Reply to "My engine strarted popping last night."

icoleMember

The head is aluminum, and it has SVO stamped on the side. The plug 5754 is holding has a shorter reach. Is this the difference, or is there something on the seal itself that is different. If I get the same plug I have but with a tapered seat, and is there any harm if it should have had the washer?

quote:
Originally posted by MARLIN JACK:
...By the way...'What Heads are You running'??
Stock Cleveland heads take a SparkPlug with a 'Tapered' Seat! What head are You using a Plug with a Metal 'O' Ring Gasket, In?? And it looks to Me, that ring hasn't even been Compressed Fully to Seat! Are You running the Wrong SparkPlug? Most All Aluminum Heads take a 'Flat Seat' Ring Gasket, Sparkplug! NO Tapered Seat Plugs in Aluminum Heads; The Seat would Errode and The Taper Could Crack Them!...

10/20/113:37 AM

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