"There comes a time," Jim Marshall said yesterday, and, well, only Gordie Howe goes on forever. ". . . A time," the NFL's oldest pro declared in Bloomington, Minn., "when common sense comes before pride. I'm still capable of playing but I think it's time."

So, the defensive end with the record 280-game NFL consecutive-game starting streak announced his retirement -- but what's the hurry? He won't turn 42 until Dec. 30. Not that big a hurry; Marshall will start the last two games of his 19th year as a Viking.

Drew Pearson of the Cowboys is "questionable" for Saturday's Dallas-at-Philadelphia biggie, and you suppose we'll ever see Danny Duggs or any Redskin slam-dunk in touchdown celebration again? Pearson is still hurting from the twisted knee he suffered in landing from a balletic leap in ecstasy over one of his three TD catches against the Giants. Who said Tom Landry took all the Hollywood out of his troops? . . .

The glory days of Green Bay are indeed gone, from retired Herb Adderley yet. Just burglarized from the former ace DB's home in Packertown: five diamond rings, including Adderley's from the 1961, '65 and '68 NFL championships -- and from Super Bowl of January '72, when Herb was a Cowboy . . .

Glory day in Washington Friday, 7:30 p.m., Capital Hilton, and the Pigskin Club never ceases to amaze with the lineup of Stars it attracts to its annual black-tie banquet. Listed are Heisman winners Charles White and Billy Sims, Heisman contender Vagas Ferguson, Commissioner Pete Rozelle, USC Coach Johnny Robinson, Redskin all-timers Kilmer, Jefferson, Hanburger, McLinton, Mitchell, Brown and G. Allen -- George, not Gerry, and just on and on. To receive the Pigskinners' high school football coach of year award: Roosevelt's Jim Tillerson. The Lenny Ford Trophy: Eastern's latest great gridiron Chesley, John. . .

Maybe some budding Sugar Rays in there Thursday, 8 p.m. at Hillcrest Heights Boys Club, 4104 23rd Pkwy., as Hillcrest Heights meets baltimore city youngsters in an all-star amateur box-out. Donations of $4 (under 12s, $2) would help the H.H. club keep punchin'. . .

Forty-three N.C. State football squadders petitioned this week for promotion of assistant Chuck Amato to LSU-bound Bo Rein's head-coaching post. But speculation on the Wolfpack job centers on Pat Dye, who quit at East Carolina last week, and Jim Donnan, Kansas State offensive coordinator. Dye could be serious, for he was interviewed in Raleigh Monday night and meanwhile has apologized to the ECU administration for knocking some of its officials since his resignation.

Jay Venuto, the quarterback leading the Demon Deacons to the Tangerine Bowl, has been elected ACC football player of the year. Venuto's high-powered passing won him 73 of 121 votes cast by the conference sportwriters: N.C. State center Jim Ritcher runner-up with 28. Venuto, first ACC p. of y. from Wake Forest since Brian Piccolo, 1964, will be back in 1980 . . .

Another Clemente in the Pittsburgh Pirate family. The late Roberto's second cousin, southpaw pitcher Enrique, 17, just signed by the organization . . .