VATICAN CITY – The Vatican sought Saturday to quash speculation that divisions among cardinals could drag out the conclave to elect the new pope, while preparations for the vote plowed ahead with firefighters installing the Sistine Chapel chimney that will tell the world when a decision has been reached.

But the specter of an inconclusive first few rounds of secret balloting remained high, with no clear front-runner heading into Tuesday’s papal election and a long list of cardinals still angling to discuss the church’s problems ahead of the vote.

“You don’t have your mind absolutely made up” going into the conclave, U.S. Cardinal Justin Rigali, who participated in the 2005 conclave that elected Benedict XVI, told The Associated Press this week. “You have your impressions.”