylinder head. Honda claims this is the hottest spot on the head and the oil galleries enable this area of the CB to run on par with a liquid cooled bike cylinder head
RE: Cool Spark Plugs - Randy B - 05-05-2013
So long as those passages don't get coked up over time.
RE: Cool Spark Plugs - M3-SRT8_imp - 05-27-2013
(05-05-2013, 03:10 AM)Randy B_imp Wrote: So long as those passages don't get coked up over time.
Unlikely, if you stick to recommended oil change intervals. Modern synthetic oils have very high temp ratings.
RE: Cool Spark Plugs - furious_blue_imp - 05-28-2013
(05-27-2013, 12:40 PM)M3-SRT8_imp Wrote:(05-05-2013, 03:10 AM)Randy B_imp Wrote: So long as those passages don't get coked up over time.
Unlikely, if you stick to recommended oil change intervals. Modern synthetic oils have very high temp ratings.
Unlikely, if you stick to recommended oil change intervals. Modern synthetic oils have very high temp ratings.
I wonder if these are those bolted/screwed on finned things that surround the spark plugs on the head. Seems likely !
Then I wonder if oil is actually circulating through those finned bolt-ons or if they are fins only with no oil passages...
RE: Cool Spark Plugs - FUZZY_imp - 06-06-2013
I see no other purpose for them.
RE: Cool Spark Plugs - the Ferret - 06-06-2013
Seeing as how they bolt on I doubt theres oil in there. I think they just direct additional air around spark plug base.
RE: Cool Spark Plugs - FUZZY_imp - 06-06-2013
4COVER, PLUG HOLE12511-MGC-920
$19.75
This is what they are called. They have a gasket that goes between them n head. Didn't see any oil passage holes in gasket, just the 2 bolt holes.
RE: Cool Spark Plugs - 6.5kev_imp - 06-07-2013
(06-06-2013, 12:39 PM)FUZZY_imp Wrote: 4COVER, PLUG HOLE12511-MGC-920
$19.75
This is what they are called. They have a gasket that goes between them n head. Didn't see any oil passage holes in gasket, just the 2 bolt holes.
It seems there wouldn't be a gasket if they are to transfer heat away from the head.
RE: Cool Spark Plugs - Lord Popgun - 06-07-2013
Yeah, thats why the crankcase and head never get hot. The gaskets stop that...