Alternator / Poly V Belt Problem

nicholsonj2252 · Post by **nicholsonj2252** » Fri Nov 08, 2013 9:13 pm

Hi , after some advice . I have just bought a 2000 non ABS R1100S and have just completed a full service on it without problems apart from the poly v belt . The bike has 30,0000 miles on it so I decided I might as well change the belt whilst I was on . I removed the cover and then loosened the three fixings but the belt did not slacken off at all and I could not get the alternator to budge . After 30 minutes of trying I torqued the bolts back up and after checking carefully that the belt looked in OK condition I replaced the cover . Anyone came across this problem or got any suggestions ? The bike had stood for quite a while with little use in the last 12 months . Everything else was fine other than I had to fully overhaul the brakes (which I knew before I bought it and got the price down from £2400 to £1900). Cheers , John

nicholsonj2252 · Post by **nicholsonj2252** » Fri Nov 08, 2013 10:13 pm

BMbler wrote:... fairings, tank off! you'll be able to access all as never before!

I had all of the fairing and the tank removed

nicholsonj2252 · Post by **nicholsonj2252** » Fri Nov 08, 2013 10:28 pm

BMbler wrote:Herm... and by releasing alternator fitting and adjusting nuts, you should have had it moving sideways to release the belt...

Exactly - but it would not move at all after releasing the fitting and adjusting nuts

slparry · Post by **slparry** » Fri Nov 08, 2013 10:29 pm

sounds like a bigger hammer's needed

nicholsonj2252 · Post by **nicholsonj2252** » Fri Nov 08, 2013 10:31 pm

slparry wrote:sounds like a bigger hammer's needed

Bruno · Post by **Bruno** » Wed Nov 13, 2013 4:15 pm

The seemingly brutal method I used to replace my belt was recommended to by sombody on here; I just can't remember who.

1) Cut old belt to remove.
2) Fit new belt over alternator pulley.
3) Feed belt towards crank pulley.
4) Use socket to turn pulley, dragging belt into V-groove.

Assuming tension was OK before, there's no need to adjust.

I was sceptical. It seemed very crude, but it worked. 20,000 miles later and the belt is still looking good and the tension's ok.

I was actually replacing a shredded belt at the side of the road on the then new-to-me bike. It had broken on the motorway, and the first I knew of it was when I came to apply the brakes on the off ramp. The battery was flat, the engine stalled and I charged towards the roundabout with only residual braking from the servo system.

Mark

Steptoe · Post by **Steptoe** » Wed Nov 20, 2013 12:40 pm

nicholsonj2252 wrote:
Exactly - but it would not move at all after releasing the fitting and adjusting nuts

A tip.

After loosening the three securing nuts squeeze the two sides of the alternator belt together and the alternator should drop down.