Spark plug wiring diagram

Detailer054 · 01-08-2008, 06:16 PM

Hello
I have a 1977 Chevy dump truck I am having trouble with the plug wires being in the right order,I am not sure of the engine size i tryed wiring it for a 350 but it is still kicking back when trying to start,I had done a tune up on it and before that it was running Ok so i believe so i am thinking it is either a 262,265,or 267 CID I have tried to find something online with a wiring diagram but no luck,The engine in the truck has been changed so i have no idea what it is for sure.
Any help please
Thank you
Larry

436'd skylark · 01-08-2008, 06:33 PM

you can wire like any other sbc, they all have the same firing order, 18436572..

75K30 · 01-08-2008, 06:39 PM

If you are running just about any chevy V8, the firing order is still 1,8,4,3,6,5,7,2.
Did you remove the distributor at all.
Could you have started your first wire in the wrong spot on the cap? Could be too advanced by being one position off of the dist. cap.

Detailer054 · 01-08-2008, 06:55 PM

Hello
No i didn't remove the distributor at all but i am not sure if the number one wire is on the distributor cap in the right order,The truck cranks over fine but when it fires i am getting kick back,How would i find out what one is the number one post on the distributor cap.
Thank you for your help
Larry

436'd skylark · 01-08-2008, 07:47 PM

take off the cap, and bring the motor to TDC. there is a mark on the harmonic balancer, and a timing tab sticking of the timing chain cover. line the balancer up to the "0" degree mark. then your rotor will either be pointing at the number 1, or the number 6 post on the cap. if its completly opposite of where you think the #1 post was, then the rotor is likley pointing towards the number 6 post.

it sounds like you have them all advanced a post. the rotor spins clockwise on a small block chevy, so move try moving all the wires one position clockwise.

99silverado · 01-10-2008, 04:16 PM

Number One on the distrobutor should point thward the driver side headlight. That's just a rule of thumb to give you a place to start.

436'd skylark · 01-10-2008, 06:47 PM

Quote:

Originally Posted by 99silverado

Number One on the distrobutor should point thward the driver side headlight. That's just a rule of thumb to give you a place to start.

thats not a reliable method. the distributor can be stabbed in any direction as long as the oil pump drive seats. number one can be any post. no such thing as "being off a tooth"..

75K30 · 01-10-2008, 08:44 PM

Quote:

Originally Posted by 436'd skylark

thats not a reliable method. the distributor can be stabbed in any direction as long as the oil pump drive seats. number one can be any post. no such thing as "being off a tooth"..

Good point Joe.

o3shortbed · 01-10-2008, 11:37 PM

Quote:

Originally Posted by 75K30

Good point Joe.

just seing what a quote does

01-08-2008, 06:33 PM	#2
436'd skylark Senior Member Join Date: Mar 2007 Location: Buffalo Ny Posts: 620	you can wire like any other sbc, they all have the same firing order, 18436572.. __________________ Joe 89 K2500 Chevy, Wee-Oh-five 285K miles, completly rebuilt needs a motor, bad 1962 IHC Scout All Wheel Drive (Scout speak for locking axles) 152 ci, dana everything else

01-08-2008, 07:47 PM	#5
436'd skylark Senior Member Join Date: Mar 2007 Location: Buffalo Ny Posts: 620	take off the cap, and bring the motor to TDC. there is a mark on the harmonic balancer, and a timing tab sticking of the timing chain cover. line the balancer up to the "0" degree mark. then your rotor will either be pointing at the number 1, or the number 6 post on the cap. if its completly opposite of where you think the #1 post was, then the rotor is likley pointing towards the number 6 post. it sounds like you have them all advanced a post. the rotor spins clockwise on a small block chevy, so move try moving all the wires one position clockwise. __________________ Joe 89 K2500 Chevy, Wee-Oh-five 285K miles, completly rebuilt needs a motor, bad 1962 IHC Scout All Wheel Drive (Scout speak for locking axles) 152 ci, dana everything else

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01-08-2008, 06:16 PM	#1
Detailer054 Full Member Join Date: Dec 2007 Location: Medina,Ohio Posts: 14	Spark plug wiring diagram Hello I have a 1977 Chevy dump truck I am having trouble with the plug wires being in the right order,I am not sure of the engine size i tryed wiring it for a 350 but it is still kicking back when trying to start,I had done a tune up on it and before that it was running Ok so i believe so i am thinking it is either a 262,265,or 267 CID I have tried to find something online with a wiring diagram but no luck,The engine in the truck has been changed so i have no idea what it is for sure. Any help please Thank you Larry

01-08-2008, 06:39 PM	#3
75K30 Senior Member Join Date: Jul 2006 Posts: 2,518	If you are running just about any chevy V8, the firing order is still 1,8,4,3,6,5,7,2. Did you remove the distributor at all. Could you have started your first wire in the wrong spot on the cap? Could be too advanced by being one position off of the dist. cap.

01-08-2008, 06:55 PM	#4
Detailer054 Full Member Join Date: Dec 2007 Location: Medina,Ohio Posts: 14	Hello No i didn't remove the distributor at all but i am not sure if the number one wire is on the distributor cap in the right order,The truck cranks over fine but when it fires i am getting kick back,How would i find out what one is the number one post on the distributor cap. Thank you for your help Larry

01-10-2008, 04:16 PM	#6
99silverado Full Member Join Date: Jan 2008 Location: Indiana Posts: 10	Number One on the distrobutor should point thward the driver side headlight. That's just a rule of thumb to give you a place to start.