U joints can fail in other ways than excessive play. Grabbing and wiggling in
place is not a comprehensive test.
Joints can and often do get the needles frozen in place and will no longer
rotate smoothly. This induces a vibration.
To check for this unbolt the flange and rotate the joint by hand.
My guess I'd that if the yokes are assembled correctly you have a almost
frozen u joint.
Sent from my iPhone
On Sep 9, 2012, at 0:17, "Hans Duinhoven" <h.duinhoven@planet.nl> wrote:
> Good question. But - the vibration is in for many years, but as the car's
mishap becomes a bit irritating.
> A few weeks ago the GT has been safety tested (bi-annual as it is a
classic).
> Play in the UJ's is always verified as part this safety test, so I assume
the joints are ok.
>
> Cheers,
> Hans
>
> ----- Original Message ----- From: "Charley & Peggy Robinson"
<ccrobins@ktc.com>
> To: "Hans Duinhoven" <h.duinhoven@planet.nl>
> Cc: <mgs@Autox.Team.Net>
> Sent: Saturday, September 08, 2012 11:27 PM
> Subject: Re: [Mgs] Drive shaft balanced
>
>
>> Are you sure it's not a U-joint going bad?
>>
>> CR
>>
>> On 9/8/2012 4:01 PM, Hans Duinhoven wrote:
>>> Hi,
>>>
>>> After some tests at several revs of the engine and speed I finally found,
that some vibrations between the speed of 50 and 70 m/h are caused by I think
an unbalanced driveshaft between the gearbox and the differential gear.
>>> What is the cause of this?
>>> Can this be rebalanced and if so - how?
>>> Is it easier to replace the driveshaft with a used one instead of
rebalancing the one, which is on the car?
>>>
>>>
>>> Cheers,
>>>
>>> Hans
>>> 71 BGT
>>> no overdrive _______________________________________________
>>>
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