* Update w/ pics, see post #23 *
Background:
1991 318is, H&R Race, Billy Sport, Kosei K1 15x7, IE billet alum RSMs, 210k miles, rear seat removed, rear carpet removed, all trunk carpet and spare tire removed, ski hole plate removed, so I hear everything.
Symptoms:
A loud clacking sound has very recently developed from the right rear when I drive over harsh but small bumps. Sounds like it is coming from in the trunk, not a dull thudding from the subframe or something. Seems to happen when the suspension is jarred, rather than long and smooth suspension travel. I hear the clacking from inside the car w/ the windows up. I can't replicate the clacking at all by jumping up and down in the trunk.
Attempted fixes:
Adjusted the trunk so it shut snug with no play, took off rear right wheel to inspect, bent the brake dust shield back into place. It isn't the RSMs, they are in great shape. I assume the bushings are original, and shot.
Suspected diagnoses:
Could be bad subframe bushings. Do bad bushings make this sound? There may be something loose in the battery tray, but it doesn't really sound like that kind of noise.
Can anyone help?
Thanks guys.
Background:
1991 318is, H&R Race, Billy Sport, Kosei K1 15x7, IE billet alum RSMs, 210k miles, rear seat removed, rear carpet removed, all trunk carpet and spare tire removed, ski hole plate removed, so I hear everything.
Symptoms:
A loud clacking sound has very recently developed from the right rear when I drive over harsh but small bumps. Sounds like it is coming from in the trunk, not a dull thudding from the subframe or something. Seems to happen when the suspension is jarred, rather than long and smooth suspension travel. I hear the clacking from inside the car w/ the windows up. I can't replicate the clacking at all by jumping up and down in the trunk.
Attempted fixes:
Adjusted the trunk so it shut snug with no play, took off rear right wheel to inspect, bent the brake dust shield back into place. It isn't the RSMs, they are in great shape. I assume the bushings are original, and shot.
Suspected diagnoses:
Could be bad subframe bushings. Do bad bushings make this sound? There may be something loose in the battery tray, but it doesn't really sound like that kind of noise.
Can anyone help?
Thanks guys.
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