Re: [MBZ] Violent shudder
Yea, I agree with the assessments. My Indy is a very thorough guy so I am
thinking that nothing is really bad visually but something must be worn out.
I want to avoid the trap of just changing out parts until the problem is
fixed. I will pass on your conclusions and have him check again. My records
of what was changed are in the car so I'll have to get my Indy to check
again.
On Thu, Dec 9, 2010 at 9:23 PM, Max Dillon wrote:
> Sounds a lot like either flex disc or center carrier bearing mount or
> something else in the drive shaft. 50k miles on an aftermarket flex disc
> is
> a reasonable life if a little on the short side - did you get OE or OEM?
>
> -Max
>
> -Original Message-
> From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com]
> On Behalf Of Ralph W
> Sent: Thursday, December 09, 2010 8:07 PM
> To: Mercedes List
> Subject: [MBZ] Violent shudder
>
> Hello All,
>
> Sorry for the long absence from the list. I haven't had much time for the
> diesel fleet the last few years due to extended overseas work assignments.
> I
> also moved recently and had to clear out the parts cars.
>
> Things are back to normal now and I have started driving the old coupe
> again
> ('83 300CD). The car has developed a very violent shudder when accelerating
> between 5 to 20 mph under a reasonable load. Above 20 mph everything is
> smooth again. If I accelerate very slowly the shudder is also not
> noticeable. It feels as if something is banging in the area of the center
> console. The vehicle is currently at my Indy for a new exhaust system. That
> has been installed and can be ruled out. The drive line was also overhauled
> about 50k ago with the flex discs and driveshaft hanger bearing replaced.
> Indy also put the vehicle up in the air and accelerated the engine and
> could
> not reproduce the shudder so the engine has to be under load. The engine
> mounts do not seem to be in too bad of shape but haven't been ruled out as
> the cause. Indy has had numerous friends check the car out as they visit
> and
> nobody has come up with a clearcut solution yet. Vehicle was also driven in
> reverse at a fairly high speed without experiencing the condition.
>
> Has anyone experienced this condition before? We are hoping to pinpoint the
> cause before randomly starting to replace components. It's almost x-mas and
> I'm trying to keep the finances in control.
>
> Thanks in advance.
>
> --
> Ralph Wasserbaech
> 2001 E320 wagon
> 1983 300CD
> ___
> http://www.okiebenz.com
> For new and used parts go to www.okiebenz.com
> To search list archives http://www.okiebenz.com/archive/
>
> To Unsubscribe or change delivery options go to:
> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>
>
> ___
> http://www.okiebenz.com
> For new and used parts go to www.okiebenz.com
> To search list archives http://www.okiebenz.com/archive/
>
> To Unsubscribe or change delivery options go to:
> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>
--
Ralph Wasserbaech
2001 E320 wagon
1983 300CD
___
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Violent shudder
Sounds a lot like either flex disc or center carrier bearing mount or
something else in the drive shaft. 50k miles on an aftermarket flex disc is
a reasonable life if a little on the short side - did you get OE or OEM?
-Max
-Original Message-
From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com]
On Behalf Of Ralph W
Sent: Thursday, December 09, 2010 8:07 PM
To: Mercedes List
Subject: [MBZ] Violent shudder
Hello All,
Sorry for the long absence from the list. I haven't had much time for the
diesel fleet the last few years due to extended overseas work assignments. I
also moved recently and had to clear out the parts cars.
Things are back to normal now and I have started driving the old coupe again
('83 300CD). The car has developed a very violent shudder when accelerating
between 5 to 20 mph under a reasonable load. Above 20 mph everything is
smooth again. If I accelerate very slowly the shudder is also not
noticeable. It feels as if something is banging in the area of the center
console. The vehicle is currently at my Indy for a new exhaust system. That
has been installed and can be ruled out. The drive line was also overhauled
about 50k ago with the flex discs and driveshaft hanger bearing replaced.
Indy also put the vehicle up in the air and accelerated the engine and could
not reproduce the shudder so the engine has to be under load. The engine
mounts do not seem to be in too bad of shape but haven't been ruled out as
the cause. Indy has had numerous friends check the car out as they visit and
nobody has come up with a clearcut solution yet. Vehicle was also driven in
reverse at a fairly high speed without experiencing the condition.
Has anyone experienced this condition before? We are hoping to pinpoint the
cause before randomly starting to replace components. It's almost x-mas and
I'm trying to keep the finances in control.
Thanks in advance.
--
Ralph Wasserbaech
2001 E320 wagon
1983 300CD
___
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
___
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Violent shudder
The transmission mount is suspect -- hard vibration on acceleration because the output shaft is bouncing up and down. Replace it (and the engine mounts -- if the center bearing mount was bad, the rest of the rubber is too!). Otherwise, check that center mount again, and remove the drive shaft and check the u-joint. They usually cause "muffler noise" when they go bad, but it's possible the joint is only delfecting seriously under heavy load. Peter ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
[MBZ] Violent shudder
Hello All,
Sorry for the long absence from the list. I haven't had much time for the
diesel fleet the last few years due to extended overseas work assignments. I
also moved recently and had to clear out the parts cars.
Things are back to normal now and I have started driving the old coupe again
('83 300CD). The car has developed a very violent shudder when accelerating
between 5 to 20 mph under a reasonable load. Above 20 mph everything is
smooth again. If I accelerate very slowly the shudder is also not
noticeable. It feels as if something is banging in the area of the center
console. The vehicle is currently at my Indy for a new exhaust system. That
has been installed and can be ruled out. The drive line was also overhauled
about 50k ago with the flex discs and driveshaft hanger bearing replaced.
Indy also put the vehicle up in the air and accelerated the engine and could
not reproduce the shudder so the engine has to be under load. The engine
mounts do not seem to be in too bad of shape but haven't been ruled out as
the cause. Indy has had numerous friends check the car out as they visit and
nobody has come up with a clearcut solution yet. Vehicle was also driven in
reverse at a fairly high speed without experiencing the condition.
Has anyone experienced this condition before? We are hoping to pinpoint the
cause before randomly starting to replace components. It's almost x-mas and
I'm trying to keep the finances in control.
Thanks in advance.
--
Ralph Wasserbaech
2001 E320 wagon
1983 300CD
___
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
