Sorry I took to long to reply, but here please help;
Minecraft Version: 1.6.4
Forge Version: 9.11.1.965
Mekanism Version: 6.0.5.46
Mods installed: ReisMinimap v3.4.01,Flesh to Leather v1.0.0_R1, Applied Energistic-rv14-finale3-mc16x, ChickenChunks 1.3.3.4, CodeChickenCore 0.9.0.9, CoFHCore-2.0.0.5, EnderStorage 1.4.3.6, Inventory Tweaks-1.6.2-1.56-b77, (Mekanism-6.0.5.46), MineFactoryReloaded-2.7.9-final, Morph-Beta-0.6.0, neiaddons-mc164-1.10.4.64, NEIPlugins-1.1.0.6, NotEnoughItems 1.6.1.9, PowerCrystalsCore-1.1.8-9, RedstoneArsenal 1.0.0.0, TConstruct_mc164_1.5.5.4, Thaumcraft 4.1.0g, Thaumic Tinkerer 2.3-140, ThermalExpansion 3.0.0.7, Translocator 1.1.0.15.

Try removing all mods and just keeping Mekanism installed. Closing until then.