Rear Creaking & big knocking over bumps

Please restrict your questions and replies to Capri related technical issues!
Post Reply
80s-new-man
Posts: 59
Joined: Tue May 21, 2019 11:21 am
Car(s): Ford Capri 2.9 Cosworth Dec 1984, reg. Feb 1985
Location: Suffolk

Rear Creaking & big knocking over bumps

Post by 80s-new-man » Sat Oct 19, 2019 6:08 pm

Hi , this has got worse over the last couple of months, it seems there is a creaking sound and quite abrupt “hits” when I go over even small bumps. It feels like the car is hitting bump stops or something.
Could it be very worn out shocks/dampers?

Cheers
Cheers
:beer:
Stu
Capri 2.9i Special Dec 1984, reg Feb 1985
Major surgery and Cossie 2.9 24v BOB heart transplant

Allan mcl
Posts: 31
Joined: Tue May 07, 2019 6:29 pm
Car(s): Capri mk3 1600 laser,jaguar c.f., daily,Morris minor rarely, mini cooper.
Location: South shields

Re: Rear Creaking & big knocking over bumps

Post by Allan mcl » Sat Oct 19, 2019 8:06 pm

Have you checked the rear leaf spring shackle bushes for wear, if the ride height is ok it be those or they could be loose.good luck.

Mc Tool
Posts: 697
Joined: Sat May 17, 2014 8:34 pm
Car(s): 1980 mk3 capri 2l ohc T9 , Toyota Blade Master 3.5l V6, Paso , 850T,rd400, 900ss
Location: Invercargill New Zealand

Re: Rear Creaking & big knocking over bumps

Post by Mc Tool » Sun Oct 20, 2019 4:50 am

Yep , :agree: , sounds like a rubber bush has given up ,possibly a shock mount . Shouldn't be to hard to see, there ain't any hidden bits on Capri back end :D
you know it was a goodie when the end is stickin up out of the water

80s-new-man
Posts: 59
Joined: Tue May 21, 2019 11:21 am
Car(s): Ford Capri 2.9 Cosworth Dec 1984, reg. Feb 1985
Location: Suffolk

Re: Rear Creaking & big knocking over bumps

Post by 80s-new-man » Sun Oct 20, 2019 6:56 am

Ah I see, thanks for those pointers guys, I’ll try and have a look in those areas 8-)
Cheers
:beer:
Stu
Capri 2.9i Special Dec 1984, reg Feb 1985
Major surgery and Cossie 2.9 24v BOB heart transplant

Paul G
Posts: 1374
Joined: Fri Jul 03, 2015 5:21 pm
Car(s): MK 3 3.0S needing restoration, 2.0S, 1.6 Laser (nearly ready), Fiesta mK2 pop plus, Skoda Octavia VRS,
Location: High Wycombe

Re: Rear Creaking & big knocking over bumps

Post by Paul G » Mon Oct 21, 2019 10:30 am

If the shackles are OK, I'd jack the rear up with the axle hanging and check the springs themselves for any fractures etc. Also give them a good wire brushing and possibly a coat of WD40 just to eliminate "stiction" ie friction causing the leaves to stick to each other when they should be able move as the car goes over bumps etc. This is quite a common cause of creaking with multi-leaf springs.

User avatar
D366Y
Donator
Donator
Posts: 1407
Joined: Mon Sep 03, 2012 2:26 pm
Car(s): 1986 Laser 1.6, runaround project
1981 GL Auto 2.0, Barn-Find-Resto, now also a runaround project
1980 3.0S, crash damage resto

Currently full up and no more space but I still want a 2.8...
Location: South Bucks

Re: Rear Creaking & big knocking over bumps

Post by D366Y » Mon Oct 21, 2019 10:38 am

Spooky, I've just noticed the same issue over the weekend as well - will check the bushes :)

Post Reply