Timing, this is what i did - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bigd65 · 12-02-2002, 11:17 PM

i changed out the harmonic balancer, the other one did not slip, but i changed it anyways, IT WAS FREE FROM MY BUDDY THAT OWNS THE WRECKING YARD. anyway, it matched up the same but the rubber that the counter weight is set in was all chewed up and sticking out. i changed it, and also put NGK V-GROOVE spark plugs (size is UR5) and then i reset my timing to 10* and as far as i can tell, NO SPARK KNOCK, i will let yall know tomarrow, gotta drive to HOUSTON for an extra job so i will tell yall if its back on the freeway, but as of now and around town, NO SPARK KNOCK. yippeeeeeeee.

oh yea, i also fill the tank with MID-GRADE gas. so i think maybe all this together may have solved my problem

thanx for all yall that helped and had the patience to stay with me on this.

**swervin ervin** · 12-03-2002, 12:40 AM

Jeff,

I really hope it works. If it does, maybe you can fine tune it a little more. Good luck with it and keep us informed on how it goes.

bigd65 · 12-03-2002, 05:04 PM

well i have just minor spark knock at wide open throttle, well not really wide open. when i hit pasing gear, nothing, when it comes out of passing gear that is when i hear what spark knock is left. well back to the timing lite, i am still trying to get ahold of the buddy that has the dial back lite. or order my springs from summit and then get the timing tape

12-02-2002, 11:17 PM	#1
bigd65 Registered User Join Date: Mar 2000 Location: Lake Jackson, TX. Posts: 1,930	Timing, this is what i did i changed out the harmonic balancer, the other one did not slip, but i changed it anyways, IT WAS FREE FROM MY BUDDY THAT OWNS THE WRECKING YARD. anyway, it matched up the same but the rubber that the counter weight is set in was all chewed up and sticking out. i changed it, and also put NGK V-GROOVE spark plugs (size is UR5) and then i reset my timing to 10* and as far as i can tell, NO SPARK KNOCK, i will let yall know tomarrow, gotta drive to HOUSTON for an extra job so i will tell yall if its back on the freeway, but as of now and around town, NO SPARK KNOCK. yippeeeeeeee. oh yea, i also fill the tank with MID-GRADE gas. so i think maybe all this together may have solved my problem thanx for all yall that helped and had the patience to stay with me on this. __________________ 2004 Silverado Crewcab (Dark Spiral Gray)

12-03-2002, 12:40 AM	#2
swervin ervin You get what you pay for Join Date: Dec 1999 Location: Cherryville, NC Posts: 4,798	Jeff, I really hope it works. If it does, maybe you can fine tune it a little more. Good luck with it and keep us informed on how it goes. __________________ Mike 1985 Chevy C-10

12-03-2002, 05:04 PM	#3
bigd65 Registered User Join Date: Mar 2000 Location: Lake Jackson, TX. Posts: 1,930	well i have just minor spark knock at wide open throttle, well not really wide open. when i hit pasing gear, nothing, when it comes out of passing gear that is when i hear what spark knock is left. well back to the timing lite, i am still trying to get ahold of the buddy that has the dial back lite. or order my springs from summit and then get the timing tape __________________ 2004 Silverado Crewcab (Dark Spiral Gray)



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