The engine fires (got new plugs) but dies at under 1 grand unless you give it constant gas. I'm possitive it's either the vacuum advance or the carbs- I want to lean towards the vacuum advance. Has anyone tuned or tweaked their vacuum advance, and if so, how do you do it? I know something's wrong but I need to know how to fix it!

Dave

Makes sure to check and double check your firing order, it is 1-5-3-6-2-4 I had a bad problem with this earlier today.

Check for vacume leaks . Make sure all the vac hoses are connected like for the brake booster and such , and do check the plug wires and the fireing order. The vacume advance does not adjust.

thanks 4 tips, i'll check the firing order

Dave

sorry to just but in like this, but how do you check the firing order?

sorry to just but in like this, but how do you check the firing order?

look at the top of the dist. cap and trace the plug wire that connects to the plug that is further most to the front of the engine. This is # 1 the dist turns in a counter clock wise direction so the next wire should go to the 5th plug back from the front and so on the fireing order is as follows 1 , 5 , 3 , 6 , 2 , 4 . hope this helps . Gary

look at the top of the dist. cap and trace the plug wire that connects to the plug that is further most to the front of the engine. This is # 1 the dist turns in a counter clock wise direction so the next wire should go to the 5th plug back from the front and so on the fireing order is as follows 1 , 5 , 3 , 6 , 2 , 4 . hope this helps . Gary

Thnanks, Thats just what i needed.

Help, I am having the same problem with the firing order, where does the #1 wire go to the dist. cap. Shane

#1 is the first one clockwise from the clip above the vaccum control unit.

Another possibility to check for the poor idle is a dirty fuel filter. I was having a similar idle problem, but my '73 240Z was also hard to start and having trouble achieving speeds above 60 mph. I was pulling my hair out, checked the carbs, checked the timing, checked the plugs, everything was good. As a last resort I replaced the fuel filter and the trouble went with it.

Kenny P.

I figured out where the plugs go but my car still idles messed up. I checked for spark on all wires and cracks in dist., it looks like I will have to go for the fuel filter next, sorry to butt in on the thread you guys. My heater core was about to go too and I bypassed it and just ran the heater hose from the water pump to the back of the block where the other hose hooks up, is this alright to do or will it do something bad :paranoid:

Have you checked the choke? Maybe it isnt opening right. Just a guess