kenk Posted March 12, 2005 Report Share Posted March 12, 2005 Searched the archives, and looking through the haynes manual i dont see any directions or tips for replacing the serp belt tensioner/idler pulley. Haynes just covers installing a new belt and not a tensioner. I know there are two bolts on the tensioner, do i just remove these and then the whole thing comes off?Also what do i need to torque it back to when i put it on the car? Dont want that sucker coming loose on the road, but dont want to shear off anything either.thanks-ken Link to comment Share on other sites More sharing options...
850boston Posted March 12, 2005 Report Share Posted March 12, 2005 You will need a 3/4" drive tool to release the tension on the belt. I saw a picture once of 3 or 4 quarters in a needle nose vice grip plyers doing the job. FCP Groton has the tool for like $25 I thinkThen, you just remove the bolts holding the bracket,,With the bracket off you can remove the bolt holding the pulley.Hope this helps... Link to comment Share on other sites More sharing options...
Bay13 Posted March 12, 2005 Report Share Posted March 12, 2005 Don't remove the bolts that hold the tensioner with the serpentine belt still on the car. http://www.volvospeed.com/Repair/850_serp.pdfThe above will be handy for the routing. Link to comment Share on other sites More sharing options...
kenk Posted March 12, 2005 Author Report Share Posted March 12, 2005 sounds good. Yea ive had the belt off without the tool, last time i made an order i got the tool, it would have been worth $50. Any idea about the torque spec for the tensioner bracket, and pulley bolt? thanks. Link to comment Share on other sites More sharing options...
kenk Posted March 12, 2005 Author Report Share Posted March 12, 2005 blah, so got the part off only to find fcp groton sent me the wrong part. Their webpage is actually wrong fyi, "Tensioner Roller all 1993-1997 w/ MT and the following 1993 A/T models up to the following engine number 122376 w/ EGR and 121674 w/o EGR" well i have a manual tranny, and mines a 96, so that according to them is the part, but of course thats not it. Partly its my fault for not checking. So uh yea, now im stuck nobody has the right part in my area. Blah. I can hear a bearing rattle in the roller when i spin it, how bad would it be to put back on the car, is it likely to fail soon? I need to go up to MN for a flight on monday. I suppose i could drive my crappy honda, but thats got 260k on it. Blah. Link to comment Share on other sites More sharing options...
nedro018 Posted March 12, 2005 Report Share Posted March 12, 2005 In my experience, you can put the old tensioner back on. They make alot of noise when they're loose, but they dont fail suddenly. Since you're about to order another part, do yourself a favor and order the other pulley as well (idler one). Change them both.Ned Link to comment Share on other sites More sharing options...
kenk Posted March 13, 2005 Author Report Share Posted March 13, 2005 i ended up driving to kansas city to get the part, ended up getting the whole tensioner assembly, gonna put it on tomorrow. Im not sure what your referring to Ned though, is there another pulley im missing? Im looking at the tensioner and i only see one pulley though. -ken Link to comment Share on other sites More sharing options...
nedro018 Posted March 15, 2005 Report Share Posted March 15, 2005 The other pulley's in addition to the one on the tensioner. It's an idler pulley to the right of the tensioner as you're looking down from the top of the engine. If you didnt buy this one, it's no biggie, but it may go out later. Actually, this one was the defective bearing on my 850...I ended up buying the tensioner as well just to end the issue once/for all. Link to comment Share on other sites More sharing options...
Guest Guest_Mike_* Posted March 15, 2005 Report Share Posted March 15, 2005 You will need a 3/4" drive tool to release the tension on the belt. I saw a picture once of 3 or 4 quarters in a needle nose vice grip plyers doing the job. FCP Groton has the tool for like $25 I thinkThen, you just remove the bolts holding the bracket,,With the bracket off you can remove the bolt holding the pulley.Hope this helps...←My old one was scripted so the socket drive would slip causing problems for me. I resorted to using a strong allen key into the pinhold slot of the tensioner and using a large screwdriver for leverage on that allen key. Now i use this method when changing the belt since it takes only a minute even with the replaced tensioner.But as always keep your fingers clear using either method in case of slippage. Link to comment Share on other sites More sharing options...
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