high acelaration miss problem, Need Help!!!
Thread Starter
4th Gear
Joined: Mar 2009
Posts: 4
Likes: 0
high acelaration miss problem, Need Help!!!
I just installed an HEI distributor frm midamerica motorworks in my 74 vette, it is a 350 4spd, I had a slight cutout before i installed, however now it is much worse with new distributor, At around 3750 rpm's it starts to cut out really bad, I installed as told with timing set without vacuum at 6 deg. when you hook up vacuum it goes of the chart at idle?
There were also 2 wires hot from ignition I hooked to battery side of distributor, same wires from pos. side of old coil. I'm really out there guy's. Can anyone shed light on my problem?
There were also 2 wires hot from ignition I hooked to battery side of distributor, same wires from pos. side of old coil. I'm really out there guy's. Can anyone shed light on my problem?
Le Mans Master
Joined: Nov 2008
Posts: 5,691
Likes: 12
From: columbus oh
I just installed an HEI distributor frm midamerica motorworks in my 74 vette, it is a 350 4spd, I had a slight cutout before i installed, however now it is much worse with new distributor, At around 3750 rpm's it starts to cut out really bad, I installed as told with timing set without vacuum at 6 deg. when you hook up vacuum it goes of the chart at idle?
There were also 2 wires hot from ignition I hooked to battery side of distributor, same wires from pos. side of old coil. I'm really out there guy's. Can anyone shed light on my problem?
There were also 2 wires hot from ignition I hooked to battery side of distributor, same wires from pos. side of old coil. I'm really out there guy's. Can anyone shed light on my problem?
Thread Starter
4th Gear
Joined: Mar 2009
Posts: 4
Likes: 0
I have changed plugs right before changing distributor, also installed new aacel 9000 hei wires, one thing puzzled me installing new dist. was 1 wire hookup, there were 2 small wires together going to the old coil system on pos. side, so we checked, both were hot on ignition, and we just plugged them back together to batt. or ign. side to new hei distributor. plugged vac. line that was from old hookup on new distributor, I just was figuring it had to be the timedport vac. since it was same hose.
Thread Starter
4th Gear
Joined: Mar 2009
Posts: 4
Likes: 0
Hey Guy's, Found my problem if this ever happens to anyone else, on the older points type distributors the wire used for the coil is 12 volts, however it is a resistor type wire..... looses voltage under heavy load.
Thank God this was not as bad as I thought. Now I just have to figure out how to get to it for replacing. I hooked a jumper to distributor on a constant hot 12 volts and she ran like a dream. Any suggestions on how to trace the resistor wire to where it stops to replace? or maybe another good fire source hot on ignition under the hood? Thanks
Thank God this was not as bad as I thought. Now I just have to figure out how to get to it for replacing. I hooked a jumper to distributor on a constant hot 12 volts and she ran like a dream. Any suggestions on how to trace the resistor wire to where it stops to replace? or maybe another good fire source hot on ignition under the hood? Thanks
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
There should have been 2 wires on th + side of the coil before. 1 yellow to the starter is the bypass wire for starting, you can eliminate that one all together. The other wire goes to the firewall connector and that one is the resistance wire. You can clip and splice in a new wire at the firewall connector and you should be good to go. I have 2 drawings, 1 shows it as a White wire with red/black tracer 20#, the other shows it as Black and pink.
Melting Slicks
Joined: Apr 2001
Posts: 2,030
Likes: 363
From: Lubbock Texas
Hey Guy's, Found my problem if this ever happens to anyone else, on the older points type distributors the wire used for the coil is 12 volts, however it is a resistor type wire..... looses voltage under heavy load.
Thank God this was not as bad as I thought. Now I just have to figure out how to get to it for replacing. I hooked a jumper to distributor on a constant hot 12 volts and she ran like a dream. Any suggestions on how to trace the resistor wire to where it stops to replace? or maybe another good fire source hot on ignition under the hood? Thanks
Thank God this was not as bad as I thought. Now I just have to figure out how to get to it for replacing. I hooked a jumper to distributor on a constant hot 12 volts and she ran like a dream. Any suggestions on how to trace the resistor wire to where it stops to replace? or maybe another good fire source hot on ignition under the hood? Thanks
DC
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