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Author Topic: Can someone help with diagnosis  (Read 1094 times)

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dave the builder

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Re: Can someone help with diagnosis
« Reply #45 on: 29 August 2019, 18:50:00 »

Should have been free ::)
A mere pittance. I CBA dealing with the clowns at Vauxhall, I'd rather have it done and dusted in half a day.

I'm beginning to wonder if Uncle STEMO is actually OOF's wealthiest member rather than Lord Opti.  :-\  ::)
148? I doubt Opti would be bothered bending down to pick that up if it was lying in the street.  ;D

Oh I wouldn't be so sure about that Uncle STEMO.  :-\  ::)

He's a tight old git, which is why he is so rich!  :)
Opti must be loaded if he can afford to let his wife drive that big ,posh ,thirsty Corsa
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ronnyd

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Re: Can someone help with diagnosis
« Reply #46 on: 29 August 2019, 18:59:57 »

Should have been free ::)
A mere pittance. I CBA dealing with the clowns at Vauxhall, I'd rather have it done and dusted in half a day.

I'm beginning to wonder if Uncle STEMO is actually OOF's wealthiest member rather than Lord Opti.  :-\  ::)
148? I doubt Opti would be bothered bending down to pick that up if it was lying in the street.  ;D

Oh I wouldn't be so sure about that Uncle STEMO.  :-\  ::)

He's a tight old git, which is why he is so rich!  :)
Opti must be loaded if he can afford to let his wife drive that big ,posh ,thirsty Corsa
Doesn,t his SIL drive, er throw and old laptop? :-X
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terry paget

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Re: Can someone help with diagnosis
« Reply #47 on: 10 September 2019, 17:07:44 »

What size were the old tyres, and where are they now ?  ;D
225/45/17's, no good for a tadpole small frog.  ;D
Same size as on my Vectra 1.8. They gave me an awfully bumpy ride. I have today swopped them for 225/55R16s on Omega wheels, and the car is noticeably quieter and more comfortable.
All my Astras are on 205/55R16s, they are comfortable enough. I see in the Astra brochure the 17" wheels are available as an option in the Sport pack, which is standard on the 2.0 16v Turbo/1.9CDTi 16v (150PS) models.
My sporting days are over, now I seek comfort and quiet.
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Doctor Gollum

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Re: Can someone help with diagnosis
« Reply #48 on: 10 September 2019, 17:39:16 »

The wheel geometry is wrong. Ideally you need to source the Vectra C 16" wheels and tyres... https://www.ebay.co.uk/itm/VAUXHALL-ZAFIRA-B-VECTRA-C-16-INCH-STEEL-WHEEL-2160131-2-5-MM-TREAD-215-55R16-/333324552314 for example...
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terry paget

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Re: Can someone help with diagnosis
« Reply #49 on: 10 September 2019, 17:46:23 »

This was discussed before, and I never understood in what way the geometry was wrong. I was advised the Omega steel spare wheels would be all right. I reckonned other Omega wheels should be OK, as long as nothing fouled anywhere. Is it the offset? It drives all right, steering seems unchanged.
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Doctor Gollum

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Re: Can someone help with diagnosis
« Reply #50 on: 10 September 2019, 17:55:29 »

Offset, wheel width and tyre size ;)

Manual lists suitable wheel and tyre sizes ;)
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Andy B

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Re: Can someone help with diagnosis
« Reply #51 on: 10 September 2019, 18:09:52 »

Offset, wheel width and tyre size ;)

 ......

so .... apart from offset, wheel width & tyre size what's wrong with Omega steel spare wheels?  ::) ::) ::)
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Nick W

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Re: Can someone help with diagnosis
« Reply #52 on: 10 September 2019, 18:31:03 »

Offset, wheel width and tyre size ;)

 ......

so .... apart from offset, wheel width & tyre size what's wrong with Omega steel spare wheels?  ::) ::) ::)


They do have the correct 5 hole PCD.........
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Andy B

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Re: Can someone help with diagnosis
« Reply #53 on: 10 September 2019, 18:46:59 »

Offset, wheel width and tyre size ;)

 ......

so .... apart from offset, wheel width & tyre size what's wrong with Omega steel spare wheels?  ::) ::) ::)


They do have the correct 5 hole PCD.........

 ;D ;D ;D
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dave the builder

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Re: Can someone help with diagnosis
« Reply #54 on: 10 September 2019, 20:34:11 »

Terry had 225 wide tyres fitted anyway from his post above
the offset difference is tiny
rolling radius is within the scope of the 9mm tyre wear possibility

calculator here clicky

Terry get the actual offset that is stamped on the wheels and width of wheel 7J  :-\  :y

I doubt Terry will be pushing the car hard enough for any geometry issues on a 11 year old car ,pottering about  ::)

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Doctor Gollum

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Re: Can someone help with diagnosis
« Reply #55 on: 10 September 2019, 21:46:32 »

Terry had 225 wide tyres fitted anyway from his post above
the offset difference is tiny
rolling radius is within the scope of the 9mm tyre wear possibility

calculator here clicky

Terry get the actual offset that is stamped on the wheels and width of wheel 7J  :-\  :y

I doubt Terry will be pushing the car hard enough for any geometry issues on a 11 year old car ,pottering about  ::)


I doubt his insurers would be quite so Dr Pepper about it :-\
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Nick W

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Re: Can someone help with diagnosis
« Reply #56 on: 10 September 2019, 21:56:29 »

Terry had 225 wide tyres fitted anyway from his post above
the offset difference is tiny
rolling radius is within the scope of the 9mm tyre wear possibility

calculator here clicky

Terry get the actual offset that is stamped on the wheels and width of wheel 7J  :-\ :y

I doubt Terry will be pushing the car hard enough for any geometry issues on a 11 year old car ,pottering about  ::)


Get the offset in particular wrong, and you'll feel the issues when creeping out of a parking space. Although lots of people get away with badly specified wheels, advising someone to just try them is stupid. Using unsuitable wheels/tyres just because you've got a stash of them is equally bad. Such stashes of tyres tend to be well past their best if not actually dangerous as well.


J is the bead profile and has nothing to do with the width, although they're usually quoted together.
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terry paget

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Re: Can someone help with diagnosis
« Reply #57 on: 10 September 2019, 22:48:26 »

Offset, wheel width and tyre size ;)

Manual lists suitable wheel and tyre sizes ;)
The manual lists a broad range of tyre sizes, from 195/65 R 15 to 225/45 R 18, together with tyres pressures for many load options. The only mention of wheels is the tightening torque of 110Nm. Winter tyres size 235/35 R 19 are also possible.
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Nick W

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Re: Can someone help with diagnosis
« Reply #58 on: 10 September 2019, 22:52:29 »

Offset, wheel width and tyre size ;)

Manual lists suitable wheel and tyre sizes ;)
The manual lists a broad range of tyre sizes, from 195/65 R 15 to 225/45 R 18, together with tyres pressures for many load options. The only mention of wheels is the tightening torque of 110Nm. Winter tyres size 235/35 R 19 are also possible.


It doesn't mention how to measure the bearing clearances either, because it's utterly unnecessary information for most users. Ever met someone who doesn't know if their car is FWD or RWD or what it means? They're most of the drivers out there.


Tightening torque is a function of the M12x1.5 bolts, not the wheels.
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Doctor Gollum

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Re: Can someone help with diagnosis
« Reply #59 on: 10 September 2019, 23:10:47 »

Page 204, in a box in the middle column :-X
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