GreggT

I did throw this up on the Turbo forum and hope nobody minds me throwing it over here also....the car is (or was ) a Turbo.
These are Tarett monoballs (sphericals) on top of Ohlin struts.......and we get a clicking-chatter from the mounts even when rolling the car at .5 MPH across the smooth shop floor.
You may ask.....how is it that we think the noise is coming from the mounts?......well, we have a helpful volunteer hop in the trunk & we roll em around the shop. Putting an ear to the mount area seems to be the ticket.

The Taretts are not that old......the problem existed when they were new. This a pesky problem....and it's driving me NUTS .

Anyone else w/bad experience w/Taretts?.....or with other solid mounts?
Ideas welcome and appreciated. Thanks.

Marv

I have the same setup, but no noise.

I did have some initial noises the first few days, but they were probably the springs seating in.

My first thought is, are the mounting bolts for the mono ball plates tight?

You might also try placing a finger around the mounts and feeling for the click. You might localize it that way.

What does Tarett say? It might be a fault condition that they have heard of before.

GreggT

Thanks Marv.

rbahr

SOmething is loose. It may help if you can remove the mounts and look at the monoballs.If it is easy to move them by hand - at all, then they are worn...

The other thing is that there is often a space between the nuts and a shoulder on the shock. I have seen these in different sizes - ANY play here will be heard...

Thanks

Ray

GreggT

Update.....Tarett monoballs are definitely worn out. Going to try Elephant Racing.
But also.....front Ohlins are in bad shape.....after only 12,000 miles, driver side has play in the shaft, passenger side front has play and is starting to leak.
I'm disappointing in the short life.....am reaching out to Ohlins.

rbahr

Hirschmann is what Porsche uses - BUT expensive...

cgfen

Consider replacing with Porsche OEM monoballs instead.
Shops around me tell me they are better (much) than most aftermarket.
Which model Ohlins do you have??

Good luck

rbahr

Hi All,

I will be direct here. This is NOT meant to slam anyone, but good - meaning lasting, and accurate bearing assemblies are expensive. Folks are generally not willing to pay the prices for these, so less than good quality are used - pretty much by any aftermarket company.

Trouble is that these savings are somewhat a false economy - kinda like buying stuff at Walmart, you pay 1/2 as much and it last 1/3 as long...

Porsche Motorsports uses nothing but the best - having something fail in the middle of a race is not good for business...

BTW I have tried a number of aftermarket vendors including Tarret ,on the Porsche as well as other cars - at this point ALL bearings on my car are PMS - That is every OEM rubber surface is now a spherical bearing...

Ray

GreggT

POS MI10.....996 GT3, RS, GT2

GreggT

Just circling back on this.....my "clicking-clatter" is gone and we ended up moving over to Elephant mounts as well as rebuilds on the Ohlin struts as Ohlin found excessive play in the strut housing bushings.
I wish I had pics of the previous top-side view of the previous Tarett mounts however here is a view after Elephants have gone in.
What am I seeing different?
Comments were made that the secureness of the mount for the Elephants was questionable. We marked all 4 points so it would be easy to see any movement after a track weekend.

cgfen

thanks for the update.
best wishes

GreggT

Circling back on this......this can't be how was OE mounted....was it?
After only about 2 hours on the track all three nuts and bolt-heads had moved.
Pretty sure my camber and probably even my tow is off from what I'd prescribed.
What is wrong here?
None of these three points are really secure.....torquing those nuts further just pushes the metal down.....does not anchor their position.
I must be missing something..

rbahr

Hi Greg,

I don't understand what you mean by 'torquing those nuts further just pushes the metal down'

In my car and most GT3s I have see, the top of the shock is at or protruding beyond the hole. Given that the mounting bolts seem to line up, I would wonder if you have the plates swapped side to side or even the wrong plates...

Ray

GreggT

Thanks for trying to help.
Probably a poor description on my part......however per the pic, on install we marked with a Sharpie, circles around each of the three locking nuts.
After a track day all three nuts had moved well outside their previous positions.........though all nuts were torqued to spec on install.
As far as my description of the 'possible' cause.....for the most part I am re-stating some of my shop's description.
That said....appreciate the input and will pass along.

rbahr

Ok,

It is the deformation of the metal that is a concern. Typically the shock 'hat' will be flush with the underside of the shock tower. and even though the bolts and nuts are not that large, they will capture the shock, and it really won't move.

Something is not installed properly.

Ray