Rule
60 F.R.Civ.P. applies in cases under the Code except that (1) a motion to reopen a case under the Code or for the reconsideration of an order allowing or disallowing a claim against the estate entered without a contest is not subject to the one year limitation prescribed in Rule
60
(c), (2) a complaint to revoke a discharge in a chapter 7 liquidation case may be filed only within the time allowed by § 727(e) of the Code, and (3) a complaint to revoke an order confirming a plan may be filed only within the time allowed by § 1144, § 1230, or § 1330.