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bpman



Member Since: 21 May 2008
Location: Oslo
Posts: 8069

2008 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black
ZU wobble
Just changed my summer wheels to my winter ZUs (235/85/16 Cooper M&S).

When I took the wheels off my td5, I did not mark them front/rear off/near side (did not see the point).

Put them on my puma and I have a wobble - why ? they were balanced before they were fitted to the td5, how do they go out of balance ?

following on .. i took the puma to the tyre centre and they "balanced" them for me and its no better .. any ideas ?
Post #43924 30th Oct 2010 7:45am
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Laurie



Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897

England 2005 Defender 90 Td5 XS CSW Bonatti Grey
Could be a slightly uneven tread wear from previous fitting.
If so, should go away on it's own.
Try switching wheels round, a couple at a time.
Post #43927 30th Oct 2010 8:54am
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stevie d



Member Since: 09 Nov 2009
Location: Bishops Stortford
Posts: 342

United Kingdom 2003 Defender 90 Td5 SW Alpine White
May just need rebalancing.

Maybe the Puma is more sensitive to balancing then the TD5 - different suspension etc.

(I used have a an Audi A6 which was hyper sensitive to balancing, had to go to a tyre specialist with better balancing kit than the standard otherwise it shaked all day long ) Thumbs Up Defender 90 TD5 Station Wagon
Discovery 3 HSE
BMW 330i Coupe
Post #43931 30th Oct 2010 10:40am
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Laurie



Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897

England 2005 Defender 90 Td5 XS CSW Bonatti Grey
stevie d wrote:
May just need rebalancing.

bpman wrote:
i took the puma to the tyre centre and they "balanced" them for me and its no better .. any ideas ?

Rolling Eyes
Post #43936 30th Oct 2010 12:15pm
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bpman



Member Since: 21 May 2008
Location: Oslo
Posts: 8069

2008 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black
I've booked the puma in for a re-balance on Tuesday .. see what happens
Post #43939 30th Oct 2010 1:47pm
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ken



Member Since: 18 Aug 2009
Location: Banging Birds with my bitches !!
Posts: 4328

United Kingdom 
How do you know they balanced correctly did you see them do you understand the numbers what method did they use how much weight ?

From experience with Zu's & BFG we found the best method was spin the tyre get a reading if over 60gs on inside outside mark the tyre closest to the value break bead rotate tyre 180deg repeat peat process until you get the lowest reading then the best method for adding is centre balancing ( a method where the weight is added to the centre of the wheel width ) no weight is added to to the outta extremities of the rim no an option on saloon cars but works just fine on a Defender shoud with Zu's Confused weirdly the centre of a Zu rim is very close to the inner spoke

Its easier to do than explain most tyre shops will just add weight and not take the time (most tyres have hilo marks on the tyre to start with as well but its not always the best placement).
Post #43942 30th Oct 2010 2:11pm
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Allan



Member Since: 09 Sep 2009
Location: Perth
Posts: 166

Australia 2008 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black
I have had a problem re wheels/tyres on my Puma also. I have had a wheel wobble problem on my Puma since fitting 265/75 m/t Toyo's on 8x16 rims. No matter who balanced them some degree of wobble would persist. Today, after a night on the Censored , I decided to fit the standard rims and 235/85 AT's from the wifes TD5 90 and all is ok. Also no drama's on the 90. The only change to her 90 is less return to centre. Very odd. The Puma did not drive well with the tyre conversion at all.

Allan
Post #43944 30th Oct 2010 2:35pm
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ken



Member Since: 18 Aug 2009
Location: Banging Birds with my bitches !!
Posts: 4328

United Kingdom 
AS alway I will say just because you are told they are balanced are they ? No tyre shop would really let you near the machines because of H&S so you have only to take their word.
Post #43945 30th Oct 2010 2:44pm
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Allan



Member Since: 09 Sep 2009
Location: Perth
Posts: 166

Australia 2008 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black
These guys are tops in West Australia, the owner is a good friend of my sons and the sets up most of the race vehicles here, I think they know what they are doing. Even if they were wrong why does the TD5 have no wobble with the same wheels set on the same axle possitions. Please explain.

Allan
Post #43946 30th Oct 2010 2:54pm
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roel



Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

Netherlands 2003 Defender 90 Td5 PU Caledonian Blue
Get rid off the balancing weights. Use balancing powder. It works always also with dirty tyres.
I use it in my front tyres on my 90 and never have a shaking steering wheel.
I had these tyres before on my Camel Disco and it was great on that one too. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)
Post #43947 30th Oct 2010 2:56pm
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Nidge



Member Since: 27 Jan 2008
Location: Kildare Ireland
Posts: 810

Ireland 2009 Defender 110 Puma 2.4 HCPU Cairns Blue
Re: ZU wobble
bpman wrote:
Just changed my summer wheels to my winter ZUs (235/85/16 Cooper M&S).

When I took the wheels off my td5, I did not mark them front/rear off/near side (did not see the point).

Put them on my puma and I have a wobble - why ? they were balanced before they were fitted to the td5, how do they go out of balance ?

following on .. i took the puma to the tyre centre and they "balanced" them for me and its no better .. any ideas ?



You should have left them on the td5.... !!!! Rolling with laughter

Have had the same issue from time to time and usually sorted by swapping the wheels around. Sometimes when tyres left sitting around they can go out of balance/ shape slightly !!

N.
Post #43952 30th Oct 2010 4:32pm
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ken



Member Since: 18 Aug 2009
Location: Banging Birds with my bitches !!
Posts: 4328

United Kingdom 
Roel hate the stuff same as beads -but in the end if your happy thats all that matters
Post #43965 30th Oct 2010 6:14pm
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SteveS



Member Since: 05 Oct 2010
Location: Devon & Berkshire
Posts: 388

England 2009 Defender 110 Puma 2.4 USW Santorini Black
do you have wheel spacers on one and not the other....you could imagine a situaton where the spacer is not mounted completely concentrically - never used them myself. The other thing that comes to mind is whether you have more wear in the steering on one vehicle - perhaps this is accentuating the small imbalances of even a 'balanced' wheel.

You could always try and find a tyre place that balances wheels whilst fitted to the car.....again I'm not sure if anyone does this these days...apparently you could get it done years ago.

The guy who fits the run-flats on my beemer says that there is a difference between static and dynamic balancing - whatever that means.
Post #43973 30th Oct 2010 8:15pm
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ken



Member Since: 18 Aug 2009
Location: Banging Birds with my bitches !!
Posts: 4328

United Kingdom 
Not too many peeps Static Balance these days Rolling with laughter Andy AJS might though Whistle Only joking Andy Wink
Post #43974 30th Oct 2010 8:38pm
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Allan



Member Since: 09 Sep 2009
Location: Perth
Posts: 166

Australia 2008 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black
No wheel spacers on either vehicle, not legal in Australia. The Puma 110 just doesn't drive as good as the 90 with the wider wheels Question Question Question

Allan
Post #43989 30th Oct 2010 11:33pm
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