240 drive shaft flex disc install

yamahapro · 11-15-2009, 05:22 PM

hey i installed a new flex disc on my drive shaft but it looks like its tearing and theres threads sticking out. i also get a big vibration on fast take off recently. i was wondering whats the correct way to install this. the drive shaft has 3 holes to bolt up to the tranny and the out put of the tranny has the same holes. theres also the flex disc and the metal piece with three holes that goes into the driveshaft. i am wondering what connects to what? i think i have it now as 3 bolts go through the driveshaft, bushing and then the little metal peice and the tranny has 3 bolts going through it but just goes through the bushing and thats it. is that correct?

holtzboy · 11-15-2009, 09:47 PM

You can see how mine was installed in my 242 here, this is actually not the correct orientation:

http://www.jacqui-of-all-trades.com/...o/242ti/guibo/

Here's the thread I had here:

http://forums.turbobricks.com/showthread.php?t=176495

If you goto page 2 of the thread Nils makes a diagram of the correct way to put it. There are arrows on the guibo that tell you which way to put the bolts, say the arrow is this way ( -> ) , you would have the head of the bolt on the left with the threads and nut on the right side.

yamahapro · 11-16-2009, 08:29 PM

i checked mine. all the bolts are tight and it looks like my flex disc is installed just like urs and mine is also ripping in that same place. but mine has threads coming out everywhere. i think the vibration is cuz the tranny mount is a sponge.

in your thread a guy said

other than the guibo being mounted the wrong way which caused it to be torn apart, everything looks normal. gearbox flange should be pushing against the thick part, not pulling on the thick part.

i dont get that! is the other side different?

and how does this make a difference?

Quote:

Originally Posted by Nils

[IMG]

[/IMG]
thats how it should be

holtzboy · 11-16-2009, 10:51 PM

Buy a new guibo or take yours off and you will see the arrows on it. Like I said the bolts will point the direction the arrows go. The arrows are setup in a triangular fashion just like the end of the driveshaft and the coupler/flange off of your transmission. So there's only two options when installing the guibo, right or wrong. Here is an ultra lame paint diagram:

Pretend that that's side ways and the engine is on the left and driveshaft is on the right.

Here is some more detailed info, its for a BMW but the same exact thing:

http://www.bokchoys.com/differential/diy_guibo.htm

Poik · 11-16-2009, 11:02 PM

If the transmission mount is bad, the guibo will not last long at all. My dad's transmission mount went out about 2 weeks ago, so I had to replace the mount as well as the guibo as it got torn up pretty good trying to act as a mount.

yamahapro · 11-17-2009, 12:54 AM

Ok I get how the bolts go if there's arrows but why would it matter? What's physically different about it?

yamahapro · 11-17-2009, 07:04 PM

mines installed how you say but its still ripping.

By volvopro, shot with iPhone 3GS at 2009-11-17

ZVOLV · 11-17-2009, 07:53 PM

Looks like you have the guide pin installed incorrectly and a set of bolts pointing the wrong way. I believe the guide pin is supposed to be bolted up to the tranny flange, not the driveshaft flange bolts.

I referred to VADIS and the Haynes manual. They both have diagrams.

yamahapro · 11-17-2009, 08:31 PM

Are u completely positive the guide pin goes the other way? And which bolts are backwards?

ZVOLV · 11-17-2009, 09:17 PM

Quote:

Originally Posted by yamahapro

Are u completely positive the guide pin goes the other way? And which bolts are backwards?

95% positive. I just did this a couple of weeks ago. Do you have a manual for your car yet?

yamahapro · 11-17-2009, 09:59 PM

A haynes manual, it blows. I want vadis.

holtzboy · 11-17-2009, 10:53 PM

Here's from that BMW site:

The arrows on the guibo will point towards the flange you connect the bolt to. The 3 that connect to the tranny flange will have the nut on the engine side. The 3 that connect to the driveshaft flange will have the nut on the opposite side.

The 3 red marked holes are for the driveshaft flange, the nuts will be on the red marked side.

Notice how the orientation and 'raised up' portions of the guibo is the same in the bmw picture and my picture. Be sure to change your tranny mount unless you know for sure its newish.

yamahapro · 11-17-2009, 11:06 PM

ok so mines right there. now which way is the guide pin supposed to go?

brant · 11-18-2009, 12:35 AM

Is it just me, or are your arrows on the guibo pointing the wrong way?
Edit: nevermind looking at the wrong arrows.

Will having this orientated wrong cause this vibration? If so, I might have mine flipped to..

tjanson · 11-18-2009, 02:30 PM

yamahapro · 11-18-2009, 03:06 PM

Ok so it does bolt up the tranny flange. Thanks

holtzboy · 11-22-2009, 07:36 PM

Quote:

Originally Posted by tjanson

Where did you find that pic and is there a part number for #17 the "centering sleeve?"

yamahapro · 11-22-2009, 08:08 PM

thats a vadis blow up pic. i replaced that bushing on my car. wasnt cheap

ZVOLV · 11-22-2009, 08:24 PM

Quote:

Originally Posted by holtzboy

Where did you find that pic and is there a part number for #17 the "centering sleeve?"

it's already pressed into the driveshaft for manual trannys.

holtzboy · 11-22-2009, 08:46 PM

Quote:

Originally Posted by ZVOLV

it's already pressed into the driveshaft for manual trannys.

Doh, no wonder why I have never seen it. So this is it inside?!

yamahapro · 11-22-2009, 09:27 PM

ZVOLV · 11-22-2009, 10:31 PM

yamahapro · 12-16-2009, 06:00 PM

OK well my guibo came off my driveshaft on the road and now i KNOW why you HAVE to install it the right way. first of all if your tranny mount is gushy it will cause the guibo to fail with torque. the first time mine failed it made the driveshaft completely fall off but this time BECAUSE i installed it right the bushing fell off BUT the driveshaft stayed connected to the tranny!!! saving all those parts!! so make sure you install it exactly like it says. temporarily i am using a nissan 240 guibo until i order a bunch of parts from fcp!

holtzboy · 12-16-2009, 06:42 PM

I always purchase stuff from FCP but I highly suggest NOT to buy the "URO" branded guibo from them:

http://www.fcpgroton.com/product-exe...ategory_id/103

Instead get a Febi guibo from eEuroparts or whichever else site you can find it at:

http://www.eeuroparts.com/Main/PartD...spx?id=1220843

ZVOLV · 12-16-2009, 08:54 PM

I hang em on my wiener and steal em from the junkyard.

11-15-2009, 09:47 PM	#2
holtzboy Still have my first car Join Date: Mar 2004 Location: Cornelius, OR	You can see how mine was installed in my 242 here, this is actually not the correct orientation: http://www.jacqui-of-all-trades.com/...o/242ti/guibo/ Here's the thread I had here: http://forums.turbobricks.com/showthread.php?t=176495 If you goto page 2 of the thread Nils makes a diagram of the correct way to put it. There are arrows on the guibo that tell you which way to put the bolts, say the arrow is this way ( -> ) , you would have the head of the bolt on the left with the threads and nut on the right side. __________________ 1. '86 244DL- 1st car & owned for 18 years, 500k miles, 94 B230FT mild build in the works 2. '93 244DL - Daughter's DD, mostly stock with Hydras 3. '07 Vette Z06 - Early mid-life crisis vehicle 4. '17 CRV - Boring DD My feedback thread

11-16-2009, 11:02 PM	#5
Poik Backwards Turbo Join Date: Feb 2005 Location: Göteborg, Sweden	If the transmission mount is bad, the guibo will not last long at all. My dad's transmission mount went out about 2 weeks ago, so I had to replace the mount as well as the guibo as it got torn up pretty good trying to act as a mount. __________________ Eric Olsson's 242 Turbo \| 245 DL \| ~~744 Turbo~~

11-17-2009, 07:04 PM	#7
yamahapro Turbonetics power! Join Date: Sep 2008 Location: Oxnard	mines installed how you say but its still ripping. By volvopro, shot with iPhone 3GS at 2009-11-17 By volvopro, shot with iPhone 3GS at 2009-11-17 By volvopro, shot with iPhone 3GS at 2009-11-17 By volvopro, shot with iPhone 3GS at 2009-11-17

11-17-2009, 07:53 PM	#8
ZVOLV <Master Tech> Join Date: Nov 2002 Location: California	Looks like you have the guide pin installed incorrectly and a set of bolts pointing the wrong way. I believe the guide pin is supposed to be bolted up to the tranny flange, not the driveshaft flange bolts. I referred to VADIS and the Haynes manual. They both have diagrams. __________________ No Start Thread

11-18-2009, 12:35 AM	#14
brant Rusting Join Date: Mar 2007 Location: Marinette, WI	Is it just me, or are your arrows on the guibo pointing the wrong way? Edit: nevermind looking at the wrong arrows. Will having this orientated wrong cause this vibration? If so, I might have mine flipped to.. __________________ 1971 145 S WHITE 1989 744T RED 1998 V70R-M BLACK This car sucks 2002 V70XC BLUE Last edited by brant; 11-18-2009 at 12:42 AM..

11-15-2009, 05:22 PM	#1
yamahapro Turbonetics power! Join Date: Sep 2008 Location: Oxnard	drive shaft flex disc install hey i installed a new flex disc on my drive shaft but it looks like its tearing and theres threads sticking out. i also get a big vibration on fast take off recently. i was wondering whats the correct way to install this. the drive shaft has 3 holes to bolt up to the tranny and the out put of the tranny has the same holes. theres also the flex disc and the metal piece with three holes that goes into the driveshaft. i am wondering what connects to what? i think i have it now as 3 bolts go through the driveshaft, bushing and then the little metal peice and the tranny has 3 bolts going through it but just goes through the bushing and thats it. is that correct?

11-16-2009, 10:51 PM	#4
holtzboy Still have my first car Join Date: Mar 2004 Location: Cornelius, OR	Buy a new guibo or take yours off and you will see the arrows on it. Like I said the bolts will point the direction the arrows go. The arrows are setup in a triangular fashion just like the end of the driveshaft and the coupler/flange off of your transmission. So there's only two options when installing the guibo, right or wrong. Here is an ultra lame paint diagram: Pretend that that's side ways and the engine is on the left and driveshaft is on the right. Here is some more detailed info, its for a BMW but the same exact thing: http://www.bokchoys.com/differential/diy_guibo.htm

11-17-2009, 12:54 AM	#6
yamahapro Turbonetics power! Join Date: Sep 2008 Location: Oxnard	Ok I get how the bolts go if there's arrows but why would it matter? What's physically different about it?

11-17-2009, 08:31 PM	#9
yamahapro Turbonetics power! Join Date: Sep 2008 Location: Oxnard	Are u completely positive the guide pin goes the other way? And which bolts are backwards?

11-17-2009, 09:59 PM	#11
yamahapro Turbonetics power! Join Date: Sep 2008 Location: Oxnard	A haynes manual, it blows. I want vadis.

11-17-2009, 10:53 PM	#12
holtzboy Still have my first car Join Date: Mar 2004 Location: Cornelius, OR	Here's from that BMW site: The arrows on the guibo will point towards the flange you connect the bolt to. The 3 that connect to the tranny flange will have the nut on the engine side. The 3 that connect to the driveshaft flange will have the nut on the opposite side. The 3 red marked holes are for the driveshaft flange, the nuts will be on the red marked side. Notice how the orientation and 'raised up' portions of the guibo is the same in the bmw picture and my picture. Be sure to change your tranny mount unless you know for sure its newish.

11-17-2009, 11:06 PM	#13
yamahapro Turbonetics power! Join Date: Sep 2008 Location: Oxnard	ok so mines right there. now which way is the guide pin supposed to go?

11-18-2009, 02:30 PM	#15
tjanson Board Member Join Date: Apr 2004 Location: Underhill, VT	__________________ 1993 245 DL; LH2.4, M47 - DD & Winter Beater 1978 242 GT - To Be Restored, someday 1993 245 DL - OEM+ Project

11-18-2009, 03:06 PM	#16
yamahapro Turbonetics power! Join Date: Sep 2008 Location: Oxnard	Ok so it does bolt up the tranny flange. Thanks

11-22-2009, 08:08 PM	#18
yamahapro Turbonetics power! Join Date: Sep 2008 Location: Oxnard	thats a vadis blow up pic. i replaced that bushing on my car. wasnt cheap

11-22-2009, 09:27 PM	#21
yamahapro Turbonetics power! Join Date: Sep 2008 Location: Oxnard	yes

11-22-2009, 10:31 PM	#22
ZVOLV <Master Tech> Join Date: Nov 2002 Location: California	Yep

12-16-2009, 06:00 PM	#23
yamahapro Turbonetics power! Join Date: Sep 2008 Location: Oxnard	OK well my guibo came off my driveshaft on the road and now i KNOW why you HAVE to install it the right way. first of all if your tranny mount is gushy it will cause the guibo to fail with torque. the first time mine failed it made the driveshaft completely fall off but this time BECAUSE i installed it right the bushing fell off BUT the driveshaft stayed connected to the tranny!!! saving all those parts!! so make sure you install it exactly like it says. temporarily i am using a nissan 240 guibo until i order a bunch of parts from fcp!

12-16-2009, 06:42 PM	#24
holtzboy Still have my first car Join Date: Mar 2004 Location: Cornelius, OR	I always purchase stuff from FCP but I highly suggest NOT to buy the "URO" branded guibo from them: http://www.fcpgroton.com/product-exe...ategory_id/103 Instead get a Febi guibo from eEuroparts or whichever else site you can find it at: http://www.eeuroparts.com/Main/PartD...spx?id=1220843

12-16-2009, 08:54 PM	#25
ZVOLV <Master Tech> Join Date: Nov 2002 Location: California	I hang em on my wiener and steal em from the junkyard.