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Old 07-09-2013, 09:14 PM   #16
jakell2010
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Location: Up State NY (ultra rural)
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I would pull the head ,,,with the case in the frame!!,,,don't yank the motor unless your replacing it for sure,,,or have a cradle or stand to mount it in to wrench on it there.

If you get the top covers off that should expose cams, timing chain etc,,,rule them out 1 by 1,,photograph it extensively so you know how to put it back together ,,,pay attention to timing marks,,,,honestly sounds like a seized bearing,,or locked piston, but leaning towards a bearing,,,,,,

If you can get a working motor for 2K USD,,thats a deal,,,your going to tie serious time into this,,and likely parts,,wait till you get to the parts that you need presses to pull apart
OR
you manage to fix this ,,then screw up the reassembly,,and have to re do the whole mess

Do you have any friends that are wrench heads,,,?,,,MAXBMW in NY has online blow-up of the motor you can use as example

I would go the replacement route,,,and postpone the trip

sorry to piss on your parade,,,but I've rebuilt a bunch of motors,,(not this one though),,and seen major screw ups,,from simple stuff

good luck

Joe
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Old 07-09-2013, 09:38 PM   #17
jakell2010
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Ebay US,,,a seller Bennett motor werks has a short block, crank and complete head,,,,the block is $699 head $400

listing # for the short block is 230717907858

apparently $2499 is list for a new BMW engine

try some of the bike salvage yards,,for a complete take out

try this http://www.beemerboneyard.com
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Old 07-09-2013, 10:37 PM   #18
Full Power
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That's a LOT of motor for 2500 US dollars.
Sounds like a BARGAIN to me.
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Old 07-10-2013, 01:09 AM   #19
dpm
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Sorry binman, that listing I was referring to has gone. It's been around for a couple of months tho so it might reappear?

I think there's a couple of 800STs breaking if you need internal parts.
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Old 07-10-2013, 04:54 AM   #20
Capt CF
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Quote:
Originally Posted by Full Power View Post
That's a LOT of motor for 2500 US dollars.
Sounds like a BARGAIN to me.
+1 - that sounds too good to be true, but that's great if it is. I won't worry about mine much then. :)
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Old 07-10-2013, 06:47 AM   #21
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Quote:
Originally Posted by jakell2010 View Post
apparently $2499 is list for a new BMW engine
No way, that price is just for the bare block or something. Last time I checked a new engine complete was $10G!!!


Yep.... HERE

Just "Add to Cart". That was easy!
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Old 07-10-2013, 07:59 AM   #22
Capt CF
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Originally Posted by Reaver View Post
No way, that price is just for the bare block or something. Last time I checked a new engine complete was $10G!!!


Yep.... HERE

Just "Add to Cart". That was easy!
He's right - $9785.64. That's more in line with what I was thinking. Back to worrying I guess. :)
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Old 07-10-2013, 10:09 AM   #23
sarathmenon
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Originally Posted by dpm View Post
I think there's a couple of 800STs breaking if you need internal parts.
The top end should transfer over, but if I am right, the bottom end is different. The S and ST engines are mounted with a forward tilt, and it probably means it has a different crank case.
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Old 07-10-2013, 10:22 AM   #24
luke-eole
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Cry Another bike similar problem

Quote:
Originally Posted by binman41 View Post
Hi All,

First thread on here so please be gentle :) ..... I have searched for related threads but cant find much.

I have owned my GS 800 for about 6 mnths or so now, and up till now she hasn't missed a beat. Its an 08' model with about 15k miles on the clock and full BMW service history (bought from a private sale and not a dealer).

So last Thursday I was riding along reasonably 'spiritfully' and the bike started to loose power, instantly dropped down a gear or two and it was still loosing power....before I could pull over it had already decided to stop, clutch in engine off.

I got home (recovered by van) and started it up again after it had a chance to cool, engine started and ran but very lumpy especially when reving it a tiny bit, metalic sound so switched it straight off. Started it again the following morning and again it sounded rough.

Initial thoughts were a cracked spark plug or a bent valve, so the plan was to remove sparks and rocker cover and check cams/valves and timing. Rocker cover off, put bike in gear (with spark plugs out) and went to turn over by hand....and the engine is seized solid... tried turning rear wheel in every gear, and by using a socket on the chain sprocket and nothing.

This leads me to think theres a problem with the big end or the gearbox.

Drained the oil, small metalic particles, very fine flakes, but nothing too sinister, and a good 3/4 litres of oil.

Removed the clutch cover nothing sinister looking, removed clutch plates, all the plates look ok. With plates removed and bike in gear the rear tyre spins the inner clutch basket freely, put the plates back in (with the outer most clutch plate joining the inner basket to outer basket and again its solid.

From here I am a bit stuck on what to do, what do people recommend? Discussed with BMW dealer, they are recommending I look around for a new (used) engine, but unfortunately due to funds I cant afford the 2k they are going for!

My next plan was to remove the engine completely and seperate the block to see if i can find out what it is. I imagine whatever the problem the engine has to come out regardless, wether thats to fit a new engine or repair the broken one....I know how much of a pain the engine is going to be to get out with a hoist etc.

Does anyone have any other ideas? Is it worth me dropping the sump off? Removing alternator cover? Removing clutch basket assembly?

Your help is greatly appreciated as at the moment im going crazy in limbo!

Oh i forgot to mention, the whole reason I bought the bike is that im off to do a 5 week tour over the european alps in September with a friend, so I need to get the bike back running again!

Cheers

Chris

Hey, looks like your not the only Brit who it shit out of luck

I think i have had the same thing happen to me on a 08' with 10800miles on it.....

does yours sound anything like this

http://www.youtube.com/watch?v=_TRj5...ature=youtu.be

mine went last week, not seized solid but wasnt able to turn it by hand so may well be close...

have a look at the UKGSER site

http://www.ukgser.com/forums/showthread.php?t=343042

Cheers
Luke
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Old 07-10-2013, 11:19 AM   #25
Reaver
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Originally Posted by sarathmenon View Post
The S and ST engines are mounted with a forward tilt, and it probably means it has a different crank case.
Yeah, well that AND the S ST engines are silver. C'mon now, that would look silly.

When you figure it out let us know what parts you need.

Or be like pkbinder here and just buy a new bike! Maybe he has some parts?
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Old 07-10-2013, 11:28 AM   #26
jttele
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I've got some engine lower end parts in good condition as well as a good condition cylinder head with valves and followers (no cams) that I'd be willing to talk to you about selling. I'm in the USA (North Carolina) though, so I'm not sure what the shipping across the pond might be, but it's another option anyway.
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Old 07-10-2013, 01:43 PM   #27
Rider 101
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second hand motor

There is a second hand motor newly listed on ebay in Italy for 1200 euros.
http://www.ebay.com.au/itm/motore-bm...#ht_706wt_1172
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Old 07-10-2013, 05:31 PM   #28
jakell2010
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I would jump on that,,,that looks basically what you need
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Old 07-10-2013, 06:58 PM   #29
Capt CF
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Originally Posted by jakell2010 View Post
I would jump on that,,,that looks basically what you need
+1 - the pics aren't very high res but from what I can see it looks like a really clean motor!
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Old 07-11-2013, 06:08 AM   #30
jttele
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+2, I hate to say it as much as I'd love to sell you some of my parts, but that engine looks like a great deal. I'd jump on that quick if I was in your shoes.
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