Guibo / Flex Disk for a 1968 - 1600

[1600 GI]

Here is a long shot.  One of my transmission flex disk broke due to a broken transmission mount.  I removed and and I am trying to replace all 3 guibos/flex disks.  It was a confusing and daunting quest to find the correct part number since there are many different options.  After ordering the incorrect ones I finally got the correct part number 26111100863, but is very expensive x3.  I am hoping this group may have 1 or 2 laying around probably from a transmission swap.  If you have and want to sell please let me know.  Original part is JURO (Part # 26111100863) for an early 1600 model.  Picture attached for reference.  Thanks, 

 

 

[Mike Self]

If you can find a Jurid part number (vs the BMW #) you may be able to find an interchange with another car, or even a piece of industrial equipment.   Same thing if you can find the dimensions--diameter, thickness, hole spacing etc.

 

 I discovered that the flex disks on my '48 Fiat (dunno what Italian is for guibo) were also used in an Italian-made printing press, and thus are fairly easy to find since many of the presses are still in use.  

 

A last ditch thought would be to find an 8 bolt output flange and front section (or the whole driveshaft) from a 2002 and replace your setup with the much-easier-to find 2002 setup.  Both long and short neck diff '02s used 8 bolt guibos and U joints in the center and at the diff end...

 

mike 

[1600 GI]

I believe to have found the solution under the following site:

https://e-rubber.eu/product/sgf-ga000-024-giubo-flexible-coupling/

Much more affordable than the US options.  Seems to match all dimensions.  Will see when I receive one in order.  

[Lorin]

2 hours ago, 1600 GI said:

I believe to have found the solution under the following site:

https://e-rubber.eu/product/sgf-ga000-024-giubo-flexible-coupling/

Much more affordable than the US options.  Seems to match all dimensions.  Will see when I receive one in order.  

This was recently gone over.  While the dimensions might be similar the torque rating is way too low at 150 ft lbs. 

 

Even a stock 1600 in first gear would easily send double that amount through the guibos. 

[1600 GI]

7 minutes ago, Lorin said:

This was recently gone over.  While the dimensions might be similar the torque rating is way too low at 150 ft lbs. 

 

Even a stock 1600 in first gear would easily send double that amount through the guibos. 

Thanks so much I did not even think about the torque.  Good to know.  

[1600 GI]

52 minutes ago, Lorin said:

This was recently gone over.  While the dimensions might be similar the torque rating is way too low at 150 ft lbs. 

 

Even a stock 1600 in first gear would easily send double that amount through the guibos. 

I just looked on the tech specs for a 1600 and the max. torque is 130 Nm.  The 2002 max. torque is 167 Nm.

The flex disk is rated 210 Nm. From that perspective it seems to work.  I am not certain if the torque is the same on the transmission.  

[Slavs]

They were available in the $40-$60 range until recently. The larger ones for the 2002 and 320i are still relatively cheap. The prices may have gone through the roof because they may be manufactured in smaller batches these days. I don't know.

[1600 GI]

2 minutes ago, Slavs said:

They were available in the $40-$60 range until recently. The larger ones for the 2002 and 320i are still relatively cheap. The prices may have gone through the roof because they may be manufactured in smaller batches these days. I don't know.

For the 2002 that is true.  For an early 1600 is different.  Can't go with the same guibo as it does not fit.  All dealers and websites, are over $180 a piece (x3).  Not something I want to spend right now.  

[Lorin]

1 hour ago, 1600 GI said:

I just looked on the tech specs for a 1600 and the max. torque is 130 Nm.  The 2002 max. torque is 167 Nm.

The flex disk is rated 210 Nm. From that perspective it seems to work.  I am not certain if the torque is the same on the transmission.  

The engine makes 130 Nm which is multiplied by 3.7 (first gear) before the first guibo. That’s in the neighborhood of 480 Nm or a bit over double the torque rating. 
 

They are inexpensive, you could try them and see how long they last. 
 

And Slavs knows what he is talking about. 

Edited February 6, 2021 by Lorin

[1600 GI]

12 minutes ago, Lorin said:

The engine makes 130 Nm which is multiplied by 3.7 (first gear) before the first guibo. That’s in the neighborhood of 480 Nm or a bit over double the torque rating. 
 

They are inexpensive, you could try them and see how long they last. 

Thanks again for info on the transmission toque output.  I just found the post you previously mentioned.  And someone seem to have purchased the guibo from BMW and seems to be the same guibo in my link.  I also found that the replacement in question SFG GA000-024 is used by a drive-shaft shop.  Maybe the Nm ratings are wrong on the tech specs...  Anyhow.  I will find out and post my findings for future users.

 

Here is another link for a guibo supplier.

https://www.actionmachineinc.com/collections/rubber-flex-discs/products/ga000-024?variant=14934638100532

 

Thanks, 

[andyleonard]

If anyone gets hung out here, I have a bunch of these in a drawer. They were for a 1600 race car that got converted to 2002. They're in baggies in ArmorAll. Can do pics if interested. 

[Dudeland]

On 2/4/2021 at 4:17 PM, 1600 GI said:

Here is a long shot.  One of my transmission flex disk broke due to a broken transmission mount.  I removed and and I am trying to replace all 3 guibos/flex disks.  It was a confusing and daunting quest to find the correct part number since there are many different options.  After ordering the incorrect ones I finally got the correct part number 26111100863, but is very expensive x3.  I am hoping this group may have 1 or 2 laying around probably from a transmission swap.  If you have and want to sell please let me know.  Original part is JURO (Part # 26111100863) for an early 1600 model.  Picture attached for reference.  Thanks, 

 

 

I have one that I will give you for shipping.  Brand new. 

 

[1600 GI]

3 hours ago, Dudeland said:

I have one that I will give you for shipping.  Brand new. 

 

Absolutely.  I will take it out of your hands.  Thanks for your kindness.  Let me know how much shipping and where/how I can pay!

[Dudeland]

No worries, try to pay it forward.  Give me your zip code. I am shipping from Toronto Canada.

[Dudeland]

Just now, Dudeland said:

No worries, try to pay it forward.  Give me your zip code. I am shipping from Toronto Canada.

PM me with your zip code.  I can get it out the door asap.