timing help

-
7

72swingerwoman

Active Member
Joined
Jul 9, 2007
Messages
38
Reaction score
0
I have a 318... the previous owner put in a comp cam I'm not sure which one but is there a website on where to look or find out timing advance for it? Want to double check my timing on the car and having troubles finding the information I need
Thanks
 
Won't be a book that will tell you where to set initial ignition timing with those internal engine changes.

Set it with a vacuum gauge. Advance it, readjusting idle to your desired rpm until it gets to highest point, then back off timing 1", lock it down, reset rpm and see where it lands on the balancer. Adjust the idle mix screws and you should be really close.

After you are done, make sure it starts ok when warm, no starter kickback or really labored on starter. If it does, you need to retard the timing a bit until it does start OK.
 
cam timing, been having over heating issues and want to make sure its timed out right and also starting issues
 
crackedback said:
Won't be a book that will tell you where to set initial ignition timing with those internal engine changes.

Set it with a vacuum gauge. Advance it, readjusting idle to your desired rpm until it gets to highest point, then back off timing 1", lock it down, reset rpm and see where it lands on the balancer. Adjust the idle mix screws and you should be really close.

After you are done, make sure it starts ok when warm, no starter kickback or really labored on starter. If it does, you need to retard the timing a bit until it does start OK.
Click to expand...

Then check for total.
 
72swingerwoman said:
cam timing, been having over heating issues and want to make sure its timed out right and also starting issues
Click to expand...
I haven't heard of cam timing causing overheating problems but I guess it's possible. If you haven't done it before, it looks a little intimidating to check and/or adjust valve timing but if you get a good degreeing kit (Summit carries one for around $75) and a good instruction manual, it's not bad at all. It requires you to pull off the timing cover however so it's not just a 1/2 hour job. Your first time will probably take all day ....maybe two! Ignition timing is much more likely to cause overheating (along with dozens of other things). Usually from the timing being too retarded.
 
I'm a dumbass....I meant ignition timing..been a long fighting struggle w my car this season every thing is blurring together....its ignition timingg only thing I know is that is changes w a different cam in the motor.....
 
15 degrees initial , 35 total , No vacuum advance. One medium spring take the heavy one out . close up the inside of the advance slots form 1/2 that they com stock to 3/8's. This is what you need to do when installing any cam with greater than 450 lift. Stock came are 444 lift . 455 for 68 340 4spd. and they came with an altered advanced duel point distributor. I do this on all Cammed cars that come to me that have your issues with overheat , Idle in gear, no low end powre . or breaking up on the high end. This will get you where you need to be with ignition timing. I can do distributors for $15 dollars plus shipping. Steve
 
You must log in or register to reply here.
-

Back
Top