COAL VALLEY, Ill. (AP) _ Organizers of the perennially broke Quad Cities Open golf tournament aren't sure how they'll raise all the money, but said Wednesday there's no doubt there will be a 1986 tourney.

''The tournament will go on next year; there's no question about that,'' said Jim Epperly, chairman of the tourney's board of directors. ''But we haven't worked out details with sponsorship and financing.''

Epperly said the Professional Golfers' Association wanted to know earlier than usual if local organizers felt able to hold a 15th tournament because of the event's past financial troubles, aggravated by its scheduling. The Quad Cities Open is held the same weekend as the more glamorous, televised British Open.

''We told the PGA on August 20 that we will have a tournament next year with a minimum purse of $300,000. We are committed,'' he said.

''Just to keep the purse at $300,000, we have to make up about $65,000'' provided this year in one-time-only grants to boost the purse from the former $200,000, said John Wetzel, another Quad Cities tourney director.

''We're confident we can do that without any problem.''

Even with the grants - from an Illinois tourism fund, several surrounding cities and the PGA - the 1985 purse was the smallest on the tour.

Wetzel and Epperly also said the tournament board hopes to raise next year's purse to $400,000.

The PGA underwrites about one-third of the purses for non-televised tour events such as the Quad Cities Open through its contracts with national television networks, he said.