Vibration noise

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teschio79
480 Newbie
Posts: 6
Joined: Wed Aug 14, 2019 6:12 am

Vibration noise

Post by teschio79 » Wed Aug 14, 2019 12:28 pm

Good morning , i had Bought a 95 turbo past week ( about 20 years ago my first car was a 1990 white turbo ).
The car is in very good conditions, but there is only a problem, around 1800-2500 rpm the noise is very loud. Seems that the engine transmitt the vibration to all the car , i think there is some problems with subframe silent block , correct? What can i do for change ?

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jamescarruthers
480 Is my middle name
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Location: Cambridge

Re: Vibration noise

Post by jamescarruthers » Wed Aug 14, 2019 1:03 pm

Hello,

Based upon experience and reading on here, this is likely to be the rear gearbox mount‎ (often called engine mount). Of course you could be lucky and just have a misaligned exhaust.

You can't get new ones so if it is this, you'll have to get one from a scrapped car (all later cars have the same type, which is quieter but more fragile than the ‎earlier type).

Use the search function on here for 'rear engine mount' and 'rear gearbox mount' and you should find plenty of info. ‎
1987 Volvo 480 ES, 507274, 217 - Red (Ness)
2001 Volvo C70 2.4T convertible (Olivolvo)
2008 Mini Cooper convertible (Mau)

Previous 480's:
J123 CFU -- ES
J449 MNL -- ES
D864 CPV -- ES
L691 JFC -- Turbo
F70 MNR -- ES
H858 FGV -- Turbo
E981 KHM -- ES (509849)

teschio79
480 Newbie
Posts: 6
Joined: Wed Aug 14, 2019 6:12 am

Re: Vibration noise

Post by teschio79 » Wed Aug 14, 2019 6:00 pm

Sorry for my english, i am from Italy .
What can i do for test the mount ?

teschio79
480 Newbie
Posts: 6
Joined: Wed Aug 14, 2019 6:12 am

Re: Vibration noise

Post by teschio79 » Tue Aug 20, 2019 10:17 pm

teschio79 wrote:
Wed Aug 14, 2019 6:00 pm
Sorry for my english, i am from Italy .
What can i do for test the mount ?
Hi, Someone can tell me how can i check the engine mounts?
Thanks :)

jifflemon
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Re: Vibration noise

Post by jifflemon » Wed Aug 21, 2019 8:26 am

is the car manual or automatic?

You need to get someone to load the engine (automatic - Put in drive whilst holding the brake, Manual, hold at biting point on clutch) whilst watching the engine.

the engine should move slightly - if the mount has gone, it'll leap about!

Alan 480
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Re: Vibration noise

Post by Alan 480 » Wed Aug 21, 2019 11:35 am

jifflemon wrote:
Wed Aug 21, 2019 8:26 am
is the car manual or automatic?

You need to get someone to load the engine (automatic - Put in drive whilst holding the brake, Manual, hold at biting point on clutch) whilst watching the engine.

the engine should move slightly - if the mount has gone, it'll leap about!
I'd use REVERSE so that the mount will try and part away from the steel base plate/ sub-frame?
Alan

480 ES 2litre x 2, C30 1.8ES, SS1

jifflemon
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Re: Vibration noise

Post by jifflemon » Wed Aug 21, 2019 12:13 pm

Ah, very good point! Yes, reverse gear would show it up much better

teschio79
480 Newbie
Posts: 6
Joined: Wed Aug 14, 2019 6:12 am

Re: Vibration noise

Post by teschio79 » Wed Aug 21, 2019 2:47 pm

Hi, car is manual. The noise come up also in neutral gear and approx 2000 rpm , when i try to turn the steering ( with stopped car in neutral gear) The noise increase.
Possible subframe bushes?

Alan 480
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Posts: 837
Joined: Sun Aug 28, 2011 9:03 am
Location: Aberdeen

Re: Vibration noise

Post by Alan 480 » Wed Aug 21, 2019 5:51 pm

teschio79 wrote:
Wed Aug 21, 2019 2:47 pm
Hi, car is manual. The noise come up also in neutral gear and approx 2000 rpm , when i try to turn the steering ( with stopped car in neutral gear) The noise increase.
Possible subframe bushes?
turning steering wheel suggests to me an issue with power steering, check fluid level first?
Alan

480 ES 2litre x 2, C30 1.8ES, SS1

teschio79
480 Newbie
Posts: 6
Joined: Wed Aug 14, 2019 6:12 am

Re: Vibration noise

Post by teschio79 » Wed Aug 21, 2019 7:51 pm

Fluid is ok. I mean that when Turn The strearing , The subframe is more solicited and vibrations increases.

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