A total clearance of 135 had helped Carter race into a 3-0 lead and extended his streak of frames won to nine, the two-time Crucible runner-up having taken six in a row to beat Zhou Yuelong 13-9 on Monday.
However, Wilson stopped the rot with a break of 109 in the final frame before the mid-session interval and carried on where he left off after the break with contributions of 86, 134 and 55 to move 5-3 ahead.
— World Snooker (@WorldSnooker) April 30, 2019
Wilson, who had produced centuries in the last two frames to beat Barry Hawkins 13-11 in round two, somehow scrapped his way into a 4-3 lead before Gilbert, who had earlier made breaks of 68 and 60, saved the best until last with a 109 clearance to level at 4-4.
Both matches resume at 7pm on Tuesday before playing to a finish on Wednesday.