Tyre Pressures

[Arqum]

Hi guys. Was wondering what pressures people are running on in the standard tyres. I've been running on 40psi. Sound ok?

[Valkirk]

Doesn't it list the correct pressures inside the drivers door? (Think thst is where they normally are)

[Arqum]

yeah it does, but i wanted to see what people here are running and what they find preforms best.

[stevet]

I'm on 38 all round.

[Arqum]

I've been on 40, car keeps pulling to the right. Brand new tyres all round and also been wimed

[stevet]

If its been wimed then definitely not the tracking then. What make are the tyres?

[Arqum]

Bridgestones all round. As per what the original tyres where. When driving in a straight line the steering wheel is ever so slightly towards the left. If I correct it and put it central the car will go to the right.

[MNMJ]

I use the pressures as stated on the door frame. I can't remember what they are, but check each time I do the pressures (every 500 miles or before a long trip)

[lotusdave]

doubt pulling is tyre pressure, more likely tracking even if its been checked. Who checked it? Also, road camber makes car wonder so i assume it pulls on motorway too, which is generally flat. id get tracking checked as something must still be out...

[Arqum]

I take the car to a specialist who deals with high end cars only. All looks fine on the hawk machine but when you drive it's very slightly out.

[lotusdave]

but by definition of it not driving straight something is out. Next id check tyre depths as if they are unevenly worn that could do it. Swap left to right temporarily and see if that changes anything. Good luck finding out.

[Arqum]

Not the tyres as they are brand spanking new

[Arqum]

Issue continues. Brand new rubber all round, tyres swapped, tracking a GEO checked yet car still pulss to the left.

I have been reading forums in the US and its a common issue there and the dealer replaces castors to sort it. there is a TSB too.

Anyone have this with their ISF?

[lotusdave]

sorry, no, mines straight and true. Keep us posted with information though. Do you have an isf? I ask as your photo isn't an isf. Is there anyone in the wider is (non f) forum with the problem? Lots more of those about so more likely to have someone with the same. It must be very annoying not least of which on new tyres as i dare say its not doing them much good and to burn through a set coz of uneven wear is an expensive pastime. Good luck..

[Arqum]

yeah i have an ISF, just never got a chance to change my pic on here.

As there are more ISF's in the States there are loads of posts about this on the forums there. The has been a TSB for this too.

[lotusdave]

are you still under warranty? As i say, good luck.

[Arqum]

No longer under warranty. 1 owner car with 18k on the clock. Full LSH

[lotusdave]

bugger. How have Lexus been so far? Have you had to pay for the investigation so far? The wheel alignment checks, or geo as we call them, on my lotus are two hundred quid a pop. An isf must be the same..

[Arqum]

I've left a message for Lexus service to call me back, but geo was done by WIM.

[lotusdave]

wonder if the dealer can cross check the geo? On a less depressing note, why an isf? Great cars aren't they. (at least they are when they drive straight)

[Arqum]

i dont think a dealer can geo a car adjusting camber and castor like WIM. Why an ISF? Why not? Didnt want the C63 or M3. Still miss my IS200 though......

[lotusdave]

_{these the guys yeah? http://www.wheels-inmotion.co.uk/wheels-alignment.php. If so then, and sorry to repeat myself to a certain extent, then surely they can tell if something is bent, broken or incorrectly set up. I just dont understand how a professional geo team (and they sound like they know their stuff) cant diagnose the problem.... I'm no rac car mechanic or driving god but for the car to pull left, one of the four wheels has to be doing something it shouldn't be.}

[lotusdave]

is replacing the castors a big job? And what's a castor?! (i just drive the darn thing...)

[Arqum]

It's going ths Saturday to be checked over again. They did the geo on the car 1 week after I bought it and it was a dream. Only started after the tyres were changed. Their knowledge can't be beaten. The tracking was done by a tyre place local to me who I have known for years and all looks perfect and with in spec of what Lexus say. WIM is a treck for me so wanted to see if I can sort locally before taking a trip there

[Arqum]

The castors change is a big job according to the US but like I said this problem is unheard of in the UK