Some questions:

Why would the cap pop off?

Is the battery good?

How much experience do you have working on these things?

How do the new cap and rotor compare visually to the old?

The rotor end should not touch the cap electrodes.

How do you know the wires are in the right order?

Mike

__________________
1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra