Spark Plug Hockey Pucks ?

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Jul 17, 2004 | 01:06 PM

Oldvetter

Thread Starter

Le Mans Master

Joined: Feb 2002

Posts: 6,937

Likes: 21

From: Waldorf MD

Spark Plug Hockey Pucks ?

Does anyone know if AC-931 25162487 is the stock plug that comes with 'Hockey Pucks" ? (on a 1998 C5 Coupe)

I just changed my plugs today at 77,854 miles to Bosch Plus 4's, car seems to run smoother and have better throttle response. Idle is still a little lumpy (guess due to cam).

None of my plugs had a hockey puck, didn't look too bad though, gap was wide (I estimate .070).

Jul 17, 2004 | 03:22 PM

TomT

Burning Brakes

Joined: Feb 2004

Posts: 1,024

Likes: 108

From: Ocala, Fl. State of Confusion

Rough idle

I switched to Magnacore plug wires and that smoothed out about 50% of my rough idle.

Jul 17, 2004 | 09:03 PM

Richin Chicago

Safety Car

Joined: Sep 2001

Posts: 4,411

Likes: 1

From: Wilmington NC

Quote:

Originally Posted by Oldvetter

It's been some time but ti sounds like the right part number. Mine had 5 lugs with pucks still (2000 HT) but I changed them at 20,000 miles.

Jul 18, 2004 | 11:21 AM

IM QUIKR

Melting Slicks

Joined: Jan 2003

Posts: 3,251

Likes: 4

Quote:

Originally Posted by Oldvetter

I've wondered about the relationship between missing spark plug pucks and oil consumption. How does your LS1 do with oil?

I pulled mine out at 15K miles and all the pucks were accounted for and no oil consuption.

Jul 18, 2004 | 11:30 AM

Richin Chicago

Safety Car

Joined: Sep 2001

Posts: 4,411

Likes: 1

From: Wilmington NC

Quote:

Originally Posted by drcoffee

I had sevral puck missing and don't consume oil when not on the track. And this is a car that has 4 years of heavy roadcourse use. These pucks are no bigger than a pencil dot. I believe they blow right out the exhaust port.

Jul 18, 2004 | 11:45 AM

Oldvetter

Thread Starter

Le Mans Master

Joined: Feb 2002

Posts: 6,937

Likes: 21

From: Waldorf MD

Quote:

Originally Posted by drcoffee

My C5 uses NO oil between changes (I go by the DIC which is usually 6200-6800 miles, by the way I've backed up these intervals by Oil Analysis, they say I can go longer, but as I have an extended warrenty I go by my DIC). My oil doesn't even change color that much, it never gets very dark.

I don't think the 97-99 C5's had a oil consumption issue, I think they changed rings later that gave problems.