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Suspension noise

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Suspension noise
#1
Russ Johnston Avatar
Russ Johnston
Toronto, ON '73 Supercharged MGB, flowed head, c, Canada   CAN
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It’s been a long while since I’ve been on, but the MG is still running great.

That said, I head a squeak/small clunk noise coming from the back corner of the car as I went over bumps. When I was parked, I bounced the back side and heard a squeak. I then pulled the back wheel off and looked around. I tightened the 2 bolts on the damper (not much movement there), looked at the bottom plate where the arm/platform connects to the center of the leaf spring, no issues. But… I notice that I can move the connecting rod bushing a bit back and forth (there is a bit of a tunk noise, maybe 1/8-1/16”). I tried tightening the connector (as shown in the photo), there’s no more thread and it starts torquing the bushing.

I’ve been out of this for a while, hope someone can chime in and give me some thoughts on next steps (or other things to check).

Thanks, gang.



Edited 1 time(s). Last edit at 2024-04-14 08:59 PM by Russ Johnston.


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Re: Suspension noise
#2
ClayJ Avatar
ClayJ Silver Member Clay Johnston
Mt. Olive, MS, USA   USA
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1972 MG MGB
If you suspect the drop link is bad, remove it and go for a test drive. The most common place I've seen these fail as the rubber in the ball at the bottom gives up.

The top of the link is a taper fit, so no reason to crank down on the nut, mechanic tight is fine. It may be that the rubber has given up on that end.

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Re: Suspension noise
#3
Russ Johnston Avatar
Russ Johnston
Toronto, ON '73 Supercharged MGB, flowed head, c, Canada   CAN
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Replace this thing?

Boy it’s been a while!


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Re: Suspension noise
#4
rocannon Avatar
rocannon Gold Member rocannon L
Comanche County, OK, USA   USA
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1967 MG MGB GT "GT From Hell"
That bushing is bonded to its housing. It is not supposed to rotate like that; when it does it’s very noisy, as you’re finding out.

Time to get a new link like Russ shows.


Pogo is right.
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Re: Suspension noise
#5
Michael74MGB Avatar
Michael74MGB Michael Austin
Odessa, TX, USA   USA
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1974 MG MGB MkIII "Maggy"
I've had bad luck with the quality of the rubber bushing in new replacement links. They all seem to have crapped out after about a year. Decent used one or NOS are likely better, thought could be harder to find. I see Moss has an "improved " one that may actually be better...

Moss link


74 MGB: APT VP11 cam, lifters, valve springs; 9:1; ported head; TT exhaust; vernier timing gear; wizard aluminum radiator; dizzy by Jeff S.; stock HIF4's; it goes on and on.....



Edited 1 time(s). Last edit at 2024-04-15 07:38 AM by Michael74MGB.

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Re: Suspension noise
#6
Alicemgb-1 Peter Lee
Malvern, PA, USA   USA
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Just a thought about rubber bushings. I always believed they should be secured at normal ride height. That keeps the bushing relaxed. Not easy to do without a wheel lift hoist.

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