Author Topic: Spare tire  (Read 1194 times)

September 27, 2012, 07:25:26 AM
Read 1194 times

Veneficus

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Ok now here is a interesting one I have been thinking about for couple of days (mostly because I have 4 worn tires and one mint spare)

your tires are worn down close to the wear marks and you get a flat and have to do 200+K's with the spare on and the spare is brand new

How bad is that for the ODD size tire figure?
2007 2.5XT Manual (and boy did I have to search for manual one)

September 27, 2012, 07:35:20 AM
Reply #1

Manfred

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Very very bad.
Give me your spare tyre and I'll give you a very very worn tyre similar to your other tyres.
Problem solved.

But serioulsy, Im sure it is quite a difference.
Not sure if that will affect the whole AWD thing though.
Pretoria

2011 XT Sportshift
2013 Ford Fiesta Ecoboost (Turbo Triple)

September 27, 2012, 08:45:49 AM
Reply #2

Veneficus

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hehehehe

yes
I hear the Subaru says that all tires should be within 1/4inch which is about 6mm
worn vs new Geolander is about 8mm

As for my spare you can probably have it when I change tires
it's a never been used G900
previous owner clearly did not understand the when you change one tire you should change all 4 (if same size and make)thing or all 5 if you change make

so I have 4 Bridgestone potenza's that will be going the way of the dodo
2007 2.5XT Manual (and boy did I have to search for manual one)

September 27, 2012, 11:00:54 AM
Reply #3

LoopSoosStroop

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I've thought about this quite a bit before.

I suppose that you can run different pressures to make the rolling radius rougly the same, but this will be hard to estimate. Problem is if you write of one tyre in the last half of its life you will allways be out of sync until the other three are done.

I have heard that in Europe they stock worn tyres at some of the tyre places because they have so many all wheel drive vehichles.
2007 XT AT
Midrand - Gauteng

September 27, 2012, 11:16:41 AM
Reply #4

Veneficus

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I know in America they do tyre shaving so if you lose one tire then they can shave a new one down for you.
I looked and there is no places in SA that does it (that I could find at least)

As for replacement later

I already have my repair option in place though
I spoke to outsurance (they insure my car and other stuff too)
I asked them how much it would cost per month to insure all 4 tires on my car so that they will fully pay for replacement of all 4 tires if any one of them gets damaged during their lifetime

They gave me quote for R35 per month for a set of Geolander AT's costing R2400 each
« Last Edit: September 27, 2012, 11:19:12 AM by Veneficus »
2007 2.5XT Manual (and boy did I have to search for manual one)

September 27, 2012, 11:58:16 AM
Reply #5

LoopSoosStroop

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Interesting, R35 is not bad.

Wonder what the fineprint is, what if I write off the tyre on the Richterveld eco-trail?
2007 XT AT
Midrand - Gauteng

September 27, 2012, 01:50:23 PM
Reply #6

Veneficus

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can't say exactly but I did specify quite a few things to be added there

I guess it would depend on what is considered abuse and negligence I guess

you can always ask them :)
2007 2.5XT Manual (and boy did I have to search for manual one)

January 13, 2020, 02:00:01 PM
Reply #7

Rumple

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Ok now here is a interesting one I have been thinking about for couple of days (mostly because I have 4 worn tires and one mint spare)

your tires are worn down close to the wear marks and you get a flat and have to do 200+K's with the spare on and the spare is brand new

How bad is that for the ODD size tire figure?

Hi Veneficus,

In the situation above what distance would it be alright to travel ?
Just curious as im planning a little trip probably 100km dirt road to a main town if i do get into trouble.
Cheers
Rumple

January 13, 2020, 02:21:38 PM
Reply #8

Veneficus

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Hehehehe this was many years ago
After that I have once done about 350km with off size spare fitted
All I did do is limit speed to 80kmh and I have not yet had issues with Gearbox

so if it happens and you have odd size just keep speed below 80
It is what is advised to protect the gearbox
2007 2.5XT Manual (and boy did I have to search for manual one)

January 14, 2020, 09:13:45 AM
Reply #9

Rumple

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So must have been quite a long 350km !
Great to know it is possible. Does it matter where the off size spare is fitted - Front or Rear ?
New to the fozzie so learning as i go.

January 14, 2020, 09:23:29 AM
Reply #10

Veneficus

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Hehehehehe
Main reason why you should not go high speed when driving with off size tire is because your center diff (one in gearbox) does not like large constant variation
So if you go fast (stated above 80 in manual) it increases heat build up in the gearbox which can lead to damage to center diff

As for which wheel to put it on that largely depends on how different your spare tire is
mine was 215/55R17 vs the hateful Michelin's road tires I had on that was 225/50R17 (won't fit those again ever)

So not massive difference but more than preferable by Gearbox
I had it fitted to front but if wildly off (like ultra thin spare) I would fit it to rear

I would have in any case preferred to fit to rear but it was hole in road issue and I damaged to 2 tires and had the left rear with tire plugs in the sidewall
So if I have a tire that might suddenly lose pressure I prefer rear for that as well so I left that one there and fitted the decent spare in front
2007 2.5XT Manual (and boy did I have to search for manual one)

January 14, 2020, 10:28:28 AM
Reply #11

Rumple

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I got Geolandar G95 225/55/R17 all round and the spare is still mint so not as big a difference as your spare tyre situation.
I was thinking of trying something new but probably just worth getting the same tyres again.

Nice to know why, thanks for taking the time and explaining !