I know what I need to do for the most part, but i'm kind of confused. I know I disconnect that wire, use some white paint in the groove in the pully.
Where exactly do I aim the thing though? I know it goes straight down, but straight down at what? Is the light being aimed slightly off going to screw up the reading? And once its aimed, how do I figure out what the timing is?

Thanks.

 

gotta hook up the light to #1 plug wire and aim it at the tab above the harmonic balancer. you should be able to see where the timing mark is pretty easily.

 

Alright, I did just that. How do I get the timing from doing this? It looks like there is a very faint line sticking foward of the 2nd point, is that where my timing is?
If it is it is thats 2 degrees advanced right? And it should be back at the tip of the 1st V for stock on a 305tbi right?

 

try to clean up the tab so you can see the #'s and lines clearly. i've done this so many times i know where 6 BTDC is already. the first V pointing out should be 4, V pointing in is 6, then out again will be 8, and so on.

 

Alright, ill go clean em up, but that line i'm seeing, that should be where the timing is right?

 

the line on the balancer you see when the light flashes should be lined up with whatever # should be set for timing. on mine it's 6 degrees.

 

305 timing should be 0* factory setting

 

Alright I know how to check timing now, thanks.
I can see the lines fine, now I just need to figure out how to get in there to clean it off so I can see the numbers.

Thanks for the help.


A little engine degreeser goes a long way (and also burns your eyes with the fumes apparently). Anyway i'm at 4 advanced. Thanks again.

 

I think if i am right...the LARGE V is 0*

 

Want to know why I was having a hard time seeing it? I was holding the haynes manual upside down when I looked at the cylender numbers, and I had it on the #2 cylender. It is actually advanced 4 degrees though, don't ask me how I got an accurate reading with it on the wrong wire.

 

The easy way to remember the cylinders are : right side (of engine when facing it) odd cyliners 1,3,5,7 (front to back).......Left side ....even cylinders 2,4,6,8 (front to back)

 

David, whats the difference in Base timing and intial timing?