An update to my long story: I have a vibration at certain speeds in my '87
300SDL. The vehicle is in super condition, with about 130K miles. This is
what I have done thus far:
replace transmission output shaft bearing and seal.
replace drive shaft center carrier bearing.
replace both front and rear drive shaft flex discs.
replace differential mount.
remove and switch rear axles from left to right.
Had motor mounts and trans. mounts checked, but not replaced. Apparently
they are all still good.
Had the drive shaft removed, checked out and balanced at a specialty shop in
Atlanta, Ga. It was out of balance slightly, and they added a weight to
correct this.
The vibration still is noticeable when under acceleration at about 25-30
MPH, then smooths out. At about 45-50 it returns until about 58 MPH, then
again smooths out and is not noticeable. At about 70-75mph, I can feel it
again returning slightly. After having all the above done, the vibration is
somewhat reduced and I assume the new rubbers are dampening the issue.
The strange thing is the weather seems to have an effect. When the temp. is
around 55F., I can feel this issue, but if it is above say 70 degrees F, it
is practically unnoticeable, except for the higher speed vibration.
Except for replacing all the mounts, I am at a standstill! Any ideas?
Thanks, Ralph - '87 300SDL
'84 300CD
On Sun, Mar 13, 2011 at 10:51 AM, Ralph Robertson <rare...@gmail.com> wrote:
> I first replaced all the rubber mountings on the vehicle, but the vibration
> was still there. Now hoping the balancing of the shaft will do the trick.
> Thanks for all input.
> Ralph
>
> On Sat, Mar 12, 2011 at 9:54 PM, Max Dillon
> <meadedil...@bellsouth.net>wrote:
>
>> Have you tried replacing the rubber bits? Flex discs on front and rear,
>> and
>> carrier bearing with rubber mount; Any/all could be culprit as well.
>>
>> -Max
>>
>> -----Original Message-----
>> From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com
>> ]
>> On Behalf Of Ralph Robertson
>> Sent: Friday, March 11, 2011 8:53 AM
>> To: Mercedes Discussion List
>> Subject: Re: [MBZ] 1987 300SDL Driveshaft
>>
>> I am assuming that the driveshaft for the 300SDL would be longer due to
>> the
>> longer wheelbase vehicle, but not sure. I was able to locate a company
>> that
>> would overhaul my old driveshaft and balance it, so hoping that will
>> correct
>> my vibration issue. Thanks for the reply.
>>
>> Ralph '87 300SDL
>> '84 300CD
>>
>> On Thu, Mar 10, 2011 at 11:04 PM, Rich Thomas <
>> richthomas79td...@constructivity.net> wrote:
>>
>> > There was (is?) an SDL at the knackers nearby, don't know what year, are
>> > there differences? Maybe Max and I need to take a trip over there and
>> check
>> > various things out.
>> >
>> > --R
>> >
>> >
>> > On 3/9/2011 8:12 AM, Ralph Robertson wrote:
>> >
>> >> I am looking for a used driveshaft for my 1987 300SDL. Can anyone
>> assist
>> >> me
>> >> here?
>> >>
>> >> Thanks. Ralph '87 300SDL
>> >> '84 300CD
>> >> Brooskville, Fl, 34601
>> >> _______________________________________
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>> _______________________________________
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>
>
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