Please respond if you've NOT had a 1200GS/GSA fuel pump controller failure

What cock don't get insecure if your reasoning is questioned - if you want to question to gather information, you can't ignore the other side of the question just because it doesn't suit your agenda. Think of how the other side will interpret any findings.

Good on Tim for trying to do doing something about it.
.

Paragraph one.... correct

Paragraph two..... correct
 
Tony Purdie
04 GS - owned from Feb 05 til Feb 08
Ridden in all weathers - 8k miles (I think)
Garaged
No fuel pump issues


07 GSA - owned from Dec 07
Ridden in all weathers - 8k miles
Garaged
No fuel pump issues
 
2004 GS
25000 miles
Ridden in all weathers

no fuel pump failure yet - but I did tape up the slots quite a while back to stop water getting in after reading early threads about corrosion around the controller.
 
2004 GS
25000 miles
Ridden in all weathers

no fuel pump failure yet - but I did tape up the slots quite a while back to stop water getting in after reading early threads about corrosion around the controller.

Perhaps not the wisest route if the real problem is overheating?

The corrosion is on the outside of the unit, non apparently inside. The lower plugs (of failed units) that I have seen have all been virginal....
 
Yup...............BMW - that's an old recall; just look at the date. All bikes would have been done. Not the same problem as the Fuel Pump Controller failures.

Ah - my appologies, the description sounds very similar to the issue being discussed here.
 
Perhaps not the wisest route if the real problem is overheating?

The corrosion is on the outside of the unit, non apparently inside. The lower plugs (of failed units) that I have seen have all been virginal....

Yes, I did wonder if the unit would then overheat - but then reasoned that the slots are not going to provide much in the way of ventilation. All I can say is that its still working, and I think I taped it up about 2 years ago. Haven't yet ridden in the desert though...
 
Oonyack
Male
Cockasian

25k miles
Only thing that hasnae broke:D

Still time though:augie
 
2006 GS 18K No Problems yet used all through year, garaged
[this makes me so nervous, tempting fate] :rob
 
VOSA seem to think it is due to water ingress:

http://www.vosa.gov.uk/vosa/apps/recalls/searches/expand.asp?uniqueID=A5DDA35C0000D4C8802570450037D9C0&freeText=Blank

Any idea where they get their information?

668 units involved :eek: - dont think BumW lawyers will be losing any sleep. If I remember correctly they did issue a notice for the o rings on these to be replaced.

And anyway its the FPC fin corrosion that stops them functioning as a heat sink that causes the problem. Clean up the fins with a bit if glass paper and it usually solves it. :thumb
 
And anyway its the FPC fin corrosion that stops them functioning as a heat sink that causes the problem. Clean up the fins with a bit if glass paper and it usually solves it.

That makes perfect sense !!! :thumb2
 
And anyway its the FPC fin corrosion that stops them functioning as a heat sink that causes the problem. Clean up the fins with a bit if glass paper and it usually solves it. :thumb

I'm tempted to agree that the problem is caused by the PCB overheating rather than water damage.

However my FPC didn't have any signs of corrosion.

Aluminium has excellent thermal conductivity, do you have any empirical evidence that oxidation reduces this to the stage that it would cause the PCB to burn out?

And how do you explain the two known examples where the FPC has failed within the first 600 miles? :augie

Tim
 
JAC
'05 1200GS
12,000 miles
All weathers
Garaged
No fuel pump problems (touch wood).
 
I'm tempted to agree that the problem is caused by the PCB overheating rather than water damage.

However my FPC didn't have any signs of corrosion.

Aluminium has excellent thermal conductivity, do you have any empirical evidence that oxidation reduces this to the stage that it would cause the PCB to burn out?

And how do you explain the two known examples where the FPC has failed within the first 600 miles? :augie

Tim

As an innocent aside. IF (that's a big if) it was found out that overheating or cooking of the PCB is the problem.

It would be funny to learn that a percentage of the failures were due to people bunging up the well in which the device sits with gloop, stopping harmless water ingress but preventing nasty heat egress.

Failure of two in the first 600 miles? Possibly nothing more sinister than the the law of large numbers; two fail in every 5,000 say = 0.04% or zero point four in every one thousand? Your guess is as good as mine....I guess. :nenau
 
, do you have any empirical evidence that oxidation reduces this to the stage that it would cause the PCB to burn out?

No - and it doesn't initially burn out it fails and cuts out, usually it will then work again if the bike is allowed to cool down.

And how do you explain the two known examples where the FPC has failed within the first 600 miles?

I don't.
 


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