ADVrider

Go Back   ADVrider > Bikes > Old's Cool
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 03-26-2009, 02:45 PM   #1
datchew OP
Don't buy from Brad
 
datchew's Avatar
 
Joined: Aug 2005
Location: Savannah - the dirty south
Oddometer: 7,408
rpm-matching squeak under front engine cover

1989 r100gs

Just rode a VERY hard 720-ish miles to Florida and back to aid with a very sick kid. Upon return, something under the front engine cover is squeaking in sync with the motor RPM.

I'm thinking brushes or the cam/lifter interface of the points (my bike is converted).

Can't dig in till this weekend and time's running short for the spring fling.
Question: has anyone had similar experience?
I'm hoping for a lucky "oh that's easy just do this" fix.
datchew is offline   Reply With Quote
Old 03-26-2009, 04:48 PM   #2
Cigars&Scotch
My eyes are up here
 
Cigars&Scotch's Avatar
 
Joined: Aug 2005
Location: Fancy Pants of North Moran
Oddometer: 1,817
I would pull the cover (with the battery disconnected), reconnect it and start her up to see if you can pinpoint the squeak. It should be pretty apparent to where its coming from. You really only have the rotor and brushes, timing chain, bean can and front seal.

Also double check your oil level. I had a cylinder head that was making more noise than usual and it turned out to be low on oil do to a 750 mile run.
__________________
Mike

"Why don't you buy some flea collars for your ankles so the ants wont climb up you leg and bite your candy ass!!!" Kennyanc 07 H.Springs

38 BMW R71 w/sidecar Kung Fu version
77 BMW R90S Huh ?
90 BMW R100GS/PD "At last!"

NRA Life Member, Trout Unlimited Life Member
Drink till I'm Drunk Life Member
Cigars&Scotch is offline   Reply With Quote
Old 03-26-2009, 05:21 PM   #3
Stagehand
+/- V TDSPP
 
Stagehand's Avatar
 
Joined: Oct 2004
Location: Shawangunks
Oddometer: 24,920
its the battery.
__________________
Unintentional psychokinesis.
Stagehand is offline   Reply With Quote
Old 03-26-2009, 05:29 PM   #4
datchew OP
Don't buy from Brad
 
datchew's Avatar
 
Joined: Aug 2005
Location: Savannah - the dirty south
Oddometer: 7,408
Quote:
Originally Posted by Stagehand
its the battery.
stop that you.


Will do Mike. Oil level is good. I check it religiously and it usually stays just right unless I fun 80+ mph on the freeway for a few hours.
datchew is offline   Reply With Quote
Old 03-26-2009, 05:31 PM   #5
Stagehand
+/- V TDSPP
 
Stagehand's Avatar
 
Joined: Oct 2004
Location: Shawangunks
Oddometer: 24,920
I am so sorry i have been dying to use that since this morning, I dont know why.

I wish I could help with random noises under the hood, but... holy crap man where to begin? If I know GS's it will not be there when you go to start it up next time.
__________________
Unintentional psychokinesis.
Stagehand is offline   Reply With Quote
Old 03-26-2009, 07:14 PM   #6
RandyB
.
 
Joined: Jan 2006
Oddometer: 5,072
Earplugs.
__________________
I've been shot, cut, burned, blown up, fired, busted, promoted, reprimanded and decorated. What are you going to do? Ban me?


Blessed be the Lord my God, who prepares my hands for war and my fingers for battle. Psalm 144:1
RandyB is offline   Reply With Quote
Old 03-26-2009, 07:31 PM   #7
bmwrench
Beastly Adventurer
 
Joined: Nov 2006
Oddometer: 1,899
My guess is that the diode board mounts have broken and the board is resting against the cover.
bmwrench is offline   Reply With Quote
Old 03-26-2009, 07:39 PM   #8
bgoodsoil
Dare to be Stupid
 
bgoodsoil's Avatar
 
Joined: Jul 2008
Location: Washington, DC, USA
Oddometer: 4,204
that's what you get for going back to points, luddite! Why don't you just hire two cavemen to sit over the spark plug holes and bang rocks together!

Hate to say it man, but you may have a bearing going. I can't picture brushes squeeking. could be one of the dragons in the bean can has a cold though. Try touching things and feeling for vibration if the sound doesn't give it away. I found a bad pulley on my mom's trailblazer that way. She was CERTAIN it was the transmission(all problems involve the 'transmission' with her, I don't think she even knows what it is).

you ask a simple question and get 5 smart-ass comments. man I love this place!
__________________
'85 BMW r80G/S--Another G/S on the road--Central America on a Shoestring--Nova Scotia on a Shoestring--Never Leave a Man's Behind

Proud SmugMug User Support ADV: Don't give those cheap bums your discount code

bgoodsoil screwed with this post 03-26-2009 at 07:53 PM
bgoodsoil is offline   Reply With Quote
Old 03-26-2009, 08:58 PM   #9
datchew OP
Don't buy from Brad
 
datchew's Avatar
 
Joined: Aug 2005
Location: Savannah - the dirty south
Oddometer: 7,408
hmmm. More stuff to check. Well, i'll dive in this weekend.

If it's a bearing going, that may be the end of my relationship with this bike.
And I won't just sell it, I'll take it apart piece by piece and send it to the 4 corners of the earth cursing every last piece as it departs my presence forever.

So, let's hope it's something simple. I'm a bit edgy on the temper lately.


ps. Solid mounts on the diode board. Good thought though!
pps. I heard it despite earplugs. it's almost perfectly cricket pitch.

Sounds EXACTLY like the bushings dying on the blower fan from an e30.
datchew is offline   Reply With Quote
Old 03-26-2009, 09:06 PM   #10
WooPig
Oh Glory!
 
WooPig's Avatar
 
Joined: Aug 2006
Location: Not the heat. The humility.
Oddometer: 545
Quote:
Originally Posted by datchew
So, let's hope it's something simple. I'm a bit edgy on the temper lately.
Now don't go all Hulk again.
Mine has the roo bars and all the fiberglass crap. Squeaks and chirps constantly. I would never hear this bearing failure thing. So if you part it out... dibs on the headlight pod!
__________________

WooPig is offline   Reply With Quote
Old 03-27-2009, 05:42 AM   #11
RandyB
.
 
Joined: Jan 2006
Oddometer: 5,072
I need an oil cooler and some spokes.

We need a vulture avatar for times like this.
__________________
I've been shot, cut, burned, blown up, fired, busted, promoted, reprimanded and decorated. What are you going to do? Ban me?


Blessed be the Lord my God, who prepares my hands for war and my fingers for battle. Psalm 144:1
RandyB is offline   Reply With Quote
Old 03-27-2009, 06:20 AM   #12
bpeckm
Grin!
 
bpeckm's Avatar
 
Joined: Apr 2008
Location: Road Island
Oddometer: 5,547




No problem, mon!
long ago we all decided








Quote:
It's ALWAYS the battery.



__________________
XS650 becomes a VT BackRoadRunner
Loving the 80ST
I love projects that take twice as much effort as should be needed. Should be an Airhead motto. (disston)
__________________
bpeckm is offline   Reply With Quote
Old 03-27-2009, 07:14 AM   #13
bmwblake
upside down parker
 
bmwblake's Avatar
 
Joined: Mar 2004
Location: nashville, tn
Oddometer: 3,274
i'm still waiting for you to buy a honda.


Quote:
Originally Posted by datchew
If it's a bearing going, that may be the end of my relationship with this bike.
And I won't just sell it, I'll take it apart piece by piece and send it to the 4 corners of the earth cursing every last piece as it departs my presence forever.

Sounds EXACTLY like the bushings dying on the blower fan from an e30.
bmwblake is offline   Reply With Quote
Old 03-27-2009, 07:17 AM   #14
bgoodsoil
Dare to be Stupid
 
bgoodsoil's Avatar
 
Joined: Jul 2008
Location: Washington, DC, USA
Oddometer: 4,204
wait, chirping? you said squeeking! now that's a whole different matter.

I should've said this earlier but best wishes to the kid. I hope he gets better.
__________________
'85 BMW r80G/S--Another G/S on the road--Central America on a Shoestring--Nova Scotia on a Shoestring--Never Leave a Man's Behind

Proud SmugMug User Support ADV: Don't give those cheap bums your discount code
bgoodsoil is offline   Reply With Quote
Old 03-27-2009, 09:30 AM   #15
Infracaninophile
Finding My Way..
 
Infracaninophile's Avatar
 
Joined: Sep 2001
Location: New England, USA
Oddometer: 7,511
I'll trade you all of my old hulk memorabilia for your GS. How much gas is in the tank? That will alter my valuation of your bike.

I'm sure it's something simple (but incredibly expensive).

T.
Infracaninophile is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 02:27 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014