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Car Forum / BMW Cars / September 2006Belt tension 1994 740i
The main belt is very slack. I have adjusted the tension as far as it will go. does the alternater or the power stearing have adjustments on them. Time for a new belt. > The main belt is very slack. I have adjusted the tension as far as it will > go. does the alternater or the power stearing have adjustments on them. > The main belt is very slack. I have adjusted the tension as far as it will > go. does the alternater or the power stearing have adjustments on them. You can adjust the belt tension on M60 engine? >> The main belt is very slack. I have adjusted the tension as far as it >> will >> go. does the alternater or the power stearing have adjustments on them. > > You can adjust the belt tension on M60 engine? The fan belt. The cams run on chains! > >> The main belt is very slack. I have adjusted the tension as far as it > >> will [quoted text clipped - 3 lines] > > The fan belt. The cams run on chains! This I need to know. How? http://i21.photobucket.com/albums/b274/yaofengchen/BMW_95_540/DSC_2750.jpg I thought both tensioners are non-adjustable. > > The main belt is very slack. I have adjusted the tension as far as it will > > go. does the alternater or the power stearing have adjustments on them. > > You can adjust the belt tension on M60 engine? Badly. The a/c and main serpentine belts both have adjustors. In my opinion they are fragile (I managed to break the a/c belt adjustor very easily) and badly designed. Progress I suppose....... Give me the old method of moving the alternator bracket any day!  SignatureWho needs a life when you've got Unix? :-) Email: john@unixnerd.demon.co.uk, John G.Burns B.Eng, Bonny Scotland Web : http://www.unixnerd.demon.co.uk - The Ultimate BMW Homepage! Need Sun or HP Unix kit? http://www.unixnerd.demon.co.uk/unix.html www.Strathspey.co.uk - Quality Binoculars at a Sensible price > The main belt is very slack. I have adjusted the tension as far as it will > go. does the alternater or the power stearing have adjustments on them. Your belt has an automatic tensioner. Is that tensioner maxed out or just stuck? If it has reached its max extension then you need a new belt, but I have never seen a serpentine belt stretch that far. More likely, you belt tensioner has gone TU. Here is a diagram: http://www.realoem.com/bmw/showparts.do?model=GD43&mospid=47362&btnr=11_1238&hg= 11&fg=18 Item #11 is the tensioner for the main (alternator, water pump, power steering) belt. http://www.realoem.com/bmw/showparts.do?model=GD43&mospid=47362&btnr=11_1413&hg= 11&fg=18 Item #11 in this picture is the tensioner for the smaller AC belt. Signature-Fred W >> The main belt is very slack. I have adjusted the tension as far as it >> will go. does the alternater or the power stearing have adjustments on [quoted text clipped - 14 lines] > > Item #11 in this picture is the tensioner for the smaller AC belt. Something I just thought of... In both cases there are little adjusters to allow you to remove and install the belts. Perhaps the bolt for that has jusy come loose? The bolts in question are marked items 9&10 on both diagrams. Signature-Fred W
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