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CorsePerVita
Joined: 25 Jul 2008
Posts: 1992
Location: Redmond, Oregon
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 Posted: Tue Sep 17, 2013 9:23 am Post subject: Awesome vibration when stopping (engine mount?) |
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I'm 99% sure I've got an engine mount issue. Will verify this week. But recently upon coming to abrupt stops, or stopping, or at idle, the shifter seems to shake and vibrate. In fact, upon an abrupt stop, the shifter will flop forward and back a bit. It's visible and you can see it. It's not dramatic at this point, but it's uh... well... concerning to me...
I thought "transmission mounts?" but I checked them and they're in good shape from what I can see. I certainly can't shake them. So I suspect a transmission mount.
That said... does anyone have any recommended upgrade mounts they like? It's my daily so race mounts are probably overkill. But something that isn't going to put ridiculous strain on the chassis, but is a nice improvement would be great.
Would prefer feedback from those who have actually installed such a thing on their car. Unless factory is recommended, which is fine too.
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- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS |
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fiat22turbo
Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR
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| Posted: Tue Sep 17, 2013 10:39 am Post subject: |
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NOS stock passenger mount.
Eurotek street mounts ($$)
DIY spring replacement for the passenger side.
Good luck.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose) |
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Tue Sep 17, 2013 11:49 am Post subject: |
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I have two sets of "Fast Street" Vibratechnics in stock and ready to ship. Send PM if interested.
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erstwhile owner of just about every 924 variant ever made |
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Rasta Monsta
Joined: 12 Jul 2006
Posts: 11733
Location: PacNW
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| Posted: Tue Sep 17, 2013 2:22 pm Post subject: |
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Incomplete diagnosis? A collapsed or torn motor mount is often visible on inspection, and busted up shifter bushings can make the shifter do alarming things.
Get under it.
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Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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Cedric
Joined: 27 Aug 2004
Posts: 2818
Location: Sweden
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| Posted: Tue Sep 17, 2013 3:57 pm Post subject: |
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| ideola wrote: | | I have two sets of "Fast Street" Vibratechnics in stock and ready to ship. Send PM if interested. |
These ones are still VERY stiff, for a street car only I would look around at alternatives.
My friend had toasted engine mounts, and you could rock the engine back and forth by hand. And you would se it move around in the engine bay when cranking for example, or revving up the engine.
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1980 924 Turbo
www.instagram.com/garagecedric/ |
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CorsePerVita
Joined: 25 Jul 2008
Posts: 1992
Location: Redmond, Oregon
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| Posted: Mon Sep 23, 2013 12:53 am Post subject: |
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| Cédric wrote: | | ideola wrote: | | I have two sets of "Fast Street" Vibratechnics in stock and ready to ship. Send PM if interested. |
These ones are still VERY stiff, for a street car only I would look around at alternatives.
My friend had toasted engine mounts, and you could rock the engine back and forth by hand. And you would se it move around in the engine bay when cranking for example, or revving up the engine. |
The vibration is bad enough that the heat shield is squeaking pretty badly. It's driving me nuts.
| Rasta Monsta wrote: | Incomplete diagnosis? A collapsed or torn motor mount is often visible on inspection, and busted up shifter bushings can make the shifter do alarming things.
Get under it. |
I know I know... I've been working on the 914 to get it sold and working on the trackday project to get the body work done... with the 911 gone it's easier since I have less to work on. But only so much time in a day.
_________________
- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS |
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Harm
Joined: 02 Apr 2009
Posts: 1378
Location: Holland
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| Posted: Mon Sep 23, 2013 7:49 am Post subject: Re: Awesome vibration when stopping (engine mount?) |
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| Quote: | | Would prefer feedback from those who have actually installed such a thing on their car. Unless factory is recommended, which is fine too. |
Not the requested field experience you're after!
I do have a second set for backup, and before putting it on the shelf
I took it apart once to check te spring… pretty forward assembly IMHO
Would replacing the spring, by for instance a valve spring  , be helpful?
HTH
Cheers,
Harm.
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Porsche 924 NA 1982 LY7A/A3A3 _ Greater driving pleasure never harmed anyone. |
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Rasta Monsta
Joined: 12 Jul 2006
Posts: 11733
Location: PacNW
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| Posted: Mon Sep 23, 2013 10:48 am Post subject: |
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| Cédric wrote: | | These ones are still VERY stiff |
+1! I don't regret buying them, but they sure ain't smooth.
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Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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