[Healeys] Rear Knocking noise

[Alan Seigrist]

Paul -

Generally the diff will whine when it fails, rather than knock, so you
should be fine.

I'd check shock mount bolts, that's what it sounds like to me.  Also
possibly U-joints, but I'd look at the shock mounts first.  They need to be
TIGHT on the healey.

Alan

On Tue, Dec 14, 2010 at 6:46 AM, PG <britishcars at shaw.ca> wrote:

> Hi all,
>
>
>
> I have a knock coming from my rear end that I am trying to track down.
>
>
>
> It occurs only 50% of the time.  Often when jarring the car forward such as
> when engaging the overdrive and sometimes when starting to take off.
>
>
>
> I don't believe that it is coming from the differential but can't be
> certain. When the car is on jacks and I turn the rear wheels back and
> forth,
> I do not get a Knock.
>
>
>
> The shackles are all tight.
>
>
>
> Could it be the radius arm bushings??     Or the bushes on the spring
> shackles?
>
>
>
> Thanks
>
> paul