serpentine belt tensioner replace on 93 SC400
 

I need help on replacing my serpentine belt tensioner asap pics if possible. What needs to be removed to get it off and any tips on this will be appreciated.

Thanks

For my 92 sc400(probably the same):

Loosen the drive belt tension by turning the drive belt tensioner counterclockwise, and remove the drive belt.

NOTE - The pulley bolt for the belt tensioner has a LEFT-hand thread

Hope this helps,

Alan

That's exactly right. No trickery here - just the reverse thread. Very simple.

here u go.... I know most times pictures help a lot.

Thanks, everyones help is appreciated. I know how to remove the serpentine belt, its the tensioner assembly that i need help with removing and replacing.

Thanks again

Only 2 bolts...

12ft-lbs only when you install it back.

Thanks again.
Larry

Got this done today, as it turns out u have to remove the left side upper and lower timing belt cover and the alternator . The reason the alternator has to be removed is the two lower bolts mount behind the alternator.

Thanks guys

http://i393.photobucket.com/albums/p...otwin/tn-1.jpg

I am wondering which brand of Acc. Belt tensioner is the best?
I found Hayden and Gates...
Well OEM would be the best but probably expensive...:((
I know Dayco had issues when installing...any suggestions?

Thanks

Steve

Bringing this back from the grave, my belt started slipping and my tensioner squeaks like a rat, but only after it rains, and it stops when it warms up. I've been seeing people posting prices of $50 for the gates but the cheapest i found was 130?? Where is everyone finding these prices or do they not exist anymore since most of the replies are from 7 or 8 years ago?

Warning: I couldn't find serpentine belt removal steps in the factory service manual, so I followed the info here for a '95 SC400. Posts #2 and #4 say to loosen the tensioner by turning the 14mm bolt counter-clockwise for a left-hand thread. I should have given the last part more thought... Right-hand threaded is the normal type, for which counter-clockwise loosens. So, counter-clockwise for left-hand threaded is tightening, not loosening.

End result, I muscled the bolt a bit too much and snapped it off... Not a big deal, being a parts car at this point. The head of the bolt had enough thread attached to it still to confirm that it's definitely left-hand threaded. I have no idea what the above posts are referencing that hasn't tripped other people up over the years.

I think I figured out the source of confusion. You're only supposed to pivot the tensioner counter-clockwise to release belt tension, rather than actually removing the pulley. The factory hint that the bolt is left-hand threaded is very misleading in that respect, as that information is only pertinent when you actually want to remove it. Sure, it has to be left-hand threaded to not unscrew when pivoting counter-clockwise, but that's of no concern if they had just separated out those steps.

It's covered in section EG-13 (Engine Tune-up), pg 1389, in my copy of the FSM. Same info as posted above.