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pancherj · 06-26-2009, 07:52 AM

I posted a reply on this yesterday. It was there for a few secondes and then disappeared...

Anyway, if you have an adjustable light, the procedure for setting the timing is pretty straight forward. First, make sure the TDC mark on the damper is visible (white paint or chalk works). Start the car and let it warm up and reach normal idle (900 rpm or so). Unhook vacuum advance if you have it (can't tell from the photo). Turn the nob on your shift light until the pointer and TDC mark line up. Read the gun...this is your base timing (12 to 16* should be good). Now, have someone take the engine up to about 3000rpm. Repeat the procedure (vacuum advance still unhooked). Read the gun. This is your mechanical advance. By 3000RPM, your mechanical advance should be all in. You should be somewhere around 36*. If you are a lot less than that, your mechanical advance needs adjusted (lighter springs to allow the advance timing to come in quicker).

Remember, these timing numbers are general numbers. You will need to find out what works best for you. Also, your problem doesn't sound like a timing issue. Did you get the right valve springs with that cam? It sounds like valve float to me.

06-26-2009, 07:52 AM	#17
pancherj Staging Lane Trader Rating: 0 Join Date: Oct 2006 Posts: 72	I posted a reply on this yesterday. It was there for a few secondes and then disappeared... Anyway, if you have an adjustable light, the procedure for setting the timing is pretty straight forward. First, make sure the TDC mark on the damper is visible (white paint or chalk works). Start the car and let it warm up and reach normal idle (900 rpm or so). Unhook vacuum advance if you have it (can't tell from the photo). Turn the nob on your shift light until the pointer and TDC mark line up. Read the gun...this is your base timing (12 to 16* should be good). Now, have someone take the engine up to about 3000rpm. Repeat the procedure (vacuum advance still unhooked). Read the gun. This is your mechanical advance. By 3000RPM, your mechanical advance should be all in. You should be somewhere around 36*. If you are a lot less than that, your mechanical advance needs adjusted (lighter springs to allow the advance timing to come in quicker). Remember, these timing numbers are general numbers. You will need to find out what works best for you. Also, your problem doesn't sound like a timing issue. Did you get the right valve springs with that cam? It sounds like valve float to me.