c**ting, f**king alternator belt

[roddy]

Simples there are 3 x 13 mm nuts / bolts

Slacken them drop the alternator down and remove belt

Earlier 1100's will need to undo the oil pipe to change the belt

Fit new belt Use an M8 Wee doofer that I made on the left lower bolt and rotate the tool

The alternator now lifts up and Belt can be tensioned!

Tighten two other nuts Remove tool and tighten that nut

Check Belt Tension and Replace front cover!

Sorted

.........

yep know how to do it, not what was asked ,since it's been done and it was on a superior R1150GSA anyway not one of those rattly 1100

..........
Steppers may disagree but 610 PK4 belt does the bikes okay and Lets face it a hell of a lot cheaper than a BMW one! So ya can change it more often for practice

so is there still enough adjustment on a R1150GSA to tighten this longer belt correctly even after an initial stretch ?

 

[Carl]

so is there still enough adjustment on a R1150GSA to tighten this longer belt correctly even after an initial stretch ?

Initial stretch... do they all do that?

I put a 610 belt on my GSA (it was all I had at the time, it was a smaller belt that came off) I've not had to adjust it since... in about apx 15k miles

 

[Steptoe]

Initial stretch... do they all do that?

Nope. If fitted correctly no adjustment needed.

 

[chad]

yep know how to do it, not what was asked ,since it's been done and it was on a superior R1150GSA anyway not one of those rattly 1100



so is there still enough adjustment on a R1150GSA to tighten this longer belt correctly even after an initial stretch ?

from my experience yes , the shorter belt was feckin tight with no adjustment, the longer belt was perfect

im not sure of the part numbers of the belts etc but im sure steppers will elaborate

 

[Steptoe]

from my experience yes , the shorter belt was feckin tight with no adjustment, the longer belt was perfect

im not sure of the part numbers of the belts etc but im sure steppers will elaborate

The shorter belt came in with the servo brakes. The later servo alternator has a resin type of balance wheel in front of the top/alternator pulley.

And as has been mentioned, using the shorter belt means the alternator is lower and closer to the engine which can mean the larger 32 litre fuel tank link pipe will not pull through due to the Q/D connctor being too large for the gap available.
Which can mean a simple tank removal turns into a fecking drama at the side of the road.

 

[chad]

The shorter belt came in with the servo brakes. The later servo alternator has a resin type of balance wheel in front of the top/alternator pulley.

And as has been mentioned, using the shorter belt means the alternator is lower and closer to the engine which can mean the larger 32 litre fuel tank link pipe will not pull through due to the Q/D connctor being too large for the gap available.
Which can mean a simple tank removal turns into a fecking drama at the side of the road.

perfect clarification cheers dude

 

[roddy]

Initial stretch... do they all do that?....

Nope. If fitted correctly no adjustment needed.

I was basing my stretch comment on experience that most belts have an intial stretch then settle down to there working length and that the old belt which was stamped as a 594 and was longer than the new 595 fitted ? happy to be wrong on that point

The shorter belt came in with the servo brakes. .......
And as has been mentioned, using the shorter belt means the alternator is lower and closer to the engine which can mean the larger 32 litre fuel tank link pipe will not pull through due to the Q/D connctor being too large for the gap available.
Which can mean a simple tank removal turns into a fecking drama at the side of the road.

right starting to get this together, so fitting the correct short belt (servo braked R1150GSA), I'm not about to **** up my hall sensors or do other damage ? but it makes the alternator sit too low to pull the balance pipe through when removing the tank, so better off to fit the longer belt so you have the room for the balance pipe fitting and you will still have enough adjustment in the mechanism to correctly tension the belt.

Is that the long and short of it ? if you pardon the pun

 

[chad]

I was basing my stretch comment on experience that most belts have an intial stretch then settle down to there working length and that the old belt which was stamped as a 594 and was longer than the new 595 fitted ? happy to be wrong on that point



right starting to get this together, so fitting the correct short belt (servo braked R1150GSA), I'm not about to **** up my hall sensors or do other damage ? but it makes the alternator sit too low to pull the balance pipe through when removing the tank, so better off to fit the longer belt so you have the room for the balance pipe fitting and you will still have enough adjustment in the mechanism to correctly tension the belt.

Is that the long and short of it ? if you pardon the pun

if its really tight allowing no adjustment and a struggle to get on then dont fit it, if it pops on easily then go for it

 

[Steptoe]

so better off to fit the longer belt so you have the room for the balance pipe fitting and you will still have enough adjustment in the mechanism to correctly tension the belt.

Is that the long and short of it ? if you pardon the pun

Or if you've the shorter belt fit a Q/D each side of the balance pipe so you don't have to pull it through at all.

 

[roddy]

Or if you've the shorter belt fit a Q/D each side of the balance pipe so you don't have to pull it through at all.

good idea but.......

except I have enough touble with the quick connectors as it is, so an extra one is just extra to break

 

[chad]

good idea but.......

except I have enough touble with the quick connectors as it is, so an extra one is just extra to break

the male part of the new ones is metal so you can really go to town on it

 

[roddy]

Oh thats handy to know, I did look for metal ones that last time I broke one but didn't find anything.

 

[chad]

Oh thats handy to know, I did look for metal ones that last time I broke one but didn't find anything.

i picked one up from a main dealer feckin spitefull price though

 

[sockpuppet]

The shorter belt came in with the servo brakes. The later servo alternator has a resin type of balance wheel in front of the top/alternator pulley.

Resin balance wheel my arse. We all know its just a plastic cover and its only purpose in life is to **** you off when changing the belt.

 

[Steptoe]

Resin balance wheel my arse. We all know its just a plastic cover and its only purpose in life is to **** you off when changing the belt.

It could be a form of damper ??

 

[DrFarkoff]

yep know how to do it, not what was asked ,since it's been done and it was on a superior R1150GSA anyway not one of those rattly 1100

Works on them all (just mentioned 1100 oil pipe for reference ) until they bult those pile of schite 1200's where you HAVE to stretch the belt on and off

so is there still enough adjustment on a R1150GSA to tighten this longer belt correctly even after an initial stretch ?

The alternator will move about 25 - 30 mm vertically So I should bloody well hope so OR you have a problem somewhere!

 

[roddy]

Right folks, I thought I'd post this up, more for future reference than anything else
Bike: R1150GSA servo brakes 04 plate



The above photo is with the correct 595 belt fitted, it's not clear in the pic but the alternator is sitting on top of the engine, and the belt is a bit over tensioned, when I took this belt off I checked for any movement on the lower pulley, as it was suggested earlier it could have caused premature Hall sensor failure, I couldn't detect any movement, so happy the belt wasn't going to cause this, but as Neil says you can't get the quick fit fuel conector through the gap, so makes removing the tank more hassle than it's worth



This photo shoes the alternator in it's highest position and shows theres about a 25mm gap between alternator and engine now.

Now my mechanical sympathy gland was doing flips with the tightness of the correct belt (595) so I went to the local car factors and picked up a 613 belt and fitted this, as mentioned previously, the 611 belt will fit but the factors didn't have one so 613 it was
This went on with easily and once correctly tensioned as per manual, you use about 16mm of the 25mm range to correctly tension the belt, which leaves enough to take up any slack if the belt does stretch a bit, and also gives you enough space to get the quick fit connector through the gap when you need to remove the tank, so result all round.

So I suggest to anyone doing this fit the bigger belt, you know it makes sense

It does beggar the question why BMW changed the spec of the belt as I can't see any advantage in fitting the smaller belt unless it was a resource issue for BMW to try and reduce there varied stock ?

 

[twizzle]

what a feckin palaver..... my approach phone steptoe book it in ride off on his bike go back later pay him job done!!!!

 

[roddy]

I'd rather do the work myself, so when it fecks up on the road I may have a fighting chance to fix it

 

[MattW]

what a feckin palaver..... my approach phone steptoe book it in ride off on his bike go back later pay him job done!!!!

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