Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered
 
jbscheff's Avatar
 
Join Date: Nov 2004
Location: Silverdale, WA
Posts: 257
Garage
Did I forget something when changing struts?

I changed my strut inserts and bushings out a while ago and ever since I noticed a clunking sound whenever I go over sharp bumps like pot holes or certain speed bumps. I checked everything (or so I thought) and couldn't find a source. Tonight I was changing my tires for AX and I may have found something. I grabbed the bottom of one of the front struts and it wiggles and I can hear a slight clunk. It doesn't move much, but I'm betting thats my noise. I think there's supposed to be rubber washer at the top, and I thought I put everything in that I should have but it was a while ago and I'm not sure.

If everything's there, should I be able to wiggle the bottom of the strut? I don't remember what they were originally (boge maybe?) but I changed to bilsteins.

__________________
Jason
'73 911 Carrera RS clone w/3.0
Old 02-11-2011, 07:04 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Max Sluiter
 
Flieger's Avatar
 
Join Date: Mar 2006
Location: So Cal
Posts: 19,644
Garage
The linear bushings in the Bilsteins wear out fast and cause a clunk.
__________________
1971 911S, 2.7RS spec MFI engine, suspension mods, lightened
Suspension by Rebel Racing, Serviced by TLG Auto, Brakes by PMB Performance
Old 02-11-2011, 07:27 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered
 
LakeCleElum's Avatar
 
Join Date: May 2004
Location: Lake Cle Elum - Eastern WA.
Posts: 8,417
I had a similar problem in my '73 just after I bought it.....The PO had changed the sway bar bushings. He had not slid the arms all the way onto the bar, allowing it to move left to right about 1/2 inch.....When hitting a bump, the dust cover of the strut would hit the arm of the sway bar. Made a terrible clunk....
__________________
Bob S.
73.5 911T
1969 911T Coo' pay (one owner)
1960 Mercedes 190SL
1962 XKE Roadster (sold) - 13 motorcycles
Old 02-11-2011, 08:06 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered
 
jbscheff's Avatar
 
Join Date: Nov 2004
Location: Silverdale, WA
Posts: 257
Garage
Are the bushings available seperately, or would I need a whole new insert?
__________________
Jason
'73 911 Carrera RS clone w/3.0
Old 02-11-2011, 08:07 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered
 
jbscheff's Avatar
 
Join Date: Nov 2004
Location: Silverdale, WA
Posts: 257
Garage
Figured it out!

I finally got a chance to dig into the noisy strut. These are Boge's with Bilstein inserts. The collar that attaches the insert to the lower strut had come loose, allowing the insert to move radially and axially within the lower strut. Once I got everything back together, the offending clunk was gone. I swear I could feel a difference in handling, too.

I'd like to complain to the installer of the struts, but...that would be me. So lesson for others changing struts - make sure that collar is nice and tight.
__________________
Jason
'73 911 Carrera RS clone w/3.0
Old 03-20-2011, 10:22 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered
 
Join Date: Aug 2002
Location: Galivants Ferry, SC
Posts: 10,550
Don't know if it helps....but for different reasons some guys ( me too) put in a small amount of fluid in the Boge housings before inserting the replacement shock inserts. Engine oil or anti-freeze. Small amount only.... as excess will be forcibly ejected. The idea is to provide a better internal heat path, and I would think may help quiet down some rattling potential if the space instead was "air".

__________________
Wil Ferch
85 Carrera ( gone, but not forgotten )
Old 03-21-2011, 07:20 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
Reply


 


All times are GMT -8. The time now is 08:12 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.