The already divisive politics of suburban Maryland development grew more heated yesterday as the executives of both Prince George's and Montgomery counties moved to replace representatives that have displeased them on the Washington Suburban Sanitary Commission.

Prince George's Executive Lawrence J. Hogan, a Republican, found himself in his most heated confrontation with the all-Democractic County Council this year when his effort to replace Democratic WSSC commissioner Andrew Vislosky with a member of his own party was blocked by council members.

And the announcement by Montegomery Executive Charles W. Gilchrist, a Democrat, that he intended to replace Montgomery commissioner Bert Cumby, a Republican, with Democrat Jesse Maury drew predictions that Cumby would fight his removal, possible in court.

Both Gilchrist and Hogan would like to replace WSSC commissioners appointed by their predecessors because, they say, their views have not eeen represented fully on the commission.

The country WSSC governs the sewer and water lines essential to new housing and industrial developments. The agency's six commissioners have frequently divided along county lines in fights over the use of sewerage treatment plants and other suburban development issues.

Prince George's council members rejected Hogan's nomination of John W. Chesley, a self-employed engineer, by a 10-to-1 vote after council members charged that Hogan was trying to "threaten" them.

Hogan's son, Lawrence Jr., accused the council, in turn, of having summarily rejected Chesley bcause of "selfish political reasons."

In a statement prepared after a telephone conversation with his vacationing father, Lawrence HobHogan Jr., also said that if the council did not approve Chesley, the county executive "will not participate in any further negotiations over sewer and water issues until he has his own representative on the board."

But Prince George's County Council members argued yesterday that no changes should be made in the county's WSSC representaties because of the complex negotiations under way between Montgomery and Prince George's over sewer capacity.

The council decided, members said, that Vislosky, who was appointed by Hogan's Democratic predecessor, Winfiled M. Kelly Jr., should not be replaced because he has four years exprience on the WSSC.

Council member Francis B. Francois said Chesley "would be coming in cold" at a time when "there is a reasonable possibility" of resolving the sewer problems between Montgomery and Prince George's.

Council Chairman William B. Amonett said the council told Hogan before yestersay's meeting that it did not intend to approve a new representative on the WSSC.

"We intentionally did that to eliminate any embarassament for MMr. Chesley," Amonette said. "Now the embarrassment is here."

In Montgomery, Gilchrist's nomination of Maury, a business consultant, to replace Cumby and a secondd nomination of Sally Kanchuger to fill a position being vacated by Vera Berkman still must be considered by the County Council.

County members said yesterday that Kanchuger, an unsuccessful Democratic candidate for the County Council last fall, was likely to be approved, but that Maury's nomination might face trouble because some progrowth county residents have charged that he favored only limited county development.

Gilchrist and several council members have alleged that Cumby voted against the county's interest on various issues: Cumby, who sent the council a letter defending his activities in May and sbsequently hired civil right lawyers said yesterday he had "no comments on the advice of council."

Maury has been criticized by councl members who believe he belongs to a "no growth" faction in Montgomery. Gilchrist argued however, that Maury was only for "careful planning."