Engine Performance problem
1969 Dodge Dart 6 cyl Two Wheel Drive Automatic
I have a 1969 Dodge dart with a 225 Slant six and a 1920 holley carb. I cleaned and rebuilt the carb, put a new ignition coil on, new spark plugs, new points (proper dwell angle set), new condenser for the distrb, and new ballast resistor. Did not put in new distrb (doesn’t seem to be worn).
I found out that the timing mark on the pulley was off, so I had to find TDC and make a new mark with white out. After putting the distrb back in, the car started up right away versus when the timing mark was off.
The problem is that:
A. It runs strong for about 10-15 min then starts to slowly drop in rpm till it stalls out.
B. I can’t get the timing mark to line up with 5 degrees BTDC (according to the Haynes manual). The distrb ends up being fully retarded yet it won’t go past 0 degrees TDC. Some times it jumps over but rarely.
C. There is some smoke but only at certain points when adjusting the timing and the smoke is not thick white smoke, not black, and not blue. It’s just an accumulation of smoke.
D. Initially, the carb seems like it’s at proper idle then of course, as mentioned above, it drops in rpm. Can never get it set right. The carb mixture screw is set some where around 1 ¾ to 2 turns out from fully in (can’t do any better). In addition, the choke is working fine. The carb is not a cleaner air package/emissions type of carb. The carb itself is also not flooding.
E. Also, in the past, after rebuilding the carb and adjusting the settings (because the rpm was too high at idle) it would rev all the way through the RPM range in Park but as soon as you put in drive and put on the gas it would stall out. This was before pulling out the distrb and putting in new spark plugs, points, and condenser. I have not been able to take it out yet because I was still working on why it keeps stalling at idle, so I do not know if it stalls out when in drive.
I would appreciate if somebody could help me out on this problem.
Tuesday, June 30th, 2009 AT 12:37 AM