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Not that what Solar Mike is saying is wrong, but to add to his post ... There's three problems with what you're suggesting: Some companies DO put the walk blocker on the camshaft pulley. Look at the Honda J35 V6 (goes for the other J3x series v6 engines as well) for instance: The rear cam has the walk blocker on it. This isn't a one off either. More than ...


Because it can, or does, make fitting belts more difficult. A walk blocker won't affect tension. And belts only tend to come off the pulleys for two reasons (imhe) a bearing has failed and the pulley sits at an angle or the belt is delaminating.

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