Top pair with strange turn raise

[mce86]

Full Tilt Poker - No Limit Hold'em Cash Game - $1/$2 Blinds - 8 Players - (LegoPoker HH Converter)

SB: $326.05
BB: $204.85
UTG: $292.60
Hero (UTG+1): $239.65
MP1: $200.70
MP2: $207.10
CO: $298.30
BTN: $185.30

Preflop: Hero is dealt A[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/diamond.gif[/img] (8 Players)
UTG folds, Hero calls $2.00, 3 folds, BTN calls $2.00, SB folds, BB checks

Flop: ($7) 4[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/club.gif[/img] (3 Players)
BB checks, <font color="red">Hero bets $5.00</font>, BTN calls $5.00, BB folds

Turn: ($17) 4[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $8.00</font>, <font color="red">BTN raises to $18.00</font>, Hero calls $10.00

River: ($53) K[img]/images/graemlins/heart.gif[/img] (2 Players)
Hero checks, <font color="red">BTN bets $16.00</font>

Pot Size: $69.00


Villian was 14/1.67 after 60 hands. Couldnt put him on a 4 with those stats, so the turn raise confused me a bit. Advice on any street