ovaling of the rear suspention ear, +installation tips on rear susp bushings |
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ovaling of the rear suspention ear, +installation tips on rear susp bushings |
ChrisReale |
Jan 30 2003, 07:40 PM
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#1
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Sleazy Group: Members Posts: 2,665 Joined: 20-January 03 From: San Francisco Member No.: 176 |
I fear my right rear suspention ear has been ovaled due to rubbing of the trailing arm shaft and the ear. With the rear jacked up I can move the wheel back and forth. Not much, but I see the trailing arm moving at the ear. I want to catch this before it gets more serious. How much would it cost to fix the ear hole? Is this something I can do in my garage, or should I let the pro's do it? I "might" have access to a welder, but I dont have access to experience.... :toilet:
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Bleyseng |
Jan 30 2003, 08:05 PM
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#2
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Aircooled Baby! Group: Members Posts: 13,036 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
The oval shape is supposed to be there, Chris. Part of the autochamber adjusting feature if I remember correctly.
I can bring my MIG welder and mini grinder but you are going to have to find a ream the right size for the hole. Try Hardwicks off Roosevelt Ave and 42 ave NE as they seem to have damn near everything else. Did you squeeze Dave's 914 into the other bay in your garage? If I drag my welder around I want to do the passenger floor pan at the same time on his car. Where are you buying me dinner at if I come over? I got one week left......free. Geoff (IMG:style_emoticons/default/beerchug.gif) |
ChrisReale |
Jan 30 2003, 08:15 PM
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#3
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Sleazy Group: Members Posts: 2,665 Joined: 20-January 03 From: San Francisco Member No.: 176 |
If it is supposed to be oval, why is there movement at the nut and shaft? Dave's car is not here yet. I am cleaning out the garage this weekend, so sometime next week it will be there. If your girlfriend comes home before the welding gets done, maybe you can sneak out... (IMG:style_emoticons/default/ph34r.gif)-style
You like burrito's? Taqueria Guymas in West Seattle junction is awsome. Carne Asada burrito, a Pacifico cervesa, a side of fresh salsa verde..... (IMG:style_emoticons/default/clap56.gif) |
Dave Cawdrey |
Jan 30 2003, 08:45 PM
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#4
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Dumbo going poop, Daddy :) Group: Members Posts: 818 Joined: 22-January 03 From: Seattle, WA USA Member No.: 182 |
Well, my dad finally caved. I moved the 914 today. Found out, my dad is cleaning out our garage for me (IMG:style_emoticons/default/clap56.gif) (IMG:style_emoticons/default/clap56.gif) , and the Porsche goes in there soon.
Thanks again, Chris. I think your generosity has made my dad second guess his actions (IMG:style_emoticons/default/wink.gif) |
Bleyseng |
Jan 30 2003, 09:20 PM
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#5
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Aircooled Baby! Group: Members Posts: 13,036 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Hey, if I have to drag the welder to Fremont to weld your floor you gonna buy dinner from Pesao that Carribean place??
Food is what gets me to do stuff..... Geoff (IMG:style_emoticons/default/beer.gif) |
Dave_Darling |
Jan 30 2003, 10:43 PM
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#6
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914 Idiot Group: Members Posts: 15,062 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
One thing I've heard of people doing in this circumstance is welding a hardened washer over the now-ovaled hole. I don't recall if the hole in the washer is then reamed to size, or if it is left as-is.
--DD |
ChrisReale |
Jan 30 2003, 11:23 PM
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#7
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Sleazy Group: Members Posts: 2,665 Joined: 20-January 03 From: San Francisco Member No.: 176 |
Thanks for the tip Dave.
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Brad Roberts |
Jan 30 2003, 11:47 PM
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#8
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
The washer ends up not allowing your "lock nut" to lock. Not enough threads. The only people doing this are the ones who dont fix it correctly by welding it up and reaming it to size. The nut has its locking portion at the very end of the nut. You would end up with a rounded out washer in a few months.
B |
Dave Cawdrey |
Jan 31 2003, 12:21 AM
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#9
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Dumbo going poop, Daddy :) Group: Members Posts: 818 Joined: 22-January 03 From: Seattle, WA USA Member No.: 182 |
(IMG:style_emoticons/default/smash.gif) Lock-tite!!! Thats what we did on mine, for the tow. Might only be temp.
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Tony C |
Jan 31 2003, 12:24 AM
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#10
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Master of Fire and Metal Group: Members Posts: 273 Joined: 27-December 02 From: Bay Area, CA, USA, Earth Member No.: 25 |
The "proper" way to fix it is to weld the hole and re-drill it. See the two pics below. This is what happens when you have 400ftlbs of torque and improperly installed poly bushings!
before (IMG:http://www.tcdesignfab.com/9148-12.jpg) and after (IMG:http://www.tcdesignfab.com/9148-7.jpg) -Tony |
Brad Roberts |
Jan 31 2003, 12:31 AM
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#11
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Tony (in my redneck dialec) what kind a shiny heat exchangers are those next to the warbled out hole ?? Them there sure is pretty.
I'm leaving tomorrow at 9:30 am. B |
Tony C |
Jan 31 2003, 12:35 AM
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#12
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Master of Fire and Metal Group: Members Posts: 273 Joined: 27-December 02 From: Bay Area, CA, USA, Earth Member No.: 25 |
Them there's are the Hooker Header heat exchangers!
I will try and be there by 9:30 to give you the 993 stuff, give or take a few Starbucks minutes. -TC |
Bleyseng |
Jan 31 2003, 12:57 AM
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#13
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Aircooled Baby! Group: Members Posts: 13,036 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Looks like you need to git reamed, Chris....lots of fun welding that kind of stuff too and the grinding is the good part!
Better start lookin for that ream! I don't think I wanna try drilling that out with a Hole Hawg as it looks like a knuckle buster. Geoff |
Tony C |
Jan 31 2003, 09:35 AM
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#14
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Master of Fire and Metal Group: Members Posts: 273 Joined: 27-December 02 From: Bay Area, CA, USA, Earth Member No.: 25 |
A Unibit works great, it is nice and short and will provide a nice clean, burr free hole.
-Tony |
Bleyseng |
Jan 31 2003, 10:12 AM
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#15
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Aircooled Baby! Group: Members Posts: 13,036 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Thanks Tony!
Geoff |
cha914 |
Jan 31 2003, 10:50 AM
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#16
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MUSR 8 - 5lug conversion done wed - drive 500miles thrus Group: Members Posts: 739 Joined: 31-December 02 From: Austin, TX Member No.: 63 |
so, how does one install poly bushings incorrectly that makes this happen?
-Tony who is now parinoid after installing his new poly bushings |
Tony C |
Jan 31 2003, 12:14 PM
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#17
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Master of Fire and Metal Group: Members Posts: 273 Joined: 27-December 02 From: Bay Area, CA, USA, Earth Member No.: 25 |
The poly bushings are too long and do not allow the center rod to bottom out on the mounting ear. Without the center rod bottoming out it allows the trailing arm to move around under force. The fix when installing the bushings is to grind/shave/file a little off each end of the OUTSIDE of the bushings. Don't over do it though, just enough that it bottoms out.
-Tony |
cha914 |
Jan 31 2003, 02:01 PM
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#18
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MUSR 8 - 5lug conversion done wed - drive 500miles thrus Group: Members Posts: 739 Joined: 31-December 02 From: Austin, TX Member No.: 63 |
damn...and I just thought I was almost done...
I noticed that when installing them in the control arm, but I thought it would compress in when I mounted the arms to the car ... oh well...whats another night in the garage (IMG:style_emoticons/default/tongue.gif) Thanks, Tony |
ChrisFoley |
Feb 1 2003, 08:29 AM
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#19
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I am Tangerine Racing Group: Members Posts: 7,964 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None |
If you don't trim the ends of the bushings to fit properly, it will negate any improvement from running the hard bushings. Not only will it ruin the mounting ear, but the trailing arm will bind, badly. The polygraphite is not compressible!
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Bleyseng |
Feb 1 2003, 09:59 AM
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#20
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Aircooled Baby! Group: Members Posts: 13,036 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
So how much are you talking to trim off the bushing??
Geoff Still working on putting the front back together |
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