Steering rack bushes
- Thread starter Ching14
- Start date
Hi Colm,
Since you’re struggling to obtain just the bushes maybe you consider purchasing a refurbished rack? More expensive of course, but cheaper than the Porsche item.
This outfit seem to have a decent reputation and although they don’t offer a refurbished rack for your Cayenne perhaps some parts from their VAG offerings will work with your rack:
https://shop.westernpowersteering.co.uk/audi.html
Jeff
Since you’re struggling to obtain just the bushes maybe you consider purchasing a refurbished rack? More expensive of course, but cheaper than the Porsche item.
This outfit seem to have a decent reputation and although they don’t offer a refurbished rack for your Cayenne perhaps some parts from their VAG offerings will work with your rack:
https://shop.westernpowersteering.co.uk/audi.html
Jeff
Thx Jeff. Yes, looking at refurbished ones as new ones are too dear and having no luck with finding just the bushes! Basically why I’m looking is when reversing (at very low speed) while turning the steering wheel the car seems to vibrate / judder. My mechanic seems to think the bushes in the steering rack may be gone!
That may be the case Colm, but as temperatures head towards zero the sports cars suffer a similar phenomenon when reversing on lock. Wide wheels and summer tyre compounds mean that the tyres skip across the road surface, causing juddering. Although probably it’s too early as yet with the unseasonably warm weather we’re experiencing, I’m just waiting for the usual annual posts on the Boxster/Cayman/911 forums!??
Just a thought though, and it would be worth getting your mechanic to check the front suspension components for play as well as making sure that the geometry is within spec.
Jeff
Just a thought though, and it would be worth getting your mechanic to check the front suspension components for play as well as making sure that the geometry is within spec.
Jeff
yeah usually occurs when on lock…both sides (Nothing when reversing straight). Has inspected when lifted. At present steering rack etc all seem to be fine-hence why he thought may just be bushes…don’t believe there is any clicking as such!
When lifted and in ‘steering lock‘ all looks/sounds good just seems to happen when on the ground (with weight of the car) that vibrate/jubber.
When lifted and in ‘steering lock‘ all looks/sounds good just seems to happen when on the ground (with weight of the car) that vibrate/jubber.
If it was a pump cavitation issue Andrew then surely the vibration would occur when driving forwards as well and Colm says that it only happens when reversing? He needs to distinguish between hydraulically-induced rotational vibration at the steering wheel and whole vehicle vibration induced by the front wheels skipping across the road surface with which we’re very familiar and which sounds to me to be the likely cause.
Incidentally, I had that specific problem the other day when reversing the Cayman off the drive, which surprised me because it wasn’t particularly chilly [>7 degC].
Jeff
Incidentally, I had that specific problem the other day when reversing the Cayman off the drive, which surprised me because it wasn’t particularly chilly [>7 degC].
Jeff
AndrewCS
Active member
Motorhead said:
When reversing `on lock`
It`s a `load` thing ... working on the principle of resistance
A steering lock operation at slow speed requires the system to `work` harder than at other times, sometimes noted by an increase in idle speed if operating the steering wheel at rest ... on some vehicles
Possible belt slippage and / or a pressure control issue within the pump - system (e.g. internal relief valve passing)
Isn`t it grand what a few assumptions and speculation can conjure up
Belt and braces ... increase tyre pressure by one bar and see what happens
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