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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 07-15-2014, 12:46 AM
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aa240sx aa240sx is offline
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Guibo Installation - alternating direction on guibo corresponds to bolt insertion?

Hello,

Currently performing a transmission job and wanted to know if anyone who has removed their drive-shaft has come across this curiosity.

Basically in every picture of an installed guibo, I always see the bolts lined up in one direction which is towards the transmission.

However, when I removed my guibo, the bolts were in alternating directions with 3 pointed towards the engine and 3 pointed towards the rear of the car. I also noticed that they corresponded to these tiny arrows that were imprinted on the guibo itself and that these arrows were pointed in opposite direction to each other as they alternated.

For some perspective, I have never had any driveline issues and the guibo that I've removed (though OEM I think) is in perfect condition and I will not be replacing it.

My question is, does it matter what orientation the bolts are when installing the guibo?

Thanks
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Last edited by aa240sx; 07-15-2014 at 12:48 AM.
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  #2  
Old 07-15-2014, 01:04 AM
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crowz crowz is online now
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I covered this in my auto to manual post in the e46 section. Let me go get it and post it here one sec.
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  #3  
Old 07-15-2014, 01:07 AM
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Quote:
Ok slightly muddy and fairly wet but I now know the guibo thing is installed correctly.

Climbed up under there the first time and saw an arrow on it and noted which way it was pointing. I then let the car down and go back in the house. After reading a good bit online I now know how it mounts.

Unfortunately I didnt note anything other than which direction it was facing. So I had to go back out there jack it up and climb back under again to use the new found knowledge to make sure it was really on there right.

Which way the arrows are pointed matters and doesnt matter

When I first read up on it the arrows were listed as "facing the transmissions flange" thus the arrow goes forward. Well thats actually not true.

What matters is the arrows are pointed to a flange point. Seems there are arrows forward AND backwards. Each arrows tip must be pointed at the flange your bolting to. So if the bolts going into the trans flange the arrow should be pointed at the trans. If its going into the drive shaft the arrow should be pointed at the back of the car.

Im sure some know this but I know this will get searched by people doing the swap one day and people going a guibo replacement so I figured Id spell it out.
There ya go.
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Old 07-15-2014, 01:08 AM
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Heres the thread about my swap in case it has anything else you need in it.

http://www.bimmerfest.com/forums/sho...=776904&page=3

The last page has the tools to buy at sears to release the clutch lock thing in the new self adjusting clutch your putting in.

Its 14mm hex socket.
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Old 07-15-2014, 05:45 AM
rdl rdl is online now
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Here's what BMW thinks. Images are from TIS.

All bolts in same direction, bolt head toward rear of car.




Guibo orientation

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Last edited by rdl; 07-15-2014 at 05:46 AM. Reason: typo
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Old 07-15-2014, 01:02 PM
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aa240sx aa240sx is offline
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Thanks - I was also going to ask about the dacromet washers and where they go. I will say this much the dacromet washers do absolutely nothing to prevent corrosion. In three of the six bolts (these would be the ones going through the transmission flange into the guibo), there was tons of corrosion.

I think for the sake of sanity (or to increase my insanity)...I'll take a picture of my guibo with all the bolts and washers installed, but sitting on my bench. I'll also provide some graphical representation of the orientation of the driveshaft and transmission and see if I've got this right before I install it.
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Last edited by aa240sx; 07-15-2014 at 01:06 PM.
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Old 07-15-2014, 01:36 PM
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Main thing is just remember that the arrow tips need to point to whatever that bolt is going into aka at the threads the bolt goes into.
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Old 07-15-2014, 06:51 PM
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Here's what's in the bestlinks to date for a search on "giubo"...
- Worn drive shaft or "giunti Boschi" DIY (1) (2) (3) (4) & a drive shaft and center bearing DIY (1) (2) & how to spell giubo (1)
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Please read the suggested threads, where the best always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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  #9  
Old 07-15-2014, 08:42 PM
JimLev JimLev is offline
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Quote:
Originally Posted by rdl View Post
Here's what BMW thinks. Images are from TIS.

All bolts in same direction, bolt head toward rear of car.




Guibo orientation

Mine are the same way. There is no way to put the bolts in from the front, they are too long.
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  #10  
Old 07-18-2014, 11:39 AM
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Anybody happen to have the torque spec for an 03 525i 5speed's flex disc guibo bolts/nuts? the bentley shows the following

M10 (8.8 grade) - 35 ft-lbs
M10 (10.9 grade) - 44 ft-lbs
M12 (10.9 grad) - 74 ft-lbs

I'm not sure if the bolts I have even have markings to tell me what grade they are? And If they are M10, would it even show 8.8 or 10.9 on the bolts?
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Old 07-18-2014, 11:47 AM
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18mm M12 bolts 74 ft-lbs

Shows those as the bolts in the guibo.

Last edited by crowz; 07-18-2014 at 11:50 AM.
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  #12  
Old 07-18-2014, 11:59 AM
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aa240sx aa240sx is offline
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thanks again for the help - was hoping for a lower torque value 74 ft-lbs is freeeakking a lot!! I did read up that these bolt grades do have markings on the head, so will double check when i get into it this afternoon.
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Old 07-18-2014, 02:34 PM
alex5er alex5er is offline
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Guibo Installation - alternating direction on guibo corresponds to bolt inser...

Great info. now I can tackle this project with confidence. Thank you in-advance to all that participated on this thread. I'll post before and after picture from my 97 528i. Flex disk Guibo removal and replacement


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Last edited by alex5er; 07-18-2014 at 02:36 PM.
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