Is there a stronger version of this that I can use?
I imagine that the E28, especially the M5 used something stronger.
When I look it up on realoem, I see the E28 flex disc part number listed as an option for the E12, but there is an added note that it is to be used in conjunction with a spacer sleeve. Anyone know what this is about?
My e12 guibo is about 1.8" thick.
Thanks,
Blaise
PS-I would rather not replace my guibo every year.
Eddie in TO wrote:I replaced mine several years ago with an E28 version. It's what my mechanic suggested as they're more robust. I'll ask which model he used.
That's my plan, but they are thinner. Did he make a spacer?
Eddie in TO wrote:I replaced mine several years ago Mwith an E28 version. It's what my mechanic suggested as they're more robust. I'll ask which model he used.
That's my plan, but they are thinner. Did he make a spacer?
I don't see a spacer there. I'll ask him tomorrow and get back to you asap.
Eddie Ribeiro
5erholic
1980 528i with a BMW Motorsport heart
The E28 one is thinner, trying to think in my mind's eye, I'd say 1/4 to 3/8 of an inch. It's also a different style, like the one used on some autos on earlier cars, which actually looks weaker. But there is some room for adjustment in the driveshaft preload.
But after all that, I wonder if it's not the brand, not the design. Maybe a Meyle from Blunttech? Still much cheaper than OE, but might be better quality than MTC. And remember, it's not the design, the original ones from BMW lasted a long time.
You need something with a 96mm bolt circle. The E34 M5 3.8 guibo is thicker than an E28 one. Can't say if it's as thick as the E12 part. Funny how your guibo appears to have nothing in the way of reinforcement material impregnated in the rubber.
I also am more likely to blame manufacturer. MTC is crap, but I haven't found a Lemförder or even a Meyle for the early one.
I found out he installed a Lemförder E28 version. Shorter bolts were required.
Installation took place in June 2009. The E12 went through an ADS in Aug. '09 and the S38 has been in the car since June 2011.
He did emphasize to use the Lemförder version as the Meyle version is inferior based on his experience with them.
Eddie Ribeiro
5erholic
1980 528i with a BMW Motorsport heart
The only potential issue that I see with going with the 30mm guibo is that the center nose of the driveshaft (holds needle bearing) may bottom out on the transmission output shaft rod.
See here:
You can see the transmission output shaft rod in the background.
The center nose of the driveshaft sticks out 30mm beyond the flange. In theory, the use of the 30mm guibo would put nose of the driveshaft bottomed out at the transmission output flange. If I look at the wear marks on the output shaft, I can see that it is designed to move as the flex disk distorts.
In conclusion, I think I need to make sure that there is a bit of room in there, though it likely does not need to be a full 15mm.
Thank you BMW for the factory manual diagram. This should tell the story:
I wish I had time to machine a 12-15mm spacer that would span between the three flange holes for maximum rigidity. But I need to get the car back on the road, so I will likely concoct something with individual spacers. Not my first choice.
You're not alone, this one failed with about 3000 miles on it. The metal sleeves appear to be cast? whatever they are they cracked and one that happened the bolts loosen and no longer hold.
I've also had guibos fail on my Isetta with less than 500 miles on them. I attributed that failure to low quality parts. I've replaced them and they seem to be holding up so far. The car sees very few miles per year so it will be a while before I'll know for sure.
Trevor M wrote:You're not alone, this one failed with about 3000 miles on it. The metal sleeves appear to be cast? whatever they are they cracked and one that happened the bolts loosen and no longer hold.
I've also had guibos fail on my Isetta with less than 500 miles on them. I attributed that failure to low quality parts. I've replaced them and they seem to be holding up so far. The car sees very few miles per year so it will be a while before I'll know for sure.
I've never seen one fail like that, it's always been the rubber. Looks from here like the bolts might not have been tight, it always appeared to me that the sleeves were stamped, not cast.
Mike W.
1980 528i, 3.5 euro, 5 speed conversion
1981 528i, 3.6, Recaros and more. Project
1998 328is, quick and efficient, but not satisfying
2000 528iit, Vacation mobile/wife's grocery getter
Sorry to be so late, but, Don't forget to NOT remove the metal band that wraps around the guibo til you install & torque down every bolt. For some reason this adds mileage to the guibo job.
Also, a Grip trick; maybe alternate the bolt heads as you go; and, maybe tighten it like you do your wheel after the flat? Just a couple guess's there. Maybe inspect the position of the factory installed bolts before removing? Or, ask the stealership for some info? Remember, the factory guibo lasted 100k.
But, the metal band deal is a must!
