Another step forwards in solving the problem...now, Lambda sensors info please?

Shouldn't, but it does.

And they've been cured by replacing the lambda, by me and BMW main dealers on a customers bike who were stranded in leeds with bad high speed running and another customer in switzerland who went to a main dealer. Both cured by new lambdas.

Sorry guys, that was poorly worded. When I said high speed I should have said high load such as acceleration. A dead lambda won't stop your bike getting to 100mph, it might just be crap when you get there.
 
Right, I'm almost back to normal (sic) although the broadband speed is very broad, without speed, and the F**king power keeps tripping out. :blast

To answer some previous questions, and uncle dick has provided a very good explanation, all I was saying was that it's worth checking the sensor electrically and that I've replaced a lamdba sensor and didn't cure a problem.
Additionally, I have been reliabley informed (ex BMW geezer...I presume that's reliable :confused:) that Motronics tend not to fail.

So what happened after the replacement sensor went in? Is it done yet? :nenau
 
Never mind. :comfort Sunny here all day and the lanes dried out a bit. :D


That's nice for you :thumb2

Now, do something useful and get ready to answer my next question.......when I post tomorrow (assuming it's not snowing :rolleyes:) that I've fitted the new lambda and pipes and run it around the block but apart from being too noisy, it hasn't cured the problem........where do I get my throttle bodies serviced and how much is it going to cost me?

:beerjug:
 
I'm not posting anything useful.
Just here to sort of give moral support. :D
If i were there i'd be making the tea, passing spanners and grunting and nodding in agreement at the right times - as if i knew wtf was going on. :augie

Good Luck. :thumb2
 
There are other things on fannys bike that may be contributing to these problems - the R/H throttle cable is too short and has to have the locking nut underneth the locating tab on the body instead of on top just so you can get a thou of slack in the cable . :D

So it could be the throttle cable cassette is fecked ?.

Lets go back to the beginning - Chad and Maverick did a lot of work on the bike for Bill after it had stood for a long period of time, i think others may also have "helped".
One of the jobs undertaken amongst all the other work was removing the alarm after the bike wouldn't start.
Now, just after all this work was done the bike dropped a valve........... :rolleyes:

So, you can see this has great potential and everyones opinion on what the problem is/was/could be, is very admirable but as this bike isn't normal and was worked on by several enthusiatic amateurs all at the same time (no doubt all sharing the same spanner) gives us unlimited scope...:D



the alarm removal , was done by a well reputed ex bmw mechanic over this way, whom i hold in the same esteem as your good self he also fitted a replacement flywheel and checked over the engine before it was handed back to us and was running very sweetly :thumb and as i recall bill did some submarining whilst on a ride out at the Hog raost with aplomb:D

i dont share my spanners with any fucker :pullface

the one thing with this whole valve drop debacle is that it seems to be forgotten that bill had to stop whilst negotiating very heavy traffic in london in high temperatures because the engine was taking a serious roasting if this was contributing to that incident i could not say , im an enthusiastic amateur :P and your right this is not your average bike most have not done and will never will do the bloody hard miles bills bike has :101
 
Have you found out what caused the huge valve clearances?
 
Bill,
Thinking outside the usual;
Have you taken every connector appart, cleaned it and put it back together :nenau

Neil


Most, and certainly the ones linked to the likely areas to cause the symptoms.

After getting the new lambda fitted (I'm waiting for a chunk of mandrelled pipe to arrive tomorrow) , if it hasn't had a significant effect on improving things, I shall go through the connectors again one by one.....the next steps after what proved to be a very cheap lambda replacement job will probably be significantly more expensive, so I'll remove all the little things like connectors from the equation before I go on to the big heavy stuff like looking at deep engine internals :thumb2
 
Most, and certainly the ones linked to the likely areas to cause the symptoms.

After getting the new lambda fitted (I'm waiting for a chunk of mandrelled pipe to arrive tomorrow) , if it hasn't had a significant effect on improving things, I shall go through the connectors again one by one.....the next steps after what proved to be a very cheap lambda replacement job will probably be significantly more expensive, so I'll remove all the little things like connectors from the equation before I go on to the big heavy stuff like looking at deep engine internals :thumb2

Check the wiring to the L/H injector, all the way from the injector as far as possible up into the loom.
 
Check the wiring to the L/H injector, all the way from the injector as far as possible up into the loom.


I have checked the bottom end (clean and as sparkly fresh as a new sparkly fresh thing, not even a speck of Moroccan dust under the boot) but I'll certainly do more checking :thumb2

Is it possible to get to the other end of it without ripping the loom apart so I can do some continuity tests on it do you know?
 
havinghad an old saab 900 turbo and had problems - using old bosch stuff - ive done lots of reading about possible electronic problems - especially lambdas and shit.

i don't think its your lambda (- but i wouldn't be surprised if is.)

i think its HT - coils and plugs - but happy to be wrong.

HT breaks down under load - under 3000rpm isn't load - over 3000 is.

worth another look ?
 
A nice respite from the sleet and rain today, so off came the cat and stubby.....one small tap with a technical impact adjuster on a 22 mill spanner and out came a shitty looking old lambda:

P1020856-XL.jpg


Ready to go in with the new one

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Popped it in to the Y piece and torques it up according to the BMW official torque setting of tight enough and 4 white knuckles

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(yes, I park on the wrought iron gate and chain the bike to it :blast)

Earlier in the week I took delivery of a 45 degree mandrilled pipe with the vague idea of replacing the missing WUDO angled connector and running the remus under the pannier.......The angles are all wrong though, and the 45 degree bend would have left the box pointing DOWNWARDS from under the pannier......not clever and also rather stupid looking :blast

So, a quick change of plans and I offered the new bit of pipe p to the oval section outlet of the remus.....hmmmm, pretty close, so out comes the angle grinder and I treated the pipe to a circumcision :D

(there's a ridge around both ends of this pipe, looks like an olive on a bit of plumbing copper tube)

Then , it's out with the technical impact adjuster again and a couple of dozen whacks later, the now oval section end of the new pipe is a very tight interference fit into the Remus outlet :bounce1

I have a fine collection of impact adjusters, so next I selected the big rubber one and rammed the new pipe up the remus' hole.

Offering it all up again, it looks ok and will clear the pannier, the pillion footrest bolts and the pannier frame......it's a nice tight fit as well, but I drilled a hole into the new pipe and squeezed off an extra thick extra long pop rivet to keep the end pipe from spinning through the windscreen of some poor unsuspecting twat one day :thumb2

P1020870-XL.jpg


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In goes the Y piece, new lambda attached, and the nice new heatshrunk cable with a sensible 3 inches added length (who couldn't really do without an extra three inches, let's be honest) wiggles its way up behind the fuel and ignition wiggly stuff on the right hand side of the bike.....No need to remove tank and piss about with the QDs, just sliding it backwards gives enough room to sort it all out.

Plug resting on cylinder about to be connected:

P1020865-XL.jpg


And reconnected and about to be cable tied up neatly near headstock:

P1020867-L.jpg


At this stage, the 'zorst was back on, new lambda in but nothing was clamped up.....the rules say you have to try it though, so try it I did......and bliss!!

Noisy (possibly too noisy but I'll get to that later) but running nicely....revs cleanly, holds steady at 3,4,5k revs without bogging and fluffing after 20 seconds.....I've got a big grin on my face at the moment and I'm feeling good :JB

Off it all comes again to put the clamps in place and tweak the mounting brackets (I still need to bodge one up with the angle grinder & dremel finish but for now, I can secure everything well enough to go around the block)

An hour later (I had big problems working out the best combination of brackets and connectors) everything is in place and tightened up......Rosie and the kids come around with the doggit on their way to the beach just in time for me to fire it up again.....the fekker takes 30 seconds or more of turning over (really unusual for my bike, it normally starts in a second) then it fires.....

SHIT!!!

Instantly, it's wrong......fluffing and farting again, exactly as before :blast

In the forlorn hope that it might just be fed up parked there, I take it round the block but no, same as before, MERDE!!!

So now, I'm pissed off and knackered......however, I am also going to force myself to be positive....SOMETHING that is not secondary coils (new) and not HES (new) and not fuel pump (new) and not Lambda sensor (new) and not fekking obvious is preventing this damn bike from firing properly....I'm encouraged by the fact that twice now (once upon changing the LH injector and today after loosely fitting the pipes and new lambda) it's run sweetly......OK< on the second of those times, it was parked and not under load, but it was sweet.

Why the ferk then did it revert to fluffing running? :blast

Tomorrow, assuming it's not sleeting again, I'm going to reset the motronics and try it immediately.....Then I'm going to remove the new lambda and plug thee hole with the old presumed-dead on and try it......then I'm going to pull apart every single fekking plug and connector I can, clean them all out AGAIN and try again :blast

I do not believe it's a 'deep engine' problem......that would be consistent, so that's a positive I guess.

P1020852-XL.jpg


(bracket above needs fixing...drilling, trimming and tidying up)

A cock on the bike and a cock out the back of the bike :D
P1020859-XL.jpg


P1020857-XL.jpg
 


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