$22 bubble: QT Push over limper?

[KCW12]

PokerStars No-Limit Hold'em Tourney, Big Blind is t200 (4 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Hero (t4075)
BB (t1690)
UTG (t1840)
Button (t5895)

Preflop: Hero is SB with T[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/heart.gif[/img].
UTG calls t200, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to t4075</font>,

Limper is very loose passive, limping in almost 50% of his hands. I think he will tend to call lighter than most, but could easily be limping with garbage in the first place. BB is a tight player, seems decent.