* TSX rises 87.95 points, or 0.69 percent, to 12,762.30 * All of the 10 main index sectors advance * Index posts weekly gain * Suncor has biggest positive influence on market * Maple Leaf Foods jumps after move to sell biodiesel unit By John Tilak TORONTO, Aug 23 (Reuters) - Canada's main stock index touched a one-week high on Friday as sluggish U.S. economic data renewed hopes that the U.S. Federal Reserve might delay winding down its stimulus program, lifting bullion prices and shares of gold miners. The rise on the benchmark Toronto index outpaced that on the S&P 500 as the index maintained its lead over its U.S. counterpart in August to date. After a wave of positive global data cheered investors earlier this week, figures released on Friday showed sales of new single-family homes in the United States slumped in July to their lowest level in nine months. That spurred the market to bet that a Fed stimulus pullback might come later and not sooner, pushing oil prices higher and bullion to jump 1.6 percent to hit its highest level in more than two months. "There is a reappraisal about whether the Fed will proceed with the September taper," said Fergal Smith, managing market strategist at Action Economics. "That's proved to be quite supportive for commodities." However, he cautioned that "the change in Fed policy and the impact on the market is a big unknown," and "carries a risk for commodities markets". The Toronto Stock Exchange's S&P/TSX composite index closed up 87.95 points, or 0.69 percent, at 12,762.30, after rising as high as 12,776.14, its highest level since Aug. 16. It also ended the week higher. All of the 10 main sectors on the index advanced. Financials, the index's most heavily weighted sector, rose 0.6 percent. Royal Bank of Canada climbed 1 percent to C$65.12, and Toronto-Dominion Bank added 1 percent C$88.81. Energy shares were up 0.7 percent. Suncor Energy Inc jumped 1.9 percent to C$36.06 and had the biggest positive influence on the index for a second straight day. The materials sector, which includes mining stocks, gained 1.6 percent, with gold producers climbing 2.6 percent. Goldcorp Inc rose 1.9 percent to C$32.60, and Barrick Gold Corp advanced 2.6 percent to C$21.11. In company news, Maple Leaf Foods said it will sell its rendering and biodiesel business to Darling International Inc for about C$645 million ($613.6 million) in cash. Maple Leaf shares soared 7.8 percent to C$14.44.