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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: Dbarcle1@gmail.com on September 19, 2017, 04:54:13 AM

Title: Fuel sender unit
Post by: Dbarcle1@gmail.com on September 19, 2017, 04:54:13 AM
I am trying to repair a broken fuel sender unit on my 84K100RS,(the plastic one) have tried several adhesives the latest being a JB weld product. Nothing seems to work, the unit itself cannot be replaced at least here in Australia. Without a solution this bike is destined to be an expensive white elephant for me. Thanks if anyone can help, cheers David
Title: Re: Fuel sender unit
Post by: Martin on September 19, 2017, 05:23:38 AM
Post some pictures of the part in need of repair. Then an inmate might be able to come up with a solution.
Regards Martin.
Title: Re: Fuel sender unit
Post by: Dbarcle1@gmail.com on September 19, 2017, 06:05:08 AM
Ok I'll do that asap, thanks
Title: Re: Fuel sender unit
Post by: Dbarcle1@gmail.com on September 19, 2017, 06:23:27 AM
Thanks but wrong ones, wait I'll send a pic. David
Title: Re: Fuel sender unit
Post by: Dbarcle1@gmail.com on September 19, 2017, 06:52:45 AM
Watch this space, 9pm here & I'm not home so will post info soon. Thanks for responding.
Title: Re: Fuel sender unit
Post by: jay1622 on September 19, 2017, 08:52:06 PM
 :popcorm


Early reference for potential source... http://www.euromotoelectrics.com/
Title: Re: Fuel sender unit
Post by: Blue on September 20, 2017, 04:33:34 AM
I might have one.  What is the part number?
Title: Re: Fuel sender unit
Post by: Laitch on September 20, 2017, 04:42:21 AM
 :sip:

(http://www.motobrick.com/gallery/0/1601-200917043851.jpeg)
http://www.k100-forum.com/t1503-fuel-light-unit


Title: Re: Fuel sender unit
Post by: Dbarcle1@gmail.com on September 21, 2017, 03:00:41 AM
Yes that's it, can't seem to send a pic of my own
Title: Re: Fuel sender unit
Post by: Dbarcle1@gmail.com on September 21, 2017, 08:24:46 AM
I think I have sorted this phone, here's 2 pics of my broken sender.
Title: Re: Fuel sender unit
Post by: Dbarcle1@gmail.com on September 21, 2017, 08:27:27 AM
And the other one
Title: Re: Fuel sender unit
Post by: Martin on September 21, 2017, 08:22:31 PM
It case you can't fix the sender, I wonder if a later tank swap is possible. I know the early ones were secured by a bolt, but besides that does any one know whether a conversion is possible with minimal changes. Dbarcle you might also want to try the BM shop PH (07) 3356 6128.   http://bmshop.com.au/
Regards Martin.
Title: Re: Fuel sender unit
Post by: bmwpyro on September 21, 2017, 09:28:56 PM
I'm wondering what is wrong with the sender that would cause non operation of the k100? so far I don't see it stated in this thread.
could be very obvious to everyone but me :D
Title: Re: Fuel sender unit
Post by: Dbarcle1@gmail.com on September 22, 2017, 12:56:51 AM
Sender also supplies power to fuel pump & prevents fuel pissing out the bottom, yes tank change I have considered but make that last option
Title: Re: Fuel sender unit
Post by: Martin on September 22, 2017, 01:41:11 AM
Try the BM shop, he is hard to get on the phone as he is a one man show. Might have to try multiple times, if you are unsuccessful in contacting him let me know and I'll ride down there.
 Regards Martin.
Title: Re: Fuel sender unit
Post by: bmwpyro on September 22, 2017, 01:58:42 AM

oh I see it now, I thought at first that was a clamp type.


is that some form of plastic? if that is plastic then you can try to reweld it. you need to find out what kind of plastic it is.
you can reweld it all or you can reweld enough to provide strength and structure and use plastic epoxy (Loctite?) to fill in the rest.
the process is similar to metal welding...  I suggest you test it out on something first til you are comfortable doing it. its a pretty handy skill for other things.
suggest to use a jig to hold it in place then weld away. pls watch the second link for safety considerations also.


here are a few videos to start you off
https://goo.gl/Zikcoj (https://goo.gl/Zikcoj)
https://goo.gl/jTwC5H (https://goo.gl/jTwC5H)
https://goo.gl/A9wuCM (https://goo.gl/A9wuCM)

HTH, Good Luck.
Title: Re: Fuel sender unit
Post by: Laitch on September 22, 2017, 09:43:47 AM
oh I see it now, I thought at first that was a clamp type.
What does a "clamp type" clamp? Visualization here is illusive this morning.
Title: Re: Fuel sender unit
Post by: bmwpyro on September 22, 2017, 02:14:05 PM
i didnt know what it was called... :yes but after looking online, i think its called a compression fitting. a cobbled visual is attached.


i hope dbarcle1 can fix it.
Title: Re: Fuel sender unit
Post by: Dbarcle1@gmail.com on September 28, 2017, 03:21:43 AM
Not sure what I'm supposed to do with that, can't block it off, I was kinda hoping someone had a 2nd hand one on offer, that might be my only fix
Title: Re: Fuel sender unit
Post by: Martin on September 28, 2017, 04:09:25 AM
Try Sydney Kmodelbeamerbits http://www.kmodelbeamerbits.com.au/bmwk-seriesshop.html#!/K-Series-Used-Parts/c/20728236/offset=0&sort=normal  or the BM shop Brisbane  http://bmshop.com.au/
or Motorworks UK https://www.motorworks.co.uk/vlive/Home/index.php
Regards Martin.
Title: Re: Fuel sender unit
Post by: bmwpyro on September 28, 2017, 04:12:17 AM

you can try motorworks.co.uk and see if they have one on stock? price seems reasonable...


http://www.motorworks.co.uk/vlive/Shop/Parts.php?T=6&Q=BA_10_40_KA_60_50_CA (http://www.motorworks.co.uk/vlive/Shop/Parts.php?T=6&Q=BA_10_40_KA_60_50_CA)


or maybe someone can comment if a later tank will work?