Replaced sisters guibo!

[Jon K]

Haha i lost, we were making bets as to whose guibo was more f-d up.

She won.

(hers on right)

http://e34.digital7.com/BMW%20Work/guibos.jpg

[mzarifkar]

hoep you dont mind me asking, but whats a guibo?

[infinity5]

connects your drive shaft to your transmission. its also called a "flexdisk."

its a ... flexible.. disk... heh.
Can anyone explain why it has to be rubber, as opposed to a U-joint or something? is that angle of the transmission to the diff. that strange? seems like they could just reposition that stuff..

[Kalevera]

M....no, contrary to what some participants of the f/fog thread may say, there are no stupid questions -- don't feel bad about asking them. We all had to start learning at some point.

The guibo acts as a dampener between the transmission output shaft and the drive shaft. The idea is to isloate the engine/trans from the wheels/differential/drive shaft to a degree. As they're made out of rubber, and usually reinforced with metal sleeves through the bolt holes, they tend to wear out, resulting in driveline noise. I'm sure you can imagine what neglecting the part will do to the car in the long term.

Some automatics don't have them; but, generally, all E34s do.

best, whit

[Jon K]

The reason they shouldnt be solid is simply for vibration. Rubber gives. People driving 5 series sedans wanted a nice riding car not a track car. A polyurethane guibo ( heheheh... ) would mean some sacrificed driving comfort.

Also if it were solid, it would put even MORE strain on the center support bearing.

If left un-replaced, the guibo will kill the center support bearing, and vice versa... here is what that looks like, new bearing on right, old bearing on left:

http://e34.digital7.com/BMW%20Work/DSCN0573.JPG

[mzarifkar]

M....no, contrary to what some participants of the f/fog thread may say, there are no stupid questions -- don't feel bad about asking them. We all had to start learning at some point.

The guibo acts as a dampener between the transmission output shaft and the drive shaft. The idea is to isloate the engine/trans from the wheels/differential/drive shaft to a degree. As they're made out of rubber, and usually reinforced with metal sleeves through the bolt holes, they tend to wear out, resulting in driveline noise. I'm sure you can imagine what neglecting the part will do to the car in the long term.

Some automatics don't have them; but, generally, all E34s do.

best, whit

Thanks, how often should one replace them? or should you just visually inspect and decode from that?

[Gayle]

M....no, contrary to what some participants of the f/fog thread may say, there are no stupid questions -- don't feel bad about asking them. We all had to start learning at some point.


best, whit


Just as Jeff is the official *******, I am the official spokesperson for the totally clueless. Asking stupid (aka basic) questions is my job, and you can't take that away from me. But Mehrdad, we can share. It is a big job and I welcome some help. You can ask the questions that I miss. :D

[Kalevera]

Thanks, how often should one replace them? or should you just visually inspect and decode from that?
We do it by visual inspection. Get the car up in the air and have a look at the back of the trans. The guibo and proximal part of the driveshaft can be seen past the exhaust and heat shielding.

They crack, as Jon's posted pictures of, and lose chunks of material out of the sides.

I'm trying to remember the models that didn't have them. I know I've seen one or two recently, but can't think of them....argh.


best, whit

[uscharalph]

The reason they shouldnt be solid is simply for vibration. Rubber gives. People driving 5 series sedans wanted a nice riding car not a track car. A polyurethane guibo ( heheheh... ) would mean some sacrificed driving comfort.

Also if it were solid, it would put even MORE strain on the center support bearing.

If left un-replaced, the guibo will kill the center support bearing, and vice versa... here is what that looks like, new bearing on right, old bearing on left:

http://e34.digital7.com/BMW%20Work/DSCN0573.JPG
What bearing on the left? LOL!

[Jon K]

What bearing on the left? LOL!

haha thats really funny

[MTRIPLE]

haha thats really funny

about as funny as the amount of pictures you post...

[uscharalph]

I like pictures!

[BigKriss]

Some automatics don't have them; but, generally, all E34s do.

best, whit

Does my car have one? I cannot find it on realoem.com

http://www.realoem.com/bmw/showparts.do?model=HD22&mospid=47382&btnr=26_0046&hg=26&fg=10

[632 Regal]

Kris, I think you are one of the exceptions.

[Jon K]

about as funny as the amount of pictures you post...


Which isn't nearly as funny as your total number of posts.

[Guelphguy]

Does my car have one? I cannot find it on realoem.com

http://www.realoem.com/bmw/showparts.do?model=HD22&mospid=47382&btnr=26_0046&hg=26&fg=10

Might not, mine is a 1990 automatic 535...Bruno and I replaced the hanger bearing but there was NO guibo.

[granit_silber]

Kris, I think you are one of the exceptions.

Is the Guibo specfic to car model (i.e. 535, 525, etc..) or to the tranny?

I'm a little confused as to the specification of my tranny. I think the 525's were equipped with the GM. But mine has the consol selector of the ZF 4hp22?!? Does anyone know if the ZF was an upgrade in '92? I ask because if I have a guibo, I'm sure it needs repacing by now.

-ashley

[Bill R.]

1
Does my car have one? I cannot find it on realoem.com

http://www.realoem.com/bmw/showparts.do?model=HD22&mospid=47382&btnr=26_0046&hg=26&fg=10

[Bill R.]

.
Is the Guibo specfic to car model (i.e. 535, 525, etc..) or to the tranny?

I'm a little confused as to the specification of my tranny. I think the 525's were equipped with the GM. But mine has the consol selector of the ZF 4hp22?!? Does anyone know if the ZF was an upgrade in '92? I ask because if I have a guibo, I'm sure it needs repacing by now.

-ashley

[granit_silber]

.
Bill,

Thanks!
-ashley

[Bill R.]

guibos. The manual transmission transmission versions had guibos in the m20 525 and the m30 535, I suspect that since the torque converter acts as a vibration damper by decoupling the drivetrain they didn't have to have one. All the manuals as far as i have seen have a guibo, most if not all of the later automatics do to such as the m50,m60 cars.





Is the Guibo specfic to car model (i.e. 535, 525, etc..) or to the tranny?

I'm a little confused as to the specification of my tranny. I think the 525's were equipped with the GM. But mine has the consol selector of the ZF 4hp22?!? Does anyone know if the ZF was an upgrade in '92? I ask because if I have a guibo, I'm sure it needs repacing by now.

-ashley

[JonE]

Hi Bill,
Just to clarify, would it be the automatic 535's and the 525's with M30 and M20 engines that probably did NOT have guibos? All other DO have them?

[Bill R.]

guibo.



Hi Bill,
Just to clarify, would it be the automatic 535's and the 525's with M30 and M20 engines that probably did NOT have guibos? All other DO have them?

[MTRIPLE]

Which isn't nearly as funny as your total number of posts.


"haha thats really funny"

[SRR2]

Jon's pictures are always entirely appropriate. What's your problem?

[Jon K]

Jon's pictures are always entirely appropriate. What's your problem?


He's sad inside.

[MTRIPLE]

He's sad inside.

if you only knew...

[liquidtiger720]

do 1995 e34 525i m50's have guibo's?

[mattyb]

93 540i has it . i just did it