home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Reply
 
Thread Tools Display Modes
Old 05-06-2019, 10:52 AM   #1
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default 122 torque mount broke off

I had a pretty hard run yesterday in the local canyons.... then this happened this morning.

I glad it didn’t happen yesterday
https://imgur.com/a/FwQLn98
__________________
85 245 | 82 242| 75 245| 69 145 |66 122



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.
Jack is offline   Reply With Quote
Old 05-06-2019, 11:23 AM   #2
JohnMc
PV Abuser
 
JohnMc's Avatar
 
Join Date: May 2004
Location: St. Louis
Default

Hard to see what happened. Did the bracket break off the axle? Bolt fell out and the arm fell down?
__________________
'63 PV Rat Rod
'93 245 16VT Classic #1141
JohnMc is offline   Reply With Quote
Old 05-06-2019, 11:34 AM   #3
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

Bracket off the axle
Jack is offline   Reply With Quote
Old 05-06-2019, 11:35 AM   #4
planetman
Board Member
 
planetman's Avatar
 
Join Date: Apr 2012
Location: Torrance, CA
Default

Volvo knew!

http://volvo1800pictures.com/sb/4/4_...00%20P1800.htm
__________________
Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90502
planetman is offline   Reply With Quote
Old 05-06-2019, 11:38 AM   #5
JohnMc
PV Abuser
 
JohnMc's Avatar
 
Join Date: May 2004
Location: St. Louis
Default

I'd go bitch at the dealer. They clearly failed to send you the recall/warranty notice.
JohnMc is offline   Reply With Quote
Old 05-06-2019, 12:08 PM   #6
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

Quote:
Originally Posted by JohnMc View Post
I'd go bitch at the dealer. They clearly failed to send you the recall/warranty notice.
Quote:
Originally Posted by planetman View Post
Im calling VOLVO USA right now



got to check out a butt


there was no shopping carts there ....took that sign home




whats the order of poly bushings on those - large one goes on the back of the bracket and small on the front (facing the car)?
Jack is offline   Reply With Quote
Old 05-06-2019, 05:51 PM   #7
matt b
Board Member
 
Join Date: Apr 2007
Location: Tucson
Default

Oh you done messed up! That's a pretty clean break, hopefully you can reweld it easily.
matt b is offline   Reply With Quote
Old 05-06-2019, 06:01 PM   #8
R32RennSport
Outlaw Amazonian
 
R32RennSport's Avatar
 
Join Date: Nov 2011
Location: Atascadero, CA
Default

Dang, that's impressive, nice job!
__________________
Steven

1966 Volvo Amazon, 1968 Volvo Amazon Combi, 2004 VW R32 Golf
R32RennSport is offline   Reply With Quote
Old 05-07-2019, 10:19 AM   #9
240240
Cocaina space cowboy
 
240240's Avatar
 
Join Date: Mar 2013
Location: SoCal drift missle utopia
Default

Crush it
__________________
Quote:
Originally Posted by 240240 View Post
Any thread about cut springs, & or +T on a college students budget shall be sent to OT, flogged for 24 hours, participants in said thread shall point the OP in the correct thread link while simultaneously shaming them
Quote:
Originally Posted by Lando View Post
Shoot the poop!
240240 is offline   Reply With Quote
Old 05-07-2019, 03:31 PM   #10
122power
dude
 
122power's Avatar
 
Join Date: Feb 2009
Location: Where have all the quad squares gone? VV,Ca
Default

Tie that up with a shoelace and nurse home.
__________________
Post pics in Orhpan Thread or YOU will be banned.
122power is offline   Reply With Quote
Old 05-07-2019, 03:34 PM   #11
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

Quote:
Originally Posted by 122power View Post
Tie that up with a shoelace and nurse home.
pfft I haz zipties
Jack is offline   Reply With Quote
Old 05-08-2019, 11:01 AM   #12
IansPlatinum
Board Member
 
IansPlatinum's Avatar
 
Join Date: Jul 2018
Location: Texas
Default

wow. Looks like a silly design to me... subject to fatigue with that bushing design for sure.
automotive engineering was wack yo
No FEA back then
__________________
'96 854 Platinum - "Trusty"
'92 245 - "Boat"
'71 145 - "Rusty"

Previous:
'73 1800es - "Sunny"
'92 940T
'98 S70 T5
'99 S70 GLT
IansPlatinum is offline   Reply With Quote
Old 05-08-2019, 11:13 AM   #13
IansPlatinum
Board Member
 
IansPlatinum's Avatar
 
Join Date: Jul 2018
Location: Texas
Default

weld it, reinforce it, and shot peen it and it'll never break again
IansPlatinum is offline   Reply With Quote
Old 05-08-2019, 11:28 AM   #14
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

Quote:
Originally Posted by IansPlatinum View Post
wow. Looks like a silly design to me... subject to fatigue with that bushing design for sure.
automotive engineering was wack yo
No FEA back then
Stuff like that happens with modern cars

Quote:
Originally Posted by IansPlatinum View Post
weld it, reinforce it, and shot peen it and it'll never break again
Welding tonight maybe. Not had time.
Jack is offline   Reply With Quote
Old 05-08-2019, 11:35 AM   #15
IansPlatinum
Board Member
 
IansPlatinum's Avatar
 
Join Date: Jul 2018
Location: Texas
Default

Quote:
Originally Posted by Jack View Post
Stuff like that happens with modern cars
Shoddy engineering.
In theory, if you use steel and the amplitude of force doesn't often exceed the endurance limit stress, you have a part that'll never break from applied loads alone.

The catch is corrosion and damage that introduces a stress concentrator, etc.

Shot peening helps with all that, but would probably be inconvenient in this application

Unfortunately, a lot of engineers don't consider fatigue seriously enough when designing a part, because the cyclic loading may be unknown. Hey, it passed the FEA! That means it's good, right?
Sure, maybe for a while.

But then again, if the failure isn't catastrophic, then it's just another service item. Profit! $$$$$
IansPlatinum is offline   Reply With Quote
Old 05-08-2019, 11:40 AM   #16
sspony
Board Member
 
sspony's Avatar
 
Join Date: May 2012
Location: Maryland
Default

Do you think the IPD sway played into this at all? I know its good practice to reinforce some areas on the front suspension with the IPD bars. About to install the rear on my car and wondering if it played into this.
__________________
Potential, potential, potential....

65' 122s (weekend cruiser)
67' 122s (Rallyx racer)
82' 242 dl
83' 242 glt (v8 turbo swap project)
sspony is offline   Reply With Quote
Old 05-08-2019, 11:41 AM   #17
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

I disagree about engineering not considering fatigue but theory sometimes doesn’t work in real world. You cab have everything done right but the welder was hungover when installing a part etc

This is a 53 year old part.. **** happens no bid deal. Volvo redisegned the rear suspension in 1968
Jack is offline   Reply With Quote
Old 05-08-2019, 11:43 AM   #18
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

Quote:
Originally Posted by sspony View Post
Do you think the IPD sway played into this at all? I know its good practice to reinforce some areas on the front suspension with the IPD bars. About to install the rear on my car and wondering if it played into this.
For sure they did. So did poly bushings, age, design and my hard driving. It takes few min with a welder to reinforce the mount as shown in TSB, just play it safe and add the plates

Last edited by Jack; 05-08-2019 at 11:55 AM..
Jack is offline   Reply With Quote
Old 05-08-2019, 11:45 AM   #19
IansPlatinum
Board Member
 
IansPlatinum's Avatar
 
Join Date: Jul 2018
Location: Texas
Default

Quote:
Originally Posted by Jack View Post
You cab have everything done right but the welder was hungover when installing a part etc
I getchu but this is fatigue failure, based on the pics.
My paranoia of modern engineering design stems largely from seeing how many dumb ****s were in my graduating class for my B.S.M.E.
People I was like "How the **** did you make it through? I'm gonna die one day from your stupid ass design"
IansPlatinum is offline   Reply With Quote
Old 05-08-2019, 11:54 AM   #20
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

Ride a horse
Jack is offline   Reply With Quote
Old 05-08-2019, 12:00 PM   #21
IansPlatinum
Board Member
 
IansPlatinum's Avatar
 
Join Date: Jul 2018
Location: Texas
Default

Quote:
Originally Posted by Jack View Post
Ride a horse
I don't trust saddle engineers....
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
GONNA TAKE MY HORSE TO THE OLD TOWN ROAD< GONNA RIIIIIIDE TILL I CAINT NO MO
IansPlatinum is offline   Reply With Quote
Old 05-08-2019, 12:03 PM   #22
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

Jack is offline   Reply With Quote
Old 05-08-2019, 12:11 PM   #23
IansPlatinum
Board Member
 
IansPlatinum's Avatar
 
Join Date: Jul 2018
Location: Texas
Default

On a more serious note, what did it feel like when that torque mount broke?

Rear end wobbling? Steering went crazy? or just a real loud noise and subsequent dragging noise of torque rod
IansPlatinum is offline   Reply With Quote
Old 05-08-2019, 03:23 PM   #24
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

heard a skipping noise and immediately pulled over
Jack is offline   Reply With Quote
Old 05-08-2019, 03:39 PM   #25
R32RennSport
Outlaw Amazonian
 
R32RennSport's Avatar
 
Join Date: Nov 2011
Location: Atascadero, CA
Default

Speaking of stress fatigue I just snapped an aftermarket hollow rear swap bar on my Golf as I articulated through a steep driveway, luckily it let go at .5 mph and not while cornering on the track at who knows what speed. It's been on the car for 9 years, 9 very hard years and 75k miles. I've seen and or experienced my fair share of mechanical failures in my automotive career, most people have been seriously lucky SOBs!
R32RennSport 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 08:39 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.