Relocating spare tyre under car.

Ken McNoe · Post by **Ken McNoe** » Tue Aug 09, 2005 8:58 pm

Hello all.

From the sounds of it I might have a hole in my muffler (woohoo) and

since the other half has said that if this happens we should relocate
the spare tyre under the car I thought someone out there might know more
about this.

Has anyone (preferably in Auckland) had this done??
How much did it cost?
Where did you get it done?
Is much involved in removing the wheel should I have to??

Cheers

Ken McNoe

Phone: 09 483 8237
Mobile: 021 536 911

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Date: Tue, 9 Aug 2005 21:21:00 +1200
From: ~Jeff~ <jifjif@gmail.com>
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Subject: Re: Relocating spare tyre under car.
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relocate it to the garage and save some weight while you're at it ! =)

On 8/9/05, Ken McNoe <kenmcnoe@xtra.co.nz> wrote:
[...]

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Date: Tue, 9 Aug 2005 21:26:00 +1200
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someone here was looking for light wheels a while back - I'd be all
over these if I was still single (and feeling flush !) :
http://www.trademe.co.nz/Trade-Me-Motor ... 830616.htm

If the description is right, they're sticky race tyres on sub-5kg
forged lightweight wheels ... <drool>

On 8/9/05, ~Jeff~ <jifjif@gmail.com> wrote:
[...]

EricW · Post by **EricW** » Tue Aug 09, 2005 10:00 pm

Hi Ken,

If you go to the web site www.mx5club.org.nz and click on "service &
maintenance" in the drop down menu, about half way down the list is a link
called (I think) "double your boot space"

This link provides a full description of the process, complete with photos.

Eric

Ken McNoe · Post by **Ken McNoe** » Tue Aug 09, 2005 10:38 pm

Hi Eric

Thanks for that, I have that link, was hoping to talk to someone who has
had it done in Auckland to find more details on cost etc, and where they
had it done

=)

Ken McNoe

Phone: 09 483 8237
Mobile: 021 536 911

Okibi · Post by **Okibi** » Tue Aug 09, 2005 10:44 pm

I wonder if you could get some sort of wheel cover to stop the rubber on
your spare tyre cooking next to your muffler.

My 2 cents.

- Dave.

Ken McNoe · Post by **Ken McNoe** » Tue Aug 09, 2005 10:52 pm

Yeah Cheers Dave,

I need to find more about the relocation. I understand that it has been
done before, (I checked out the website) but I would like to talk with
someone who has had it done. I don't believe (from what I can
understand) that there is any issue with the tyre over heating.
Probably has something to do with the way that the muffler is relocated.

Ken McNoe

Phone: 09 483 8237
Mobile: 021 536 911

Grant · Post by **Grant** » Tue Aug 09, 2005 10:55 pm

When I had mine done here in Blenheim, the exhaust man put a small heat
shield on the muffler to reduce heating the boot floor and also to keep heat
off the spare. This worked well.

Grant.

Ken McNoe · Post by **Ken McNoe** » Tue Aug 09, 2005 10:57 pm

How long ago did you have yours done Grant? Do you remember how much it
cost (ballpark figure)?

Ken McNoe

Phone: 09 483 8237
Mobile: 021 536 911

Grant · Post by **Grant** » Tue Aug 09, 2005 11:26 pm

I had mine done about 2 years ago. My car already had a smaller muffler so
didn't need to buy a replacement. The muffler was repositioned to the right
side with appropriate rebuilding of the rear part of the exhaust pipe to
fit. The muffler used was for an early model Honda Accord apparently. With
the Genie header, no cat, and the smaller rear muffler the exhaust was
somewhat noisier than original but not too bad.
No problem with droning or resonances at cruising speeds.
The cost was abou $90.00 if I remember correctly and I thought very
reasonable for the work done. No problems after having travelled about
60,000km since then either, sometimes on unsealed roads as well. Never had
to use the spare, but I could remove and re fit the spare under the floor by
myself. If I can do that then anybody else should not have a problem
(arthritis sometimes limits my movement).
With the spare under the floor you can even fit a 17" CRT monitor in the
boot. Can't do that with my NB! Thankfully most people now want LCD
monitors.

Grant.

poison · Post by **poison** » Tue Aug 09, 2005 11:34 pm

Maybe, but check out the guys feedback, 3 trades, 2 not completed for 'some
reason' and the other was very bad.

Gazza
"PO1SON"

Mike Jolley · Post by **Mike Jolley** » Wed Aug 10, 2005 6:32 am

Article in miata garage from memory, mike

MX5PWR · Post by **MX5PWR** » Wed Aug 10, 2005 7:17 am

Hi Ken, Ring Don at Autowayservices in Hamilton. He has done a lot of them
even his own car whivh is a recommendation. His ph is 07 8475484.

Regards Nigel

Post by **simple** » Wed Aug 10, 2005 1:56 pm

Ken wrote:

From the sounds of it I might have a hole in my muffler (woohoo)
and since the other half has said that if this happens we should
relocate the spare tyre under the car I thought someone out there
might know more about this.

Searching the mx5club archives (via google), I've found the email I
wrote when I replaced mine:

http://www.mx5club.org.nz/emaillists/nz ... 2/msg01535.
sht

You're welcome to look at my install if you want - I currently live
some of the time in Glenfield and some of the time on East Coast Rd.
Email me to arrange a visit...

Karl.

Ken McNoe · Post by **Ken McNoe** » Wed Aug 10, 2005 5:30 pm

Hey Karl,

Sounds great, thanks heaps.

Email me your details direct, or give me a call on the numbers below to
arrange a time that suits you.

Ken McNoe

Phone: 09 483 8237
Mobile: 021 536 911

Ken McNoe · Post by **Ken McNoe** » Wed Aug 10, 2005 5:36 pm

Hey Karl,

Sounds great, thanks heaps.

Email me your details direct, or give me a call on the numbers below to
arrange a time that suits you.

Ken McNoe

Phone: 09 483 8237
Mobile: 021 536 911

GEEMCB · Post by **GEEMCB** » Wed Aug 10, 2005 7:19 pm

I investigated this about 12 months ago ... (un)fortunately my exhaust
system is holding up just fine so there's no real excuse to do the mod.

I talked with the guys at Pitstop in Wairau Rd Glenfield who said that
they'd done the mod a couple of times before. For a full replacement
including appropriate muffler / resonator(s) - can't recall exactly what
they proposed - the quote was about $400. This was for a 2 inch pipe from
the cat back. Obviously an old price now & would depend on specifics. I
think the guy's name was John. They are on 444 8082.

Out of interest I dropped in at Midas just up the road - wouldn't touch it.

Regards,
Greg
1990 V Special

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Date: Wed, 10 Aug 2005 20:54:33 +1200
From: ~Jeff~ <jifjif@gmail.com>
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Subject: Re: Relocating spare tyre under car.
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The guys at Al's Mufflers near Wairau Park are really good too, they
sponsor a few of the other car clubs around the place.

On 8/10/05, Greg <gregmcbain@woosh.co.nz> wrote:
[...]

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Date: Wed, 10 Aug 2005 21:52:12 +1200 (NZST)
From: Peter Mayes <blankpete@yahoo.co.nz>
Subject: Re: Relocating spare tyre under car.
To: MX5List <mx5list@mx5club.org.nz>
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I'm not intentionally lowering the tone of the list,
but apparently the new mini convertibles come with no
spare tyre at all... just four regular tyres you can
drive on even when deflated.

- Pete <--- wondering about the performance of said
tyres when deflated!

--- ~Jeff~ <jifjif@gmail.com> wrote:

[...]

EricW · Post by **EricW** » Wed Aug 10, 2005 9:57 pm

Hi Karl,

I have been contemplating this for a while as well, although our exhaust is
as sound as a bell, could I come and have a look at your set up sometime?

Regards

Eric

EricW · Post by **EricW** » Wed Aug 10, 2005 10:38 pm

Quite a few new European cars are coming out with this , I believe that most
new BMWs have "run flat" tyres now, and of course the new Mini is from that
stable.

My understanding is that the tyre has containers of lubricant inside, which
prevent heat build up due to friction. They are supposed to work very well
but need special rims to run on, it's a "whole wheel" concept, not just the
tyre.

I dont know how long they can run flat for, or whether they can be re-used
once they have run flat. They certainly will get you to a tyre repair shop.

(If you have ever tried to change a tyre on a 5 Series BMW, in the rain, in
your best suit, you will appreciate what a priceless quality that is! The
wheel sits on a close fitting hub, which has a lip to ensure positive
centring of the wheel. It also ensures that you need to be built like David
Tua to get the damned thing off. The BMW handbook is remarkably unhelpful
with any advice on tyre changing, I suppose that they think that few BMW
owners will actually change their own tyres. They do point out a few things
that you should tell your valet service, so obviously only plebian owners
such as myself are expected to wash their own car as well)!

Eric

DBM58 · Post by **DBM58** » Thu Aug 11, 2005 8:48 am

Has anybody had experience of having a repair done on a punctured tyre that has has been temporarily fixed using the "Repair in a can" method? Can the tyre be repaired properly afterwards? Does it leave the inner cavity of the tyre in such a messy state that tyre companies refuse to deal with it?

Thank you for your help

Best regards

David Moughtin

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Subject: Re: Relocating spare tyre under car.
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It can be fixed, it's just that they hate it cos it does make a mess.
They appreciate it if you tell them about iti before hand too,
otherwise it kinda farts in theiri face when they break the tyre off
...

On 8/11/05, David Moughtin <Davidm@snackmate.com> wrote:
[...]

Jon Addison · Post by **Jon Addison** » Thu Aug 11, 2005 9:47 am

I think all new BMWs have run-flat tyres - certainly the 1 series and
new 3 series do. The book says you can do 150km at up to 80km/h on
them. My understanding is that they rely on stiff sidewalls to achieve
this - don't know about internal lubricants.
A side-effect of the stiff walls is apparently some ride harshness.
Acquaintances who have driven a lot of them say, for example, a 1
series on standard 16in rims is a lot nicer than on optional 17in ones.
Presumably the larger wheels run lower-profile tyres.
Included with the run-flat tyres is a tyre pressure monitoring system.
Unlike the systems for heavy trucks, which use pressure sensors and
radio transmitters, the BMW one measures tiny differences in wheel
rotational speeds, I guess through the ABS sensors, to detect a soft tyre.
Jon

On 10/08/2005, at 10:38 PM, Eric & Ann West wrote:

[...]

Post by **zorruno** » Thu Aug 11, 2005 1:58 pm

Ken wrote:

From the sounds of it I might have a hole in my muffler (woohoo)
and since the other half has said that if this happens we should
relocate the spare tyre under the car I thought someone out there
might know more about this.

Just a note about doing this (not specifically for you Ken, as it sounds
as though you are doing your homework on it) - quite a few people have
done exhaust mods and been more than a little disappointed with the
sound of their exhaust afterwards.

In my opinion, if you are going to attempt it, have a listen to someone
else's that has the exact same setup. Unless a good setup is chosen,
you will likely end up with a much louder and possibly buzzier exhaust
tone (which may or may not be what you want). It is not usually as
simple as bolting on a small muffler in place of your original.

Remember the good people at Mazda (all hail the 1980s Mazda engineers)
spent months producing their idea of a perfect exhaust note, and other
aftermarket companies (e.g. FM in the US) still spend a lot of time
evaluating & tuning different exhaust systems to sell.

cheers
zorruno

Ross Bryon · Post by **Ross Bryon** » Thu Aug 11, 2005 3:17 pm

I did the spare tyre relocation a few months ago... I had Woolf
Mufflers do the exhaust system... to get a really good sound which
wasn't a "Japanese tin farty" high note and also wasn't too loud or
vibrating under the seat, they made most of the straight-pipe section
from two long resonators forward of the chicane-like wiggle pipe to
get to the much smaller/shorter muffler at the right side.

The sound is, to my ear, just right... definitely retro 50's sports
car but well-mannered so it doesn't "blat" down the street... a kind
of aggressive purr just loud enough to put a smile on your face.

While Woolf's charged about $500 for this system, I believe it was
money well spent... They got it just right first time... I'd rather
go to pros for this kind of work than budget cowboys.

As for the actual location of the spare, I have never liked the
"popular" solution of using the existing hole in the boot floor and
hanging the tyre of-centre from one of the lug holes... for two
reasons: I don't think a weight as heavy as the spare should be hung
from a washer-sized section of the boot floor (just too much weight
hanging from too little area)... and I think it is silly to hang
something off-centre and create more strain on the hanging point from
the resulting twist on the bolt...

So... my tyre is hung (with the original centre flange piece) from a
threaded rod welded a piece of flat metal attached to the boot floor
with a load-speading area of about 50-60 sq cms (much larger than a
big washer)... there's a large butterfly nut at the bottom with an R-
clip through the threaded rod preventing the butterfly nut from
unscrewing.

Though I had to drill a new hole through the boot floor to position
the tyre correctly, I am much happier with this more secure arrangement.

Ken, if you are interested, you're most welcome to come around (Herne
Bay) and have a look at all this.

Cheers,

Ross Bryon
1991 BRG V-Spec Roadster | OL MAN |
Auckland

On 11 Aug 2005, at 1:58 PM, zorruno wrote:

[...]

Ken McNoe · Post by **Ken McNoe** » Thu Aug 11, 2005 3:22 pm

Thanks Heaps Ross,

I might take you up on that offer. I am just waiting to hear back from
Al's Mufflers, they seemed to know exactly what I needed, and quoted
about $280.00, which I thought seemed a fantastic price. Seems they
have done a number of them before.

Will keep you informed.

Ken McNoe

Phone: 09 483 8237
Mobile: 021 536 911

Post by **simple** » Fri Aug 12, 2005 10:50 am

Greg wrote:

I talked with the guys at Pitstop in Wairau Rd Glenfield who said
that they'd done the mod a couple of times before. For a full
replacement including appropriate muffler / resonator(s) - can't
recall exactly what they proposed - the quote was about $400. This
was for a 2 inch pipe from the cat back. Obviously an old price
now & would depend on specifics. I think the guy's name was John.

John does all my exhaust work!

That's only two different jobs, but it's still all the exhaust work
I've ever had done on my car

Anyway, I was impressed with his work - he seemed to know what he was
doing and how to use his tools, without mucking around. He was
helpful & did things the way I wanted them, rather than just treating
me as the person who sources the money. I'm sure you can find more
serious craftsmen for more serious money, but if you're looking for a
competent job at a decent price, I wouldn't hesitate to recommend
him.

Karl.

EricW · Post by **EricW** » Tue Aug 16, 2005 8:21 pm

Just a silly thought, but, here you are, with yourself, the Memsahib, a full
boot, the space saver under the floor of the boot, in the middle of a wet
horrible night, with a puncture, about 50 km from the nearest town, in the
middle of the Desert Road.

Having got thoroughly soaked changing the tyre, you now have the said, self,
Memsahib, and full boot, plus a cockpit full of tense attitude, and a wheel
that nobody wants.

Where the heck do you put the full size wheel?

This appears to be another example of a Ken McNoe "Cardiac Action Potential"
situation or, at the very least, a week of the "silent" treatment, after
said Memsahib has nursed a wet and muddy wheel all the way to Waiouru.

What do you guys do with it?

Eric

animalmagic · Post by **animalmagic** » Tue Aug 16, 2005 8:38 pm

a week of the "silent" treatment

Count your mercies. In my case the ear bashing is merciless and
continues 20 years after the event!

--
Regards Terry

Dilbert's Words of Wisdom: I don't have an attitude problem.
You have a perception problem.

--

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