ALLEN PARK — The experiment with Jon Jansen at left guard may be over, but Lions offensive coordinator Scott Linehan can not find enough good words for Jansen.

“He never played guard, he’s been a tackle his whole life. What he did, he went out there and gave us everything he possibly could and all that leadership and attitude you need to have. We’re trying to find a solution in that spot,’’ Linehan said. “I’ve got as much respect for him as anybody who’s ever played from a preparation and a passion for the game. What he’s doing for our team and our group is really positive.’’

 Linehan and coach Jim Schwartz would not say who will start at left guard on Sunday at Seattle.

 Jansen, who grew up in Clawson and played at the University of Michigan, was signed as a free agent in the offseason after spending his first 10 NFL seasons with the Washington Redskins.

Throughout training camp he had been practicing at right tackle with the second group. And Jansen’s message has been constant: He’s here to help the Lions win and will do anything asked of him.

 He graded his first stint at left guard as average.

 “There are some things I did well and there are some areas I really need to improve on,’’ Jansen said. “We looked at the film, pass blocking is one of the things I have to get more comfortable doing and keep moving forward.’’
— PAULA PASCHE