An indexing slot is located on back of tensioner. You must buy the whole belt tensioner assembly.
Serpentine Tensioner Pulley Bolt Stripped E39 1996 2004
Tensioner pulley bolt reverse thread. And doing this to a standard thread bolt cause it to potentially loosen the bolt. The tensioner itself is fine. Just need to replace the pulley. To prevent the bolt from loosening it is a reverse thread. The belt tensioner pulley bolt tightens when you release tension on the belt. The pulley bolt on the tensioner is left hand thread turn clockwise to loosen but the bolt that retains the tensioner to the alternator bracket is standard right hand thread turn counter clockwise to loosen.
If you are trying to remove the tensioner from the bracket it just takes a little muscle. Is the reason that the the pulley is reverse thread because you have to use the pulley bolt to release tension on the belt. But you dont know if its the idler pulley that has bad bearing so you can just replacing the whole auto tensioner assembly which is easier and you should be able to get that quicker from any local auto shop. Align this slot to the head of the bolt on the front cover. I just replaced the tensioner pulleyfor 2nd time and have just about stripped the bolt. I have searched but havent come up with an exact part number.
I have a 92 c1500 with a 43l. It is a 14mm bolt but beyond that have no clue. Which requires you to turn the bolt counter clockwise. My older pre runner had 27 had a separate spot on the tensioner you used. Tighten bolt to 61 nm 45 ft. I need to replace the tensioner pulley.
However the tensioner mounting bolt is rh thread gm 10273568. It has no gm part number and cannot be replaced. Install pulley and pulley bolt to tensioner. Does anybody here know what the actual part number is or where i can get another. Im wanting to know if the bolt holding it to the tensioner is reverse threaded. It makes sense that it is reverse threaded because it requires you to push forward to release tension.
Gallery of Tensioner Pulley Bolt Reverse Thread
