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Are cheap engine hydro mounts much noisier ?

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
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Goupil
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Are cheap engine hydro mounts much noisier ?

Post by Goupil »

Hola,

As my V70 is bound to do longer trips in the future, I'm trying to make it a little quieter inside. The car was fitted with some Powerflex polybushes at some point, which I've since reverted to stock, but it's still not as quiet as it used to be when I bought it in 2019. Not "engine in the passenger seat" loud, but still annoying on long drives. Definitely comes from the engine bay.
The mount by the crank balancer is a Febi from a few years ago, looks fine, not collapsed. Subframe bushings are also relatively new.

Which makes me think the cheap hydro mounts (Ocap brand, sourced from Skandix) I fitted in 2022 might not be as good as OEM. They look OK visually, but who knows how much damping they're achieving.

Has anyone had the chance to compare a good (Volvo, Lemforder, others ?) mount against a cheap one :?:
1998 Volvo V70 B5254T M56
1994 Volvo 945 B230FT M90
1985 Volvo 240 B230E

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Sveedy
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Post by Sveedy »

Are you running the same tires /tyres as in 2019 ? That's usually the first place I look at when it comes to cabin road noise.
Try to learn life's bad lessons vicariously through others.


1996 850 Turbo GLH ( Goes Like Hell )
1999 V70 GLT

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Krons
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Post by Krons »

Goupil wrote: 09 Feb 2026, 12:26 Which makes me think the cheap hydro mounts (Ocap brand, sourced from Skandix) I fitted in 2022 might not be as good as OEM. They look OK visually, but who knows how much damping they're achieving.

Has anyone had the chance to compare a good (Volvo, Lemforder, others ?) mount against a cheap one :?:
For the round engine mounts especially go with Volvo or Hutchinson (OEM supplier). I tried Hamburg Technic to save a few dollars and vibration was worse than old originals.

viewtopic.php?p=658995&hilit=Hamburg+technic#p658995
08 S602.5T/05 XC902.5T/02 S602.4T
08 C702.5T (sold)
05 S402.4i (RIP, timing belt failure)
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jmartin919
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Post by jmartin919 »

Krons, I assume you are referring to the hydraulic mounts on the front and back of the engine? If so, can you describe the vibration you were getting that replacement solved? In my case I get vibration when in drive and reverse with foot on the brake. In Park I get much less.
'00 S70 GLT SE
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'11 MB E350 Sport
'84 Chevy C10
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Post by Goupil »

Sveedy wrote: 09 Feb 2026, 15:24 Are you running the same tires /tyres as in 2019 ? That's usually the first place I look at when it comes to cabin road noise.
I've been through a few sets of tyres since, but the noise is very RPM related and not so much speed related (that's for the wind noises, which is another issue :mrgreen: )
Krons wrote: 12 Feb 2026, 04:54
Goupil wrote: 09 Feb 2026, 12:26 Which makes me think the cheap hydro mounts (Ocap brand, sourced from Skandix) I fitted in 2022 might not be as good as OEM. They look OK visually, but who knows how much damping they're achieving.

Has anyone had the chance to compare a good (Volvo, Lemforder, others ?) mount against a cheap one :?:
For the round engine mounts especially go with Volvo or Hutchinson (OEM supplier). I tried Hamburg Technic to save a few dollars and vibration was worse than old originals.

viewtopic.php?p=658995&hilit=Hamburg+technic#p658995
Interesting, didnt know Hutchinson was the OE for those. I think I'll order some in hope that the weather lets me replace them before the summer !
1998 Volvo V70 B5254T M56
1994 Volvo 945 B230FT M90
1985 Volvo 240 B230E

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Krons
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Post by Krons »

jmartin919 wrote: 12 Feb 2026, 08:14 Krons, I assume you are referring to the hydraulic mounts on the front and back of the engine? If so, can you describe the vibration you were getting that replacement solved? In my case I get vibration when in drive and reverse with foot on the brake. In Park I get much less.
https://www.fcpeuro.com/products/volvo- ... 0-30778951

I was wanting less vibration at idle. I’ve had CV shafts cause vibration during acceleration.
08 S602.5T/05 XC902.5T/02 S602.4T
08 C702.5T (sold)
05 S402.4i (RIP, timing belt failure)
The non-Swedes:
25 Mazda MX-5 / 17 Frontier Pro-4X / 17 Ford Focus
17 R1200GS / 15 Versys 1000 / 11 DR-Z400S / 07 R1200GSA

jmartin919
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Post by jmartin919 »

Were you getting vibration at idle in Park and Drive?
'00 S70 GLT SE
'82 MB 380SL
'11 MB E350 Sport
'84 Chevy C10
'93 850 GLT NA SOLD

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Krons
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Post by Krons »

jmartin919 wrote: 12 Feb 2026, 17:37 Were you getting vibration at idle in Park and Drive?
Yes.
08 S602.5T/05 XC902.5T/02 S602.4T
08 C702.5T (sold)
05 S402.4i (RIP, timing belt failure)
The non-Swedes:
25 Mazda MX-5 / 17 Frontier Pro-4X / 17 Ford Focus
17 R1200GS / 15 Versys 1000 / 11 DR-Z400S / 07 R1200GSA

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