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Showing results for tags 'timing belt idler pulley sprocket tensioner water pump'.
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Of course, we all know we're supposed to do periodic timing kits, but we also know that procrastination runs high. Last summer (about a km from home - could have been a lot worse) I suffered my first timing failure on a '99 EJ25D. We were just starting out on a trip down to Montana/Idaho for camping, sailing, and the eclipse. When I did the post-mortem, I found it was the idler sprocket that had seized, shattering the right-side sprockets and cover. So I'm curious what the dominant failure cause is, or what the proportions of failures are across the idler pulleys, idler sprocket, water pump, tensioner, and the belt itself. A straw poll would be welcome.