Car-lack Tyre-pressure Warning

[MattCinderey]

Just a heads up.

I took my car yesterday for a long deserved clean. When I picked it up last night it felt a bit "hard" on the road...

I checked my tyre pressures this morning (it's best to check them cold) - all 4 tyres had 44psi in them! Now in my opinion, that's dangerous!

I let the excess air down to their normal pressures, 30 front and 31 back.

Just a heads up for Car-Lack customers. "Check Tyres?", "No thank you... and please don't put polish on the gear-stick, hand-brake or foot pedals either."

Matt.

[Wellington]

Suppose it depends who puts the polish on your gear stick.

[smokie36]

Suppose it depends who puts the polish on your gear stick.

Its worthy of a poll. How much pressure would you like applied sir?

[scottbrown]

tiger balm could be painful...

[MattCinderey]

I'm not sure what you guys are on about?... Where is this special car wash? I've never heard of it...

[Rooo]

I am not going there.

[Japhrodisiac]

Low 30's is fine. The dealers are the same, I had my new truck delivered with 50psi all around, and every service they bump it back to 45 or 50. They just read the sidewall and put the max pressure in.

[BigC]

thats interesting cause i bought new tyres a year ago. they are nakered already. they have a bubble in the front left tyre. i changed it 4000 baht. now i have 1 in the other wheel 3 months later.

will have to upgrade to 7000 baht big tyres. i don't really want to but mu road is a night mare. there again. it might be the tyre pressures not helping. surely different pressures for different types of tyres. no ?

[NHJ]

when it comes to tire, the smaller is the tire, the higher is the pressure and a small volume of air (like a bycicle) the bigger the tire, the smaller the pressure with a high volume of air.

normally the max pressure should be written on the tire.

[BigC]

when it comes to tire, the smaller is the tire, the higher is the pressure and a small volume of air (like a bycicle) the bigger the tire, the smaller the pressure with a high volume of air.

normally the max pressure should be written on the tire.

yes thats right u have just jogged my mem

[samuijimmy]

I think the heat is starting to get to everyone.... ???

Maybe take the air thingy to the Toilets next time you go...

[MattCinderey]

False!

This is all wrong I'm afraid. You don't put what in what it says on the side of the tyres. Your car manual will state the correct pressure for your car and size of wheel. It's normally also printed on the inside of the door (where the catch is)

You should also take load in to consideration, i.e. empty load/full load. i.e. half load (couple of passengers) or full load (your truck rear loaded to the full with sand, bags of earth, or the usual whole Thai family)

Under or over-inflated tyres can be extremely dangerous, like my over-inflated ego...

No, but seriously, incorrect tyre pressure is very bad for handling, braking and overall stability of the car. Try taking a corner or having to swerve hard with over-inflated tyres and you'll see...

Both over-inflated and under-inflated tyres can fail and cause a blow out... It can also affect your fuel economy and the life of the tyre. You really want to keep a check on your tyre pressures especially if you're blasting it to Ranong and back in a day in your truck... You don't want a blow out at 160km/h

You want to check your tyres first thing in the morning when they're cold as a warm tyre has warm air in it, giving a higher reading. My protocol now will be to take my car to car-lack last thing in the day, let them over-inflate the tyre, then remove the excess air in the morning

For example, a Mitsubishi Triton fitted with 245/70R16's for a half-load car pressures are: Front 29psi, Rear 29psi. For full load, Front 29psi, Rear 42psi.

HTH,

Matt.

[MattCinderey]

Maybe take the air thingy to the Toilets next time you go...

Ouch! Shit people have died from messing around with high pressure air hoses...

From some various website...

If we turn to the wider question of whether a keisterful of compressed air can kill you, it sure can. The first case reported in the medical literature, in 1904, involved a 17-year-old UK male who was brought to the infirmary in pain after having "got blown up with an air force-pump." The account is not very informative on how this occurred, and you probably don't want to hear a lot of details anyway. Suffice it to say that the guy's guts ruptured in multiple locations, spilling the intestinal contents into the abdominal cavity; peritonitis presumably set in, and three hours after admission he was dead.

That happened quite a bit in the old days. One review of 44 cases published in 1931 found that more than half the victims died. Most incidents were industrial-workplace pranks involving males fooling around with an air hose. In many, perhaps most instances the hose wasn't forcibly inserted; on the contrary, the victim was fully clothed and the hose held to the seat of his pants or otherwise directed at him at close range, the topography of the buttocks acting as a funnel. In a few cases no prankster was involved; the fellow was just trying to blow dust off his clothes. However it happened, the victim's belly typically became painfully distended; after insertion of a hollow needle into the abdomen or initial incision on the operating table he deflated like a popped beach ball, providing welcome but only temporary relief if no attempt was made to repair the internal damage and stave off infection. The 1931 researcher, an MD named Burt, was sufficiently alarmed about the situation to devote a 28-page treatise to the subject, among other things establishing that the pressure required to rupture the intestine was a mere four pounds or so per square inch. The pressure generated by a compressor is many times higher, on the order of 50 to 150 psi, and I venture to say you could push the limit with a bicycle pump.

A 1980 review totted up 93 cases of pneumatic intestinal rupture, but thereafter things seem to have quieted down. Possibly that's because of rising maturity and intelligence in the workforce but more likely in my opinion because the industrial jobs affording access to air hoses were being exported overseas--the first Korean case was reported in 1996. The latest U.S. case I can find, as usual involving a practical joker, is from 2002; his victim, a Georgia carpentry shop employee, survived, but was out of work for three months and ran up medical bills totaling close to $70,000.

To be sure, a key difference between these folks and you is that you filled yourself up willingly whereas the prank and accident victims didn't. Only a handful of intentional self-inflators have been reported, one of whom, interestingly, used a bicycle pump and seems to have suffered no damage, although his doctors certainly freaked. (A later account describes the fellow as mentally unbalanced; while I can understand jumping to this conclusion, the original report expresses no opinion on the man's sanity.) I don't mean to be alarmist--your experiments along these lines were a long time ago, and surely Xbox offers today's youth less perilous ways to amuse themselves. Still, some things one wants to nip in the bud.

— Cecil Adams

I'll stick to the ar*e spray, toilet paper or the "Crusty" dip as I will know call it (thanks for info Crusty)

[samuijimmy]

Yes, hope no one tries the air pump thing ...

It could inflate your ego too....

[BigC]

quality the first feww lines of the ops post is " this is no joke" which it wasn't yet everyone is joking about it quality !

[MattCinderey]

Humour is the spice of life my friend...

[robsamui]

Dear dear dear!

Everybody knows that the more air you put in the tyre the longer it is before you have to pump it up again.

Well.....all the Thai people know this, anyway.

R

Humour is the spice of life my friend...

[starcandle]

Quick heads up here guys, buy yourself a tyre pressure guage and each time you go to top up with fuel, step out and have a quick check. you'll find that you loose pressure during really hot spells, if it's your regular car and you have had it a while doing this will become less frequent as you will learn your cars patterns

[MattCinderey]

Huh? Check first thing in the morning when they tyres are cold at home before you drive it anywhere.