Knocking noise from the rear end - Alfa Romeo Forum
You are currently unregistered, register for more features.    
 
  Home Forums AO Club Member Gallery Classifieds Trade Directory  

Go Back   Alfa Romeo Forum > Supported Alfa Romeo Models > Technical & Vehicle Assistance > Alfa GTV & 916 Spider

Reply
 
LinkBack Thread Tools
  #1 (Post Link)  
Old 01-04-12
Status: Very much in love with my alfa pocket rocket :D
AO Member
 
Join Date: Mar 2012
Location: United Kingdom
County: Hampshire
Posts: 46

Member car:

'96 GTV Twin Spark

Knocking noise from the rear end

Hey, me again!

Just picked up my p plate gtv on friday and i knew there were a couple of features with it but happy to accept that and sort them out as i like to get to know my cars. I seem to have a knocking noise from the back end so started having a poke around. Need to get it up the the air to check everything properly but that will have to wait till the bank holiday. One thing i did notice is that the exhaust back box sits VERY close to one of the rear mounts and if you rock it slightly it can tap against it so im wondering if that may be my issue as the knocking only happens over bumps etc. Should the back box be that close or is something not sitting correctly?

Will try and get a picture if needed to show what i mean.

Cheers
Marc

Last edited by BBSparky; 01-04-12 at 14:54. Reason: Damn my spelling
Reply With Quote
Sponsored Links
Advertisement
 
  #2 (Post Link)  
Old 01-04-12
EauRouge's Avatar
Status: Getting there. :)
AO Gold Member
 
Join Date: Jun 2009
Location: Suriname
County: Brokopondo
Posts: 6,730
Images: 2

Member car:

5 x 916's+Lotus Elan M100

Hi Sparky have you inspected the spring pan and dog leg bushes on the rear suspension as this is most likely to cause the knocking you describe regarding the rear. It could be the exhaust though although that is less of a knock more of a rattle. The exhaust has a crease where it goes over the rear subframe and it does sit very close, also check the heat shield under the very last box at the back as this is known to work loose.
Reply With Quote
  #3 (Post Link)  
Old 01-04-12
Status: Very much in love with my alfa pocket rocket :D
AO Member
 
Join Date: Mar 2012
Location: United Kingdom
County: Hampshire
Posts: 46

Member car:

'96 GTV Twin Spark

Cheers. Will give those parts a check. This is the bit Im talking about where the back box hits the bolt

http://i45.photobucket.com/albums/f6...4-01160538.jpg
Reply With Quote
  #4 (Post Link)  
Old 01-04-12
seadart's Avatar
Status: -
AO Silver Member
 
Join Date: Oct 2010
Location: United Kingdom
County: Hampshire
Posts: 2,150

Member car:

GTV ts lusso Ph 1

if you can make the back box hit something by waggling it around.. it sure will when you a driving.. wedge a bit of leather in there and go for a drive.. old glove or something..

Most common back end knocks can be..

Exhaust
Any of the suspension bushes
Upper wishbone ball joints
ARB droplinks
ARB bushes
Shock absorbers..
Reply With Quote
  #5 (Post Link)  
Old 01-04-12
Status: Very much in love with my alfa pocket rocket :D
AO Member
 
Join Date: Mar 2012
Location: United Kingdom
County: Hampshire
Posts: 46

Member car:

'96 GTV Twin Spark

Cheers, will try and see what happens. not sure how it could be fixed if it is that but we shall see :-)
Reply With Quote
  #6 (Post Link)  
Old 01-04-12
seadart's Avatar
Status: -
AO Silver Member
 
Join Date: Oct 2010
Location: United Kingdom
County: Hampshire
Posts: 2,150

Member car:

GTV ts lusso Ph 1

If it is that.. it it straightforward to sort it.. if you can't do it yourself any exhaust place will be ok.. exhaust pipe hanging can be a bit of a black art..
Reply With Quote
  #7 (Post Link)  
Old 01-04-12
Status: Very much in love with my alfa pocket rocket :D
AO Member
 
Join Date: Mar 2012
Location: United Kingdom
County: Hampshire
Posts: 46

Member car:

'96 GTV Twin Spark

Cheers, will probably be easier for me to take it to an exhaust place as cant imagine its that easy to do it right using axle stands etc, plus i can have a good look under the car while its up on the ramp

Loving this forum already!
Reply With Quote
  #8 (Post Link)  
Old 01-04-12
bradpit999's Avatar
Status: profesional ledgend
AO Silver Member
 
Join Date: Oct 2010
Location: United Kingdom
County: West Midlands
Posts: 1,860
Images: 42

Member car:

1998 PH1 gtv 3.0 lusso

all of my exhaust rubbers and locating hooks are in good order but i still had to wedge a tiny bit of wood in between exhaust and subframe as i had a knock too
Reply With Quote
  #9 (Post Link)  
Old 01-04-12
NineOneSix's Avatar
Status: Engine building cherry popped!
AO Platinum Member
 
Join Date: Dec 2006
Location: United Kingdom
County: Hertfordshire
Posts: 30,047
Images: 9

Member car:

GTV 16VT 260bhp

My exhaust is knocking at the rear since I changed my lower engine mount yesterday
Reply With Quote
  #10 (Post Link)  
Old 02-04-12
seadart's Avatar
Status: -
AO Silver Member
 
Join Date: Oct 2010
Location: United Kingdom
County: Hampshire
Posts: 2,150

Member car:

GTV ts lusso Ph 1

Originally Posted by NineOneSix View Post
My exhaust is knocking at the rear since I changed my lower engine mount yesterday
I guess it's called the 'knock on effect' ...
get the spanners out again..

Last edited by seadart; 02-04-12 at 02:03.
Reply With Quote
  #11 (Post Link)  
Old 02-04-12
NineOneSix's Avatar
Status: Engine building cherry popped!
AO Platinum Member
 
Join Date: Dec 2006
Location: United Kingdom
County: Hertfordshire
Posts: 30,047
Images: 9

Member car:

GTV 16VT 260bhp

Aye, I'll get the rear up, hopefully a hammer will sort this one
Reply With Quote
  #12 (Post Link)  
Old 02-04-12
bradpit999's Avatar
Status: profesional ledgend
AO Silver Member
 
Join Date: Oct 2010
Location: United Kingdom
County: West Midlands
Posts: 1,860
Images: 42

Member car:

1998 PH1 gtv 3.0 lusso

Originally Posted by NineOneSix View Post
hopefully a hammer will sort this one
"the persuader"
Reply With Quote
  #13 (Post Link)  
Old 02-04-12
Status: GTV for sale ...
AO Silver Member
 
Join Date: Jan 2011
Location: United Kingdom
County: Warwickshire
Posts: 1,842

Member car:

GTV 2.0

I tried to fix my exhaust bumping noise (it's a badly done custom job) by tightening down the rubber bush onto one of the metal bracket...

Now it squeeks loudly!!

Guess those things hang loosely for a good reason then... back to the drawing board.
Reply With Quote
Reply

Go Back   Alfa Romeo Forum > Supported Alfa Romeo Models > Technical & Vehicle Assistance > Alfa GTV & 916 Spider

Tags
end, knocking, kocking, noise, rear

Thread Tools


Recently 'Read'
No History to show

Useful Links
Lost Password?
AO Merchandise
FAQs
Register

External Links
Alfa Romeo 156...
2009 Alfa Romeo...
2011 Alfa Romeo...
Alfa Romeo GT...
L@@K~JUST...

Alfa Romeo

Recent Image

Project Halo Uk -...

View JabawokJayUK's images

Search

Forums

Classifieds
   

Gallery

Social Groups
   

Members
   


Did you know..?
Did you know..?
You can change the look and feel of AO by changing your colour scheme

   

New To Site? Need Help?

All times are GMT. The time now is 02:05.


Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87