(Home) Tyre pressures

Hi
Can anyone tell me the tyre pressures for the Townace (1989)
Thanks
Steve - (#1355) Steve, 4 Nov 01

33 PSI all round is the official figure but contributers to this site favour a figure of up to 40psi. - (#1356) Ian Dunse, 4 Nov 01

Thanks for the info - (#1358) Steve, 4 Nov 01


Good evening everyone,
very simple question, but have gone thru the previous questions and othe sites and can't find an obvious answer.
is there a standard tire pressure recommended for 1992
townace extra, manual, 2w drive please. mine are curently running at 32 psi but the tires seem quite low for all that. thanks in advance for any info.

- (#7997) david lawrence, 13 Apr 03 15:48

Toyota state 33psi but most of us have found this to be too low. Mine is 4WD and so I get some tyre scrub anyway. This can be alleviated by raising the tyre pressure considerably. I now run mine at 42psi. I get better tyre wear and mpg as a result but also get a bit more "bounce" thru the suspension. Try starting at about 36psi and raise them by 2psi say every fortnight until you find a pressure you feel happy with (stop at about 42 though!).

HTH
Ian

- (#7998) Ian Dunse, 14 Apr 03 1:18

A friend has just got back from Australia and said that tyers are pumped up with gas which gives acooler running run temp lower pressure more mpg,has any one heard any think.
regards
John

- (#9034) John, 7 Jun 03 17:25

To the best of my knowledge the air hoses at regular petrol stations are simply air sucked into a pressure storage tank from the outside atmosphere - i.e. the same that you breathe.

I have heard of people running inert gas in tyres, but that is normally for performance situations - particularly in bicycles.

Dave, From Perth Western Australia.

- (#9035) DaveW, 8 Jun 03 20:16

info supplied by a tyre company in australia

in general (95% of the time) tyres are inflated with normal air from a compressor. however, some mine sites prefer to use pure nitrogen gas from cylinders. the sites that use nitrogen generally justify it for safety reasons because the nitrogen restricts inner tyre pyrolysis from either over heated tyres or electrical surges (lightening strikes or power line contact).
there is also some economic justification (which is generally ignored) with the compressed cylinders of nitrogen working out as cost effective as running a compressor (electricity, de-humidifiers, maintenance etc) and the nitrogen in the tyre chamber is usually considerably drier and helps restrict rim corrosion.

- (#9085) ron coe, 10 Jun 03 9:56

After reading this thread I increased the pressures on hiace supercustom from 2.3bar to 2.5bar all round.
Rolls much better and I feel has improved ride
Chris

- (#9086) chris turner, 10 Jun 03 17:23

i went thou and did likewise and 42 psi has made a real difference. thanks for the info Ian

- (#9087) brian squire, 10 Jun 03 17:34

Well that's interesting Ron.

I guess if you could find an economical source it would be worth it.

I recently read an artical in a car mag here in West Aus that did a tyre test and they filled all the tyres with nitrogen. Filled and purged each tyre three times to make sure there was little or no air left in them.
They did it to try to eliminate variables such as different moisture content in the tyres, and also to try to reduce the differences in pressure due to ambient temp and built up temp.

All very scientific, but a bit beyond me!!!!!!

Read it just after posting before?!?!

Dave.
- (#9088) DaveW, 11 Jun 03 21:50

On the same thread but, slightly off the main theme, Chris, or any other owner, could you advise please ? Does the Hiace have torsion bar front suspension or, is it the more conventional coil springs ?

- (#9089) John Davis, 12 Jun 03 2:25

John
My 92 Hiace supercustom has front torsion - I believe like the Townace as front suspension pics I have seen appear the same and have the blanking plugs for grease nipples if wanted - seperate dampers (currently BOGE fitted by supplying garage)
Some have TEMS but mine does'nt).
I imagine it is the same or a beefier version.

At rear - seperately mounted coil spring and shock - though some models have leaf springs as do the ones that are still being manufactured today - have'nt seen leafsprings on the supercustoms I have looked at but they may exist as they do on the other variants
As you know - not the smoothest of rides over bumps at the front end but I am begining to wonder if its an issue of noise transmission from the shock as the cabin goes over the bumps OK - but the noise suggests otherwise - noted with interest how your wheel bearings played a part on yours
Suppose one of the pit falls of older vehicles is that almost everything made of rubber needs replacing to keep it feeling fresh

Not thinking of trading your townace for a hiace are you John?
I can mail you more detailed info on disc if required.
They are great buses though and thanks to this site I'm begining to understand mine now - running wise its improving all the time - everyones advice has been and continues to be invaluable
Chris

- (#9153) Chris Turner, 12 Jun 03 17:21

Thanks Chris for your most interesting comments. No,I am not thinking of changing my vehicle at present, it suits me very well and I am very pleased with it but, my slight paranoia re the front suspension makes me investigate anything which might improve it. I have an on-going experiment with tyre pressures but, I had wondered if the torsion bar suspension was peculiar to the Town/Masterace and whether tyre pressures affected other suspension systems in any dramatic way. I think I have reached the optimum "set up" with the suspension, ie, new s/absorbers,(TEMS), all lost motion eliminated etc. The wheel bearings, to my shame, had been allowed to get too slack (possibly never adjusted) and the correct setting and torquing DID reduce the "thump" which I previously had. I have adjusted the set up of the torsion bar anchorages and am running on the Vanco "80" profile tyres. Also, I removed the suspension grease filler plugs and substituted a piped grease system to, the four inner, top wishbone assemblies, from easy to get at nipples, and I think that all of this has made the suspension a lot better but, due, I agree, to the the location of the driving position, over the wheels and the transmission of vibration through the "metal to metal" torsion bar anchorages, this is the best it is going to get.
Thanks for the mailed CD offer, much appreciated and direct email refers

- (#9154) John Davis, 13 Jun 03 1:45


I have had a quick check through the archives and maybe i am blind, but is there a rference anywhere to tyre pressures? What are the recomended front / rear for laden and unladen. I have put 30 psi in the front and 25 psi in the back.

Jim Paul

- (#11416) Jim Paul, 3 Nov 03 3:19

Hello Jim.

Its all on the archives under Transmission etc\wheels and tyres\tyre pressure.
There is a sticker on the drivers door pillar that gives the tyre size and pressure. "30 psi in the front and 25 psi in the back" is a little low, most people use between 37 and 42 Psi

regards
dave Bright

- (#11417) dave Bright, 3 Nov 03 4:47