I need to replace the serpentine belt tensioner on my '87 Astro. It's attached to a bracket with a single 18mm bolt--anyone know what this should be torqued at?
Astro serpentine belt tensioner
Jul 04, 2007
4 Replies
Serpentine belt should be spring loaded. No torque, just turn to release pressure and remove or replace the belt.
Oops! Misread. You're replacing the tensioner not the belt. If you mean the pulley where the bearing center is receiving all the torque I would go easy. Just snug, perhaps with a dab of Loctite.
I wouldnt go more than 20 ft lbs if the bracket is aluminum, Loctite 242 on the threads.
Whitelightning
I'm not sure there is a spec, though probably is. About 50 ft pounds should do it. Use a bit of grease or never seeze, in case you have to change it out again.
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