01-12-2019, 02:25 AM
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#1
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Registered User
Join Date: Jul 2009
Location: Arlington Heights, IL
Posts: 1,561
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Check your motor mounts. They contain a very stinky fluid.
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01-12-2019, 04:27 AM
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#2
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Registered User
Join Date: Nov 2018
Location: Pomona, CA
Posts: 158
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The mounts are new, the CV that drives the wheels (I don't know what side, the shop did not detail) was replaced, and the bolts on all the CV joints are clean, so I assume they checked the torque on all of them, the shop replaced the plugs and did one tube; prev owner had replaced all tubes, No coolant leak as far as I know. The smell is reminiscent of spilling oil on the engine. You wanna talk about a smell, my Golf TDI stank like a strong rubber smell after a DPF regen, buy they told you about that.
So it's not uncommon for the Boxster to emit odors?
Thanks to all.
__________________
'99 986 Base
2010 Golf TDI
'74 914 2.0
'56 356A
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01-12-2019, 07:20 AM
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#3
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1998 Boxster Silver/Red
Join Date: Sep 2017
Location: 92262
Posts: 3,085
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Quote:
Originally Posted by Flavor 987S
Check your motor mounts. They contain a very stinky fluid.
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Please, tell me about this fluid. I just replaced the front motor mount on my 98 and, um, no fluid. Are you referring to the transmission mounts (2). You're telling me they contain fluid? Please, tell me about this fluid.
Thank you.
__________________
1998 Porsche Boxster
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01-12-2019, 08:55 AM
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#4
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Certified Boxster Addict
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
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Quote:
Originally Posted by Starter986
Are you referring to the transmission mounts (2). You're telling me they contain fluid? Please, tell me about this fluid.
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Yes, the transmission mounts contain a highly viscous fluid that dampens drivetrain vibrations. One of my trans mounts started to leak and there were drips of fluid on the ground.
__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
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01-12-2019, 09:29 AM
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#5
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Porsche "Purist"
Join Date: Aug 2003
Location: Wisconsin
Posts: 2,123
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Yes they leak and its orange.
__________________
1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster original owner. I installed used motor at 89k.
1987 924S. 2002 996TT. PST-2
Owned and repaired Porsches since 1974. Porsche: It's not driving, it's therapy.
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01-12-2019, 09:36 AM
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#6
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Porsche "Purist"
Join Date: Aug 2003
Location: Wisconsin
Posts: 2,123
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__________________
1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster original owner. I installed used motor at 89k.
1987 924S. 2002 996TT. PST-2
Owned and repaired Porsches since 1974. Porsche: It's not driving, it's therapy.
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01-12-2019, 10:32 AM
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#7
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1998 Boxster Silver/Red
Join Date: Sep 2017
Location: 92262
Posts: 3,085
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Quote:
Originally Posted by thstone
Yes, the transmission mounts contain a highly viscous fluid that dampens drivetrain vibrations. One of my trans mounts started to leak and there were drips of fluid on the ground.
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Thank you, guys.
That explains why they're so darn expensive.
Anyone know...
1. Why they contain fluid in the first place?, and...
2. Is there a non-fluid alternative?
Every day I learn something new from this forum.
Thanks!
__________________
1998 Porsche Boxster
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01-12-2019, 12:05 PM
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#8
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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Quote:
Originally Posted by Starter986
Thank you, guys.
That explains why they're so darn expensive.
Anyone know...
1. Why they contain fluid in the first place?, and...
[B]2. Is there a non-fluid alternative?
[/B]Every day I learn something new from this forum.
Thanks!
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There are solid mounts available, do a search to see pro's & con's. For a street car I believe new oem mounts are best.
__________________
OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
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01-12-2019, 03:21 PM
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#9
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Certified Boxster Addict
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
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Quote:
Originally Posted by Starter986
1. Why they contain fluid in the first place?
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I don't know know for sure, but these mounts were used on the 993 (as engine mounts since the engine is in the back of a 911 rather than the transmission) so its something that they had available and already in production.
Quote:
Originally Posted by Starter986
2. Is there a non-fluid alternative?
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Yes, there are full rubber mounts and some semi-solid mounts. Both will increase vibration quite a bit. I have the semi-solid mounts on my Boxster but its a race car so NVH (noise, vibration, harshness) isn't a concern.
Do a search and you can find several posts discussing the merits of other mounts and other owners experiences.
__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
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