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305 plugs and wire.

k5ryder

k5ryder

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About to change plugs wire cap rotor and valve cover gaskets. I went through and traced each wire from the plug to cap. Attached you will see the diagram I wrote down. The numbers are just a reference to natch everything up. Does this look right?

vy8e3ape.jpg
 
That is very wrong. That is not how gm numbers their cylinders. Google " chevy 305 firing order" for a correct picture.
 
I know that's not how they number their cylinders I just wrote them down like that
 
just do one cylinder at a time.. change the plug, than the wire.. move on to the next one.. rinse.. repeat..
 
Firing order is 1-8-4-3-6-5-7-2..distributor rotates clockwise..

Cylinder #1 is the one furthest forward on the drivers side--with #3,#5,and #7 behind it...

Passenger side cylinders are the even numbered ones--#2-#4-#6-#8 going from front to rear...

One at a time method works great-- if no one before you screwed up the firing order...I've copied other mechanics mistakes before!..
 
diesel4me said:
One at a time method works great-- if no one before you screwed up the firing order...I've copied other mechanics mistakes before!..
Click to expand...


much much more likely to have an issue ASSUMING you know where #1 is on the cap and pulling them all off.... coughgasmonkeygarageidjitscough :whistle: :haha:

if the truck is running "ok" it's HIGHLY doubtful one is out of place when you start...
 
unless of course the dizzy has been restabbed differently, than it wont start... :whistle: coughgasmonkeygarageidjitscough :haha:
 
If you're referring to my updated diagram, I used his as reference, if it's wired up the way he says it is with placement of each number, it's still in "factory position" :D

and should still fire up. :tongue1:
 
I thought my post was pretty self-explanatory... if what you have labeled as #1 on the cap is not correct, the diagram is useless and counter-productive...

again, coughgasmonkeygarageidjitscough


guys who don't wrench for a living should be doing wires one at a time.. anything else, is stooooopid.. :dunno: thus, my first post in this thread...

I do 2 or 3 dozen dizzy stab lace ups/ wire changes a yr minimum, bit different for me as opposed to joe home mechanic changing wires every couple yrs, if that.. this is EXACTLY why guys come in here with "oh, I did a tune up and it won't run" blah, blah posts... is it a tad slower for a pro wrench? sure, but it will save the home wrencher from a f*ckup and whio cares about it taking an extra 4 minutes in your driveway...
 
I don't wrench for a living, and I take offence to the above post. I have taken off a few dizzys in the past 10 years to know to mark where the rotor is at TDC and where the rotor gear released from the cam gear. I also know to look at a manual when re-installing wires when they have all been taken off the cap.
 
whatever... it's just common sense when changing wires that doing them one at a time is a SAFER PROCEDURE than just ripping them all off.. arguing that it isn't true, is silly... why complicate things over maybe, a couple minutes of saved time, if that? we're not even talking about a dizzy stab, your not finding TDC, it's a wire change..
 
Correct, but saying that backyard mechanics aren't smart enough to do it is insulting. You are basing your opinion on a small percentage of new members on this site that have never changed a spare tire but now want to be their own mechanic.
 
wasn't saying they weren't smart enough... I was saying for someone who does it infrequently the safer/foolproof way is to do one at a time...
 
I didn't mean to offend anyone... but I think mine was THE best answer given...
 
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