Help with Front Coil Spring Popping Noises - Vintage Mustang Forums
Vintage Mustang Forum
HomeForumGalleryClassifiedsAbout UsAdvertiseContact Us
» Auto Insurance
» Featured Product
Go Back   Vintage Mustang Forums > General Discussion > Vintage Mustang Forum
Vintage-Mustang.com is the premier Ford Mustang Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools
Old 03-18-2007, 04:03 PM   #1 (permalink)
Senior Member
 
Philksr's Avatar
 
Join Date: Jan 2005
Location: Florida
Posts: 818
Default

My 65 Fastback has had strange popping noises coming from the front suspension since I put it together. After much searching, I found out that the noise is coming the front shock towers. It is an actual pop that you can feel if you put your hand on the side of the tower. I am running 620 1" lower springs, Koni shocks and a Shelby drop. I can make the noise by jacking the car up and down at the front wheels. Everything is new, tight and lubricated. I think the noise is the spring moving around in the top of the tower. I have stock rubber insulators between the springs and the towers. Any ideas? Thanks!


__________________
Thinking about Florida Real Estate? Click Here: www.judykelley.com www.lakefrontflorida.com
http://www.lakefrontflorida.com/mustang/pics/sig.jpg
1965 Shelby Mustang Clone Click Here: http://www.lakefrontflorida.com/mustang/index.html
Philksr is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-18-2007, 04:09 PM   #2 (permalink)
Senior Member
 
Join Date: May 2002
Location: Detroit, MI
Posts: 2,002
Default

I put a new suspension on my 67 and had the same thing happen. It stopped after a 100 miles or so. I can't explain exactly what it was but it's gone now. It sounded like a binding of some sort.
__________________
http://img.photobucket.com/albums/v6...mustsigpic.jpg
1967 A code fastback
1967 Shelby clone (supercharged coyote)
1967 S code fastback
RCR GT40
1984 Porsche 911
chatas1 is offline   Reply With Quote Quick reply to this message
Old 03-18-2007, 06:14 PM   #3 (permalink)
Senior Member
 
Philksr's Avatar
 
Join Date: Jan 2005
Location: Florida
Posts: 818
Default

I shot some WD40 down onto the springs from the top of the shock towers and it seemed to help some. Could be my imagination.
__________________
Thinking about Florida Real Estate? Click Here: www.judykelley.com www.lakefrontflorida.com
http://www.lakefrontflorida.com/mustang/pics/sig.jpg
1965 Shelby Mustang Clone Click Here: http://www.lakefrontflorida.com/mustang/index.html
Philksr is offline   Reply With Quote Quick reply to this message
Old 03-19-2007, 06:50 PM   #4 (permalink)
Senior Member
 
Philksr's Avatar
 
Join Date: Jan 2005
Location: Florida
Posts: 818
Default

I have decided to take my front coil springs back out to find out what's up with the popping noises. The NPD catalog offers Midolene coil spring insulators for use with the 620 springs. Anyone know what these insulators are about?
__________________
Thinking about Florida Real Estate? Click Here: www.judykelley.com www.lakefrontflorida.com
http://www.lakefrontflorida.com/mustang/pics/sig.jpg
1965 Shelby Mustang Clone Click Here: http://www.lakefrontflorida.com/mustang/index.html
Philksr is offline   Reply With Quote Quick reply to this message
Old 03-19-2007, 06:59 PM   #5 (permalink)
Senior Member
 
blkfrd's Avatar
 
Join Date: Apr 2001
Location: Anaheim Hills, CA
Posts: 2,454
Default

The ones i've seen are thicker urethane insulators.
__________________
Tracy Blackford
Anaheim, CA
65 Mustang FB, 331 custom built with 289 H beam rods and 383W piston, 282S cam, self ported '70 351w heads, Dougs Tri-Y headers. 1.7 shaft rockers and 26986 beehives. Hurricane Single Plane and custom 750 HP. T5z and 3.50 9" posi rear.
430 HP @ 6500...not too shabby for old school heads!


'65 Fastback
blkfrd is offline   Reply With Quote Quick reply to this message
Old 03-19-2007, 07:19 PM   #6 (permalink)
Senior Member
 
Philksr's Avatar
 
Join Date: Jan 2005
Location: Florida
Posts: 818
Default

Might be worth a try. I am fairly sure my noise is coming from the springs either contacting the top of the spring tower or binding in some fashion. Once I get them out I think I should be able to see the problem.
__________________
Thinking about Florida Real Estate? Click Here: www.judykelley.com www.lakefrontflorida.com
http://www.lakefrontflorida.com/mustang/pics/sig.jpg
1965 Shelby Mustang Clone Click Here: http://www.lakefrontflorida.com/mustang/index.html
Philksr is offline   Reply With Quote Quick reply to this message
Old 03-19-2007, 07:25 PM   #7 (permalink)
Senior Member
 
Join Date: Dec 2000
Location: No. Calif. USA
Posts: 1,512
Default

It might be your UCAs if they are new. The daughter's car did the same thing when we put new UCAs on. It finally went away. I kept carefully adding grease to make sure it had worked it's way throughout the whole shaft.

I would have sowrn it was the springs too. Like you said you can even feel it when holding the spring and bouncing the car.

It is annoying but give it some time.

Now the new UCAs that I got form Opentracker and put on my 65FB were quiet as a mouse from day one.
__________________
'68 J code coupe back in H.S.1st car. Now 65 GTFB
Daughter & I built her a '66 coupe feature car in 8/04 MM & '05 Meguiar's winner see it @ Meguiars.com
Just finished on oldest son's '68 j code coupe
'67 FB project is next with/for youngest son
'92 5.0 LX vert 68k org miles
'74 TR6 Project for Wife
1965GTFB is offline   Reply With Quote Quick reply to this message
Old 03-20-2007, 06:27 AM   #8 (permalink)
Senior Member
 
Philksr's Avatar
 
Join Date: Jan 2005
Location: Florida
Posts: 818
Default

Makes a lot of sense. The UCAs don't seem to want to take a lot of grease. I even removed the grease fittings to make sure they weren't clogged up. Any ideas how I can force the grease into the entire UCA? Thanks!
__________________
Thinking about Florida Real Estate? Click Here: www.judykelley.com www.lakefrontflorida.com
http://www.lakefrontflorida.com/mustang/pics/sig.jpg
1965 Shelby Mustang Clone Click Here: http://www.lakefrontflorida.com/mustang/index.html
Philksr is offline   Reply With Quote Quick reply to this message
Old 03-20-2007, 09:27 AM   #9 (permalink)
Senior Member
 
1968mustang6's Avatar
 
Join Date: Sep 2006
Location: Arlington, TX
Posts: 1,054
Default

i had that popping noise on a 84 mustang that i rebuilt the rear suspension on, turned out that the spring was spun around on the wrong side. maybe try spinning the spring 180 degrees.
__________________
http://i475.photobucket.com/albums/r...ng6/june02.jpg
1968 Coupe, Grab-a-trak front and rear suspension, 302 HO, c4, 8 inch rear, 2005 split 5 star rims, making a modded california special.
1968mustang6 is offline   Reply With Quote Quick reply to this message
Old 03-20-2007, 10:16 AM   #10 (permalink)
Senior Member
 
66HertzClone's Avatar
 
Join Date: Nov 2003
Location: -74.79393 40.73716
Posts: 3,523
Default

What did you use for the spring perches? If you have the original rubber bushing type they maybe the source.
66HertzClone is offline   Reply With Quote Quick reply to this message
Old 03-20-2007, 11:35 AM   #11 (permalink)
Senior Member
 
midpack's Avatar
 
Join Date: Dec 2001
Location: Southwick, Ma.,USA
Posts: 5,418
Default

Had the same thing, definately the UCA bushings. I did the Mustang Steve mod on mine and was able to lube the whole thread. No more popping
midpack is offline   Reply With Quote Quick reply to this message
Old 03-20-2007, 11:40 AM   #12 (permalink)
Senior Member
 
Join Date: Aug 2004
Location: Portland, OR
Posts: 886
Default

Had a similar problem with mine. In addition to the Mustang Steve modification Midpack mentioned, I found the nuts on the ends of the UCA shaft were too tight. After loosening them a little, the shaft rotated more freely and the popping went away.

BTW - I have the Midolyne insulators on my springs. They are nothing special, just an insulator for the springs. Softer than poly, but a little more durable than rubber. They work just fine, but I don't think that is the problem here.
__________________
Eric

http://img152.imageshack.us/img152/3373/sigpic6zf.jpg

Life...it's the stuff that happens while you're waiting for moments that never come.

EJD68 is offline   Reply With Quote Quick reply to this message
Old 03-20-2007, 04:07 PM   #13 (permalink)
Senior Member
 
Join Date: Dec 2000
Location: No. Calif. USA
Posts: 1,512
Default

Just keep adding a little every few days. I think that is the only way unless you want to take them apart to make sure there is grease all the way down to the seals. If you see any coming out of the seals already then it's there.

In answer to the last poster, I installed Opentracker roller perches on the daughter's car when the new UCAs whet on so there is no way it was the perches. I don't think the rubber kind would do that either since they basiclly don't move, unless they are oder and the metal tube part is starting to separate from the saddle. I've seen that happen. Then if you tack weld the saddle to the tube and your UCAs are older it may crack them at the mounting hole. That is exactly why the daughter needed new UCAs.
__________________
'68 J code coupe back in H.S.1st car. Now 65 GTFB
Daughter & I built her a '66 coupe feature car in 8/04 MM & '05 Meguiar's winner see it @ Meguiars.com
Just finished on oldest son's '68 j code coupe
'67 FB project is next with/for youngest son
'92 5.0 LX vert 68k org miles
'74 TR6 Project for Wife
1965GTFB is offline   Reply With Quote Quick reply to this message
Old 03-21-2007, 12:32 PM   #14 (permalink)
Senior Member
 
Philksr's Avatar
 
Join Date: Jan 2005
Location: Florida
Posts: 818
Default

I took everything apart and the problem is definitely the UCAs. I took the shocks off and kept pumping grease into the arms while working the suspension with my jack. It's a lot quieter now. I'll keep greasing it every couple of trips and I expect that it will quiet down in time. Thanks for the great input!
__________________
Thinking about Florida Real Estate? Click Here: www.judykelley.com www.lakefrontflorida.com
http://www.lakefrontflorida.com/mustang/pics/sig.jpg
1965 Shelby Mustang Clone Click Here: http://www.lakefrontflorida.com/mustang/index.html
Philksr is offline   Reply With Quote Quick reply to this message
Old 03-21-2007, 12:35 PM   #15 (permalink)
Senior Member
 
Join Date: Mar 2001
Location: Phoenix, AZ
Posts: 1,415
Default

Quote:
Originally Posted by EJD68
Had a similar problem with mine. In addition to the Mustang Steve modification Midpack mentioned, I found the nuts on the ends of the UCA shaft were too tight. After loosening them a little, the shaft rotated more freely and the popping went away.

BTW - I have the Midolyne insulators on my springs. They are nothing special, just an insulator for the springs. Softer than poly, but a little more durable than rubber. They work just fine, but I don't think that is the problem here.
X2

I had this issue in my front end as well and thanks to the VMF I found out that it was the UCA's. Went to the mustangsteve page, made the mods and all is well. Good luck
__________________
65 coupe- 347, T5 5 speed
http://i31.photobucket.com/albums/c3...uldesac012.jpg


No longer:
66 coupe 289 auto- my first car- rust beyond belief
69 coupe 302 auto A/C- bought it to flip
90 GT vert 5 speed
02 GT coupe- black on black(Dad's) 5 speed
birdguy3 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Vintage Mustang Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are Off


Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 10:31 PM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.