The timing belt tensioner small bearing hole is too long, the idler pulley bolt only goes 1/4 inch over the standard, about half an inch. 1/4 bolt thread is not enough for a high load engine like EJ205, EJ255 or EJ257. When the bolt engages and the engine is ready. I do not recommend buying this kit, otherwise you will have to buy another tensioner to replace the one that comes with the kit. By the way, I end up having to buy a KOYO tensioner to replace what came in the kit. hmm