The trial of an Auckland rugby coach facing dozens of allegations of sex crimes against young boys has been pushed back as more possible complainants come forward.

Alosio Taimo pleaded not guilty to 53 charges of sexual offending against children under 12 and teenage boys when he appeared in the High Court at Auckland in April.

While Taimo was expected to stand trial in February next year, Justice Simon Moore on Wednesday said further possible complainants had come forward and another hearing would be needed to work out the extent of the Crown case.

A new trial date was set for April and Taimo will appear again in July.