WHY you need to be sure the guibo nuts/bolts are tight...

[Randy Forbes]

Came across this one recently...











NO XMSN yokes in the US, only twenty-four (24) in Germany, and even with expediting the shipping, still a couple weeks out.

[325bob]

Came across this one recently...











NO XMSN yokes in the US, only twenty-four (24) in Germany, and even with expediting the shipping, still a couple weeks out.

Randy, doesn't your Home Depot have JB WELD!?

[rf900rkw]

I assume the centering bearing is in less than ideal condition, also.

[Bear Grylls]

Guess I will be checking this this weekend. Now I'm scared lol

Sent from my Nexus 4 using BF.com

[Randy Forbes]

I assume the centering bearing is in less than ideal condition, also.

Spot on, as always!

[rf900rkw]

I'll bet it's got a good sound system in it, too. It would need it to drown out that noise.

[Randy Forbes]

I'll bet it's got a good sound system in it, too. It would need it to drown out that noise.

When you're hot, you're hot...

[PbFut]

It's the little things, like correct bolt torque that, can cause such major problems down the road. Funny how that is.

[E.Hands]

More nuggets of gold information from the Randys. Thanks for the heads up guys!

[moonvan]

Luckily I haven’t had this issue but I’ve always been paranoid about torquing guibo bolts after seeing all the destroyed guibos from over torquing. Now I have a whole new level of paranoia about it.

[Aw0802]

so how many lbs of torque should we put on the guibo? also anyone try the PU style guibo? like this one: http://www.ebay.com/itm/200934279902...84.m1423.l2649, thanks

[MTRD3]

so how many lbs of torque should we put on the guibo? also anyone try the PU style guibo? like this one: http://www.ebay.com/itm/200934279902...84.m1423.l2649, thanks

Is that guibo actually specific to the M coupes or do you think the 3.0i was simply not listed due to it's rarity in the U.S.?

[Donlundm3]

Thanks Randy, just got my guibo off this morning, and can happily report it has no issues. Rear trunk floor doesn't look too bad either, only 2 bad welds on the right and 3-4 bad ones around the diff. ear. No cracking anywhere, but it was a real pita to remove all the insulation, etc. from the wheel houses and behind the seats. Glad I'll never have to do that again.

[Bimjam96]

Same exact conditions on my old 2002 I used to have. Bolt was rubbed raw down to the last mm of life and the tranny flange had the nice bean shape as yours too. The issue I ran into was finding an impact narrow enough to fit into the flange. Ended up just grinding down an old chrome socket and hoping it wouldn't shatter. And yea as far as the sound system goes it's quite the loud obnoxious mess coming from the tranny tunnel

[Wojtek79]

That is dedication right there working on New Year's Eve Randy.

[Randy Forbes]

so how many lbs of torque should we put on the guibo? also anyone try the PU style guibo? like this one: http://www.ebay.com/itm/200934279902...84.m1423.l2649, thanks

Not for me, thank you; a little bit of compliance is a good thing. That may be okay for a race/track car, but I personally wouldn't put it to use on a street car__despite claims to the contrary.

Thanks Randy, just got my guibo off this morning, and can happily report it has no issues. Rear trunk floor doesn't look too bad either, only 2 bad welds on the right and 3-4 bad ones around the diff. ear. No cracking anywhere, but it was a real pita to remove all the insulation, etc. from the wheel houses and behind the seats. Glad I'll never have to do that again.

Hi Don, Happy New Year!

The Coupes are a bit more of a pain than a Rdstr, but the upside will be when you get to the inside welding__A LOT more room to work! Just be sure to protect the headliner and side glass from welding and grinding sparks. 3M makes a tacking (self-adhering) treated paper barrier for just such a purpose; I used it initially, but prefer my welding blanket "tent" to protect customer cars. Same precaution about overspray mist too, though some colors are worse than others, especially the lacquer formulas.

Have fun, take your time__especially if the plastic trim bits are cold (-9* this morning in Ohio, sure am thankful to be in Florida!).

That is dedication right there working on New Year's Eve Randy.

New Year's Day too, though on a different project

You know what they say, do what you love, and it doesn't feel like working! Now if I could just come to terms with the billing aspect...

[rf900rkw]

Not for me, thank you; a little bit of compliance is a good thing. That may be okay for a race/track car, but I personally wouldn't put it to use on a street car__despite claims to the contrary.

+1

Rubber suspended street car engines move arouind. A lot. Rear subframe/diff units move around. Unibodies flex. The alignment and distance between the trans, diff, and driveshaft is constantly changing. The guibo absorbs these movements. If you take the flex out of the flex-disc, the movement and loads will be restrained by the transmission and diff bearings.

[alboogiee]

Sadly this is my coupe other then a bit if noise that I thought was transmission related I had no indication of this. Glad my coupe is in good hands though! Thank you Randy!

[Randy Forbes]

The parts haven't come in yet, but wanted to get a head start on getting the xmsn yoke off__I knew it was going to be trouble...

While the gearbox was still in the car, I couldn't hold the yoke and loosen the nut, but only gave it a hint of an attempt. I could tell someone else had already been there, as the nut was gouged up. My IR impact wrench was having zero effect on loosening the nut, so I knew I'd have to break out the heavy artillery...

I spent five (>5) hours yesterday making a suitable tool to hold the yoke while I undid the nut. At least now I have the tool for future work__add it to the one-use tool collection!

If you want to make your own, the pictures showing the process start about halfway down this page: http://www.spcarsplus.com/gallery3/i...H-Coupe?page=7

Start with equal parts RTA bolts (left over__and tumbled clean__from Ireland adjustable kit installs):



Mix in some milling and welding:



Apply muscle__and even with this mechanical advange, it was STILL TOO G% D*#$ TIGHT!!



Revel in the delight of success!

[Wertles]

Since it appears that someone had been there before, do you think that a previous guibo nut was left loose and caused the damage? Someone then tried unsuccessfully to fix it, and slapped a new guibo and bolt in there or was it this set of bolts that caused the damage?

I'm pretty sure I would have given up long ago and sourced another transmission. As always, you are the man.

[325bob]

Randy, did you try the West Virginia blue flame wrench?, a new seal is going in anyway, I hope?, actually I would've brazed and redrilled that hole, but I'm lazy.

[alboogiee]

Since it appears that someone had been there before, do you think that a previous guibo nut was left loose and caused the damage? Someone then tried unsuccessfully to fix it, and slapped a new guibo and bolt in there or was it this set of bolts that caused the damage?

I'm pretty sure I would have given up long ago and sourced another transmission. As always, you are the man.

I emailed with the previous owner about it and he thinks it was a BMW dealer in SC that did not replace the bolts when the guibo was replaced. I've got to check my/his records to see what was and wasn't billed. The job probably happened between 92-94k miles and the coupe had a touch over 101k now. After hearing about the PO's experiences with this dealer and work performed, I wouldn't be surprised if it was sheer laziness that had led to this.

Randy, thank you for taking the time to construct the tool and work it all out! I can't imagine what would've happened under the knife of a lesser mechanic. I'm very thankful that you caught this and we're able to work my coupe into your schedule.

[Randy Forbes]

I emailed with the previous owner about it and he thinks it was a BMW dealer in SC that did not replace the bolts when the guibo was replaced. I've got to check my/his records to see what was and wasn't billed. The job probably happened between 92-94k miles and the coupe had a touch over 101k now. After hearing about the PO's experiences with this dealer and work performed, I wouldn't be surprised if it was sheer laziness that had led to this.

Randy, thank you for taking the time to construct the tool and work it all out! I can't imagine what would've happened under the knife of a lesser mechanic. I'm very thankful that you caught this and we're able to work my coupe into your schedule.

And I'm not even charging you for the time__unless you want to keep the tool. In that case, taking into account design, engineering, materials and machinery time: $8,000.00 (and I'll throw in the clutch job for free)

[alboogiee]

And I'm not even charging you for the time__unless you want to keep the tool. In that case, taking into account design, engineering, materials and machinery time: $8,000.00 (and I'll throw in the clutch job for free)

[bry195]

off topic but for you.