New loom help

Mike101 · 1 New loom help Sun Mar 09, 2014 3:45 pm

Mike101

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Number of posts : 97

I finally managed to fit my new loom to my 87 k100lt today.

All went well and she spun up fine. Everything worked as before and I was chuffed.

But now a couple of hours later I have a fault.

The bike starts fine.

But if I turn on any lights etc or rev it the coolant light comes on and the fan starts up.

Any ideas folks please.

Mike

charlie99 · 2 Re: New loom help Sun Mar 09, 2014 4:17 pm

charlie99

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just a feeling without chasing it through ,,,sounds like there is something linked at the charge indicator and temp warning lamp ..(located close to each other in the gauges )
could it be the instruments connector ...or perhaps a bad globe inside the instruments ??? or flexible board stuff ?

Mike101 · 3 Re: New loom help Sun Mar 09, 2014 4:43 pm

Mike101

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Number of posts : 97

I think I've got a plug wrong somewhere but don't know where.

But why did it work and then not.

Mike

Inge K. · 4 Re: New loom help Sun Mar 09, 2014 4:54 pm

Inge K.

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A second alternative: bad ground connection at heat management relay, and/or bad ground connection between frame and engine.

Try to establish some temporary ground connections relay/frame/engine to verify.

92KK 84WW Olaf · 5 Re: New loom help Sun Mar 09, 2014 5:12 pm

92KK 84WW Olaf

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I was thinking earth/grounds too.

If you turn on lights and the coolant light also comes on something not right.

Is it possible the problem is in the coolant circuit. Temp sensor for coolant light and temp sensor for fan and their earths mixed up in some way?

Inge K. · 6 Re: New loom help Sun Mar 09, 2014 5:17 pm

Inge K.

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92KK K100LT 193214 wrote:Temp sensor for coolant light and temp sensor for fan and their earths mixed up in some way?

It's the same sensor (and ground connection).

Mike101 · 7 Re: New loom help Sun Mar 09, 2014 5:53 pm

Mike101

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Number of posts : 97

I'll check the ground tomorrow night.

When the bike starts up it's all fine. But when revved up the coolant light and fan comes on and also when any light or load is put onto the electrical circuit.

Any more ideas are welcome. It's a pain because I spent all day putting the plastics back on.

Oh well.

Mike

92KK 84WW Olaf · 8 Re: New loom help Sun Mar 09, 2014 7:41 pm

92KK 84WW Olaf

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Is every light working, neutral etc?

Rick G · 9 Re: New loom help Sun Mar 09, 2014 8:40 pm

Rick G

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It certainly sounds to me like an earth problem associated with the charge indicator and temp circuit.
When you increase the revs you increase the charge/voltage and the same when you turn on a light the alt works harder.
I shall have a study of the circuit and try to figure it out.

Mike101 · 10 Re: New loom help Mon Mar 10, 2014 3:13 am

Mike101

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Number of posts : 97

92KK K100LT 193214 wrote:Is every light working, neutral etc?

I have two lights not working.

The first is the front side light. The second is the fog lamp.

Apart from that everything else is working perfectly.

Mike

MikeP · 11 Re: New loom help Mon Mar 10, 2014 5:28 am

MikeP

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Mike101 wrote:
I have two lights not working.

The first is the front side light. The second is the fog lamp.

Apart from that everything else is working perfectly.

Mike

I'd suggest that the two are linked.

The fog light isn't a BMW fitting and is probably wired via the "side light" (for non-UK members, that's the 4W "parking" or "position" lamp in the headlamp).

Mike101 · 12 Re: New loom help Mon Mar 10, 2014 6:42 am

Mike101

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An update gents.

I went out to the bike this morning and fired her up before i got on my other bike to go to work.

No coolant light came on and no fan either.

I wonder if this is linked to a temp sensor..maybe when it's stone cold everything is fine but as soon as their is some heat in the engine the fault happens?

Mike

92KK 84WW Olaf · 13 Re: New loom help Mon Mar 10, 2014 7:25 am

92KK 84WW Olaf

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Mike101 wrote:An update gents.

I went out to the bike this morning and fired her up before i got on my other bike to go to work.

No coolant light came on and no fan either.

I wonder if this is linked to a temp sensor..maybe when it's stone cold everything is fine but as soon as their is some heat in the engine the fault happens?

Mike

Someone else might correct me on this but I think there are two different sensor wires, one for fan and one for coolant light. Is it possible there is a mix up here? The fan will I think come on before the coolant light if all is normal. The coolant light only comes on when temperatures are exceeded. If both come on at the same time I would also check earthing. You mentioned possibly check the sensors too. Do you have a temp gauge?

Mike101 · 14 Re: New loom help Mon Mar 10, 2014 7:39 am

Mike101

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Number of posts : 97

Everything here is pointing towards an earthing problem.

I know of only 2 earthing points...one by the starter motor and the other under the tank on the right hand side...is there another?

I don't remember making the earth under the tank tight so thats what this is pointing towards.

I might be able to get it apart tonight and have a look....i hope it's that simple.

Mike

Inge K. · 15 Re: New loom help Mon Mar 10, 2014 8:19 am

Inge K.

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A third ground point (frame/engine) is the frame lug above the alternator (according to BMW).
Another metod would be to connect a wire between the point under the tank and the negative side of the battery, and beef up the one between the battery and the gearbox.

A easy way to check if the heat management relay have a ground problem is to connect a temporary wire from battery negative to the brown wire at the round white connector (factory alarm) in the relay box......this wire is connected very close to the heat m. relay
(I then assuming that the relay socket have a good connection).

charlie99 · 16 Re: New loom help Mon Mar 10, 2014 2:00 pm

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hmmm
shouldn't there be an earthing cable attached to the 4mm bolts at the right hand switch assembly- master cylinder ????

Mike101 · 17 Re: New loom help Mon Mar 10, 2014 4:35 pm

Mike101

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Number of posts : 97

charlie99 wrote:hmmm
shouldn't there be an earthing cable attached to the 4mm bolts at the right hand switch assembly- master cylinder ????

If there is I didn't take it apart when I changed the loom.

I'm off into the cold in a mo to attack the thing.

Mike

Mike101 · 18 Re: New loom help Mon Mar 10, 2014 7:26 pm

Mike101

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Number of posts : 97

So there's good news and good news.

I can now get from a complete bike to tank off in ten mins.

Thanks to you all I found a nice big fat earth wire all on its own.

Sidelight is a loose connection with some really bad DIY wiring. Fog lamps was a rusty connector.

So it all works..just need to do the radiator cover then test ride her.

Job well done......thanks again gents as your help led me straight to the fault.

Mike

92KK 84WW Olaf · 19 Re: New loom help Mon Mar 10, 2014 8:14 pm

92KK 84WW Olaf

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I can now get from a complete bike to tank off in ten mins.

Glad its sorted.....now I wonder how fast can one get the tank off a K? As in RT/LT. I must let you in on a secret, I modified my LT so I could get under it without any unscrewing, just unplug the electrics and I have access to the electrics. Its really worth it, all you have to do is use longer fuel lines.

charlie99 · 20 Re: New loom help Tue Mar 11, 2014 5:07 am

charlie99

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good find mike ....ride well !

92KK 84WW Olaf · 21 Re: New loom help Tue Mar 11, 2014 7:17 am

92KK 84WW Olaf

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Mike101 wrote:So there's good news and good news.

I can now get from a complete bike to tank off in ten mins.

Thanks to you all I found a nice big fat earth wire all on its own.

Sidelight is a loose connection with some really bad DIY wiring. Fog lamps was a rusty connector.

So it all works..just need to do the radiator cover then test ride her.

Job well done......thanks again gents as your help led me straight to the fault.

Mike

Beer for everyone..... New loom help 502531

Enjoy it now, nicely sorted for the sunshine that's come at last.

Mike101 · 22 Re: New loom help Tue Mar 11, 2014 7:41 am

Mike101

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Number of posts : 97

Yes the sun is on the way. But i bought the K to use as a communter in the winter. I wanted to save my other bike from the ravages of the winter..but alas it hasn't worked out like that.

My trusty Tenere has been through it all al it really loks like it. Now with the K running i can strip the Tenere and clean it properley...at last.

I don't know how a K would stand up to the winter we have had but my Tenere now has 3 warped discs...not good.

But for this year i've got big plans for my K..lots of travel me thinks.

Mike

charlie99 · 23 Re: New loom help Tue Mar 11, 2014 7:55 am

charlie99

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it will mike ...but there are simple things to check first

like sealing up all the electrics ...after ...testing and cleaning

oops cleaning ...then testing

yeah !!!???

Mike101 · 24 Re: New loom help Tue Mar 11, 2014 8:59 am

Mike101

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Number of posts : 97

I'm going to ride her for a bit and make sure it all works then strip her to clean and seal everything nice and tight.

When i took the tank off i was amazed to see how much of the electrics are not sealed but they are well protected under the tank i guess.

I've already found things i want to replace in the nose fairing...some very bad DIY wiring and try to find out why the heated grips don't work.

But unlike a jap bike its all so easy to get to and work on.

Mike

charlie99 · 25 Re: New loom help Wed Mar 12, 2014 2:32 am

charlie99

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someone said ...mechano for big boys mike
pretty apt if you ask me

good luck mate ...ride well !

Mike101 · 26 Re: New loom help Wed Mar 12, 2014 6:16 am

Mike101

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Number of posts : 97

I must sya that the hrdest thign on the entire job was getting the plastics back on.

trying to get the radiator cover on with the side panels is bad enough but the bit up under the nose cone took me an hour of bending and swearing before it sort of magicly fell into place.

Mike

Waz · 27 Re: New loom help Wed Mar 12, 2014 6:40 am

Waz

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took me an hour of bending and swearing before it sort of magicly fell into place.

The swearing does the trick, I use the same technique for removing the paniers.

Mike101 · 28 Re: New loom help Wed Mar 12, 2014 8:25 am

Mike101

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Number of posts : 97

Waz wrote:took me an hour of bending and swearing before it sort of magicly fell into place.

The swearing does the trick, I use the same technique for removing the paniers.

Oh god don't get me started. Is it actually possible to remove the panniers in one simple easy movement or are they BMW's attempt at a new form of Rubiks cube.

Mike

duck · 29 Re: New loom help Wed Mar 12, 2014 9:08 am

duck

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Mike101 wrote:

Waz wrote:took me an hour of bending and swearing before it sort of magicly fell into place.

The swearing does the trick, I use the same technique for removing the paniers.

Oh god don't get me started. Is it actually possible to remove the panniers in one simple easy movement or are they BMW's attempt at a new form of Rubiks cube.

Mike

1 - Undo latch to "Z" rack.

2 - Swing out bottom.

3 - Slide backwards.

4 - Lift up and off.

Waz · 30 Re: New loom help Wed Mar 12, 2014 9:12 am

Waz

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Number of posts : 655

Mine must need adjusting, I have tried that and many other things then it just falls off in my hands and I can't do it again. Only thing I do the same every time is swear.

92KK 84WW Olaf · 31 Re: New loom help Wed Mar 12, 2014 9:33 am

92KK 84WW Olaf

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1 - Undo latch to "Z" rack. [works first time ok. Try getting the key in on a dark wet night]]

2 - Swing out bottom. [works first time ok]

3 - Slide backwards. [works first time??? Needs a lot of KY jelly or something.]

4 - Lift up and off. [works first time??? First complete step 3, now for step 4. Where is that tube of jelly?]

So simple...sometimes they work, sometimes they don't. If only

So simple I decided to buy a brand new set of Krauser K2 panniers [and frames] for the RT which has the BMW panniers. The LT already had them and they are so simple to get on and off by comparison. The K2 is 42 litre, doesn't let in water anywhere and the locking action is much more secure. Same seller has new pairs of the smaller ones too. Frames available direct from Krauser, €111 for the pair delivered.

http://www.ebay.co.uk/itm/NEW-KRAUSER-K2-Pair-of-42-litre-panniers-Krauser-panniers-42L-White-Red-/370595635150?pt=UK_Motorcycle_Parts&hash=item5649389fce

Rick G · 32 Re: New loom help Wed Mar 12, 2014 9:51 am

Rick G

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That's exactly why we both now have the old square Givi boxes and when you put them on they just go click and they are locked on and they hold heaps + ice.

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1 New loom help Sun Mar 09, 2014 3:45 pm

Mike101

2 Re: New loom help Sun Mar 09, 2014 4:17 pm

charlie99

3 Re: New loom help Sun Mar 09, 2014 4:43 pm

Mike101

4 Re: New loom help Sun Mar 09, 2014 4:54 pm

Inge K.

5 Re: New loom help Sun Mar 09, 2014 5:12 pm

92KK 84WW Olaf

6 Re: New loom help Sun Mar 09, 2014 5:17 pm

Inge K.

7 Re: New loom help Sun Mar 09, 2014 5:53 pm

Mike101

8 Re: New loom help Sun Mar 09, 2014 7:41 pm

92KK 84WW Olaf

9 Re: New loom help Sun Mar 09, 2014 8:40 pm

Rick G

10 Re: New loom help Mon Mar 10, 2014 3:13 am

Mike101

11 Re: New loom help Mon Mar 10, 2014 5:28 am

MikeP

12 Re: New loom help Mon Mar 10, 2014 6:42 am

Mike101

13 Re: New loom help Mon Mar 10, 2014 7:25 am

92KK 84WW Olaf

14 Re: New loom help Mon Mar 10, 2014 7:39 am

Mike101

15 Re: New loom help Mon Mar 10, 2014 8:19 am

Inge K.

16 Re: New loom help Mon Mar 10, 2014 2:00 pm

charlie99

17 Re: New loom help Mon Mar 10, 2014 4:35 pm

Mike101

18 Re: New loom help Mon Mar 10, 2014 7:26 pm

Mike101

19 Re: New loom help Mon Mar 10, 2014 8:14 pm

92KK 84WW Olaf

20 Re: New loom help Tue Mar 11, 2014 5:07 am

charlie99

21 Re: New loom help Tue Mar 11, 2014 7:17 am

92KK 84WW Olaf

22 Re: New loom help Tue Mar 11, 2014 7:41 am

Mike101

23 Re: New loom help Tue Mar 11, 2014 7:55 am

charlie99

24 Re: New loom help Tue Mar 11, 2014 8:59 am

Mike101

25 Re: New loom help Wed Mar 12, 2014 2:32 am

charlie99

26 Re: New loom help Wed Mar 12, 2014 6:16 am

Mike101

27 Re: New loom help Wed Mar 12, 2014 6:40 am

Waz

28 Re: New loom help Wed Mar 12, 2014 8:25 am

Mike101

29 Re: New loom help Wed Mar 12, 2014 9:08 am

duck

30 Re: New loom help Wed Mar 12, 2014 9:12 am

Waz

31 Re: New loom help Wed Mar 12, 2014 9:33 am

92KK 84WW Olaf

32 Re: New loom help Wed Mar 12, 2014 9:51 am

Rick G

33 Re: New loom help

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