home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Reply
 
Thread Tools Display Modes
Old 08-16-2018, 01:50 PM   #1
dorvin
idunno
 
dorvin's Avatar
 
Join Date: Sep 2016
Location: Chicago / Minnesota
Default Something broke free in driveshaft?

Hi all,

I've been on a conquest getting my driveshaft carrier bearing replaced for the past few weeks. I farmed out getting the bearing replaced, and the first time, the shop destroyed the dust cover in the process, and I had to wait a few weeks for a replacement to arrive from Sweden. Yesterday, I finally brought the driveshaft back to the shop, dust cover in hand. I was at work when they called, so my girlfriend picked up the driveshaft from them, and I got home after they had closed for the day.

Come to find out, they ignored the marks I provided to line up the splines, and seemingly pounded it in as best they could. I could not pull the two parts apart to realign them, ended up bringing it back to them, and they used an air hammer to get them apart. It appears '93 driveshafts for 240s may be keyed.. I saw a few mentions of 900 series driveshafts being keyed in '93 on, but that practice may have made it's way into 240s near the end.

There was some light scuffs made to two of the splines, but luckily it still fit together smoothly when lined up correctly. Unfortunately, after getting the shaft back together with a new rubber support, I noticed a clanging when handling the driveshaft..



It appears something has broken free in the tube. Has anyone heard of this happening before? The object is too large to be removed, and clangs around when rotating the shaft. Aside from this potentially throwing off the balance of the shaft, I imagine it's going to make a racket going down the road. Am I in the market for a new driveshaft at this point?
__________________
'77 Oldsmobile Cutlass Supreme
'81 VW Rabbit
'91 Volvo 740
'93 Volvo 240 - 683/1600

Last edited by dorvin; 08-16-2018 at 02:28 PM..
dorvin is offline   Reply With Quote
Old 08-16-2018, 02:46 PM   #2
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

I bet is a Swedish penny. Call Volvo corporate
__________________
85 245 | 82 242| 75 245| 69 145 |66 122| 67 220




Quote:
Originally Posted by paul buck View Post
I love you even more Jack.
Quote:
Originally Posted by BritishBrick
Don’t bother, I would literally rather throw them away than give you the pleasure. I will never sell to you.
Quote:
Originally Posted by Tuesday View Post
I expect nothing less from an incel like you, Jack.
Jack is offline   Reply With Quote
Old 08-16-2018, 03:19 PM   #3
VB242
They're boxy but good!
 
VB242's Avatar
 
Join Date: Sep 2011
Location: See my real-time location on Maps: https://maps.app.goo.gl/xiryhjZzwpSvTtnn6
Default

Shoot some silicone down there and try to center the swedish penny. Turin up and wait for it to dry. I've never heard of anything like that though. Maybe try to shake it out, it must have went in somehow.
__________________
"Over the hump of Truth and through the flaming hoop!"
-S.B. Squarepants
VB242 is offline   Reply With Quote
Old 08-16-2018, 03:33 PM   #4
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

Quote:
Originally Posted by VB242 View Post
Shoot some silicone down there and try to center the swedish penny. Turin up and wait for it to dry. I've never heard of anything like that though. Maybe try to shake it out, it must have went in somehow.
long needle nose pliers


maybe he won a free trip to Swedish fish candy factory. Hopefully the winning cake is still good

Last edited by Jack; 08-16-2018 at 11:24 PM..
Jack is offline   Reply With Quote
Old 08-17-2018, 02:03 PM   #5
EivlEvo
Board Member
 
Join Date: Sep 2012
Default

Telescoping magnet? Are you able to even get a look at it?
EivlEvo is offline   Reply With Quote
Old 08-18-2018, 12:51 PM   #6
dorvin
idunno
 
dorvin's Avatar
 
Join Date: Sep 2016
Location: Chicago / Minnesota
Default

Well, what I could get a look at, it was thin like a washer, and had a little hole drilled in the middle.

Unfortunately, due to time constraints, and needing to drive about 1000 miles Thursday night through Friday, I installed the driveshaft with that loose in there. It makes a racket when driving under 20, kinda like I'm dragging a wrench through the dirt, but above those speeds, it quiets down. Thankfully it doesn't cause any nasty vibrations going down the road.

I have this week off from work, so once I'm back from this wedding, I'll likely drop the driveshaft again and try to get it out of there.

Last edited by dorvin; 08-18-2018 at 12:58 PM..
dorvin is offline   Reply With Quote
Old 08-18-2018, 04:06 PM   #7
tintintin
Board Member
 
Join Date: Sep 2012
Default

Reminds me of the pressfit "cap" in the 7xx/9xx series driveshafts, mentioned in this FAQ from brickboard.com:

https://www.brickboard.com/FAQ/700-9...ingReplacement

(He's explaining about a possible pitfall when removing the carrier bearing via alternate method-- when no press is available.)

"...[CAUTION from Stephan Brendler] On my '94 Volvo 940 wagon (European spec. B230FB with M47 manual transmission; driveshaft with rubber-cuppling , center support bearing and two u-joints) there is a cap inside the driveshaft separating the forward 'pipe-section' of the shaft and the splined portion. This cap is installed in a relatively loose pressfit inside the driveshaft. Identification of this cap is simple - it has a small bore (about 3 mm) in its center. If you use the puller as described above and you push this cap back into the driveshaft, there is no way other than to cut open the driveshaft to get this thing out. If left there it will wiggle forever and possibly cause an imbalance..."

Might the 2xx series driveshaft have a similar pressfit "cap?"

Could the shop have inadvertantly dislodged the cap and that is what is rattling inside yours?
tintintin is offline   Reply With Quote
Old 08-19-2018, 12:04 AM   #8
dorvin
idunno
 
dorvin's Avatar
 
Join Date: Sep 2016
Location: Chicago / Minnesota
Default

Quote:
Originally Posted by tintintin
Could the shop have inadvertantly dislodged the cap and that is what is rattling inside yours?
Considering they used an air hammer to get the two pieces apart after they pounded them together incorrectly, this is likely the case.. Bummer.
dorvin is offline   Reply With Quote
Old 08-20-2018, 04:28 AM   #9
MasterBlaster
Board Member
 
Join Date: Feb 2009
Location: Port Coquitlam
Default

My theory: It''s probably there to keep any excess spline grease from getting into the hollow shaft and settling in one spot, which would cause a vibration. Tiny hole in the middle lets air pass through as the shaft extends and retracts in use, while being high enough to be away from the grease. If the shop was "helpfully" trying not to damage the end of the splined hole, they might have shoved a 3-arm puller's forcing screw into the hole and pushed against the disk instead, just like pulling off some harmonic balancers.

As suggested, try gluing it in place, try to get it out and clean/reglue/reinsert it, see if it expands in place like a freeze (Welch) plug, or get creative and figure out what size chunk of dense foam you can carve into a sorta roundish mini-hockey-puck, to stuff down there, and shape it so it expands just past the inner ends of the splines to lock it in place, *and* hold the disk snug.
__________________



1990 740GL, now in extra-small economy size.
488,000 km so far...
MasterBlaster is offline   Reply With Quote
Old 08-20-2018, 05:57 PM   #10
dl242gt
Happy playing the blues
 
dl242gt's Avatar
 
Join Date: Jun 2002
Location: S NJ, a suburb of Phila.
Default

My 93 245 drive shaft only goes together one way. Seems to me their mongo treatment broke free what is described above. Maybe go with glue it and that should take care of it?
dl242gt is online now   Reply With Quote
Old 08-21-2018, 07:19 PM   #11
jjh242t
Board Member
 
Join Date: Aug 2004
Location: Middletown, CT
Default

My experience with the '93 driveshaft being keyed is the same, which is good since there are no factory marks. I did try to make my own when I had to replace the bearing, but the keying is a nice feature.
jjh242t is offline   Reply With Quote
Old 07-30-2019, 05:29 AM   #12
kingkong
Board Member
 
kingkong's Avatar
 
Join Date: Jan 2017
Location: France
Default

Hello Dorvin,

Have you managed to pull the cup out in the end?
I am in the exact same boat and after playing fishing with a magnet for hours, it's driving me nuts.
Either a way to press it back in its original place, or a way to take it out?
Thanks.
kingkong is offline   Reply With Quote
Old 07-30-2019, 09:39 AM   #13
dorvin
idunno
 
dorvin's Avatar
 
Join Date: Sep 2016
Location: Chicago / Minnesota
Default

Quote:
Originally Posted by kingkong View Post
Hello Dorvin,

Have you managed to pull the cup out in the end?
I am in the exact same boat and after playing fishing with a magnet for hours, it's driving me nuts.
Either a way to press it back in its original place, or a way to take it out?
Thanks.
I never did. I actually sourced out another driveshaft from a user on here that went to a T5 manual transmission. I have yet to install that driveshaft, it taunts me every time I'm in the garage. I've just been putting up with the jingle..
dorvin is offline   Reply With Quote
Old 07-30-2019, 12:23 PM   #14
kingkong
Board Member
 
kingkong's Avatar
 
Join Date: Jan 2017
Location: France
Default

Well, expanding foam it is then

kingkong is offline   Reply With Quote
Old 07-30-2019, 12:26 PM   #15
dorvin
idunno
 
dorvin's Avatar
 
Join Date: Sep 2016
Location: Chicago / Minnesota
Default

Interesting, let me know how it works for you! Are you planning on just cutting out the foam that expanded into the grooves?
dorvin is offline   Reply With Quote
Old 07-31-2019, 04:10 PM   #16
kingkong
Board Member
 
kingkong's Avatar
 
Join Date: Jan 2017
Location: France
Default

Exactly.
Foam is curing as we speak. My new bearing is on its way. I will tell you how it turns out in a few days.
kingkong is offline   Reply With Quote
Old 08-19-2019, 04:10 PM   #17
kingkong
Board Member
 
kingkong's Avatar
 
Join Date: Jan 2017
Location: France
Default

Foam didn't work. As soon as i removed the cured foam around the grooves, i noticed it was all soft on the inside. Maybe it didn't have enough fresh air to cure inside.
I gave it some good shakes, and the cap finally made noise again.
I ended up swaping another rear shaft in. All is good now.
kingkong is offline   Reply With Quote
Old 02-03-2020, 07:07 PM   #18
SlickNerd
Board Member
 
SlickNerd's Avatar
 
Join Date: Dec 2010
Location: In the Great Lakes State yall
Question

That little cap is welded to the back of the splines to help keep dirt and large particles from building up in the shaft. Also the hole is for air to expand and contract as you move the shaft dueing use since it's a precision fit. It gets welded to the back of the splines then the splines get welded to the shaft. And on the other end the yoke is welded to the other side.

From your story. It sounds like they tried to use a bearing puller instead of a good proper press. Thus the puller punched the little cap loose. It WILL NOT throw off balance being inside but will make some tings at low speed due to not enough centrifugal force like higher speed. But filling it needlessly with foam will most likely cause an imbalance.

This "SHOP" sounds like hacks.

Hope this helps.
__________________
For Sale thread:
http://forums.turbobricks.com/showthread.php?t=299819

Factory upgrades progress thread for a 1991 Volvo 244. Check it out guys!
http://forums.turbobricks.com/showthread.php?t=250660

Seller feedback. Leave some please! wish I had added this link a long time ago.
http://forums.turbobricks.com/showth...ight=slicknerd
SlickNerd is offline   Reply With Quote
Old 02-03-2020, 07:35 PM   #19
Otto Mattik
Board Member
 
Otto Mattik's Avatar
 
Join Date: Dec 2015
Location: Upper Midwest..more or less
Default

https://www.ebay.com/itm/NON-MAGNETI...R/223456267268
__________________
Quote:
Originally posted by Jack
You talk about parts cannon but you throw the Obamacare diagnostic tool orgy onto this like it's a cloned embryo of baby Jesus
_________________________

Desperate need of elf assistant for interior work - Cash/Beer option $


Feedback Link: http://forums.turbobricks.com/showthread.php?t=323689
Otto Mattik is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 07:09 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.