Misuse of track pump?

[Levo-Lon]

I can remember when all this was fields..

i use a track pump on the van and car as i find garage pumps are usually wrong

 

[Cubist]

Now strangely enough I was looking for a kit for that this morning to give as a Christmas present. Mine were given that as children and they had hours of fun seeing how far it could go, I think it included water?

Yep, the water forced out of the nozzle by the compressed air provides thrust. For best effect you want max thrust for a short burn time, so lots of pressure but not too much water, otherwise the flight becomes erratic as it's hard to stabilise the rocket under power. Great fun though....

 

[biggs682]

yes but took ages

 

[subaqua]

I can see a project coming on. I have air at 232 Bar readily to hand (thats 3500 psi in old money)
. What could possibly go wrong?
I already use it to pump tyres and wors rather well....

....I should add the tyre system reduces it to 150psi first

You not got any 300 bar scuba cylinders.

In an amazing cross forum posting . Don't do it with a pony cylinder It will kill you !!!

 

[DaveReading]

It gives your arms and shoulders a good workout because it doesn't deliver the volume of a foot pump.

I've pumped up car tyres from flat on occasion, and my Joe Blow does it a lot quicker than my foot pump.

 

[classic33]

Done the rear tyres of a John Deere with one.
Took a bit longer than a bike tyre though!

 

[cyberknight]

I've pumped up car tyres from flat on occasion, and my Joe Blow does it a lot quicker than my foot pump.

Joe Blow?
Misuse of a track pump
@Fnaar

 

[DaveReading]

Joe Blow?
Misuse of a track pump

I'll consider myself suitably censured.

 

[Joey Shabadoo]

If you do it too often you'll find that the bore of the pump will wear and get oversized which will mean buying a new one again!!!!!!!!!!!!!!!!!!!!!!!!!!!

paging @Fnaar

 

[Andy_R]

..........Couldn't get that much pressure in it before it let go and up. A proper release mechanism would be good..

Have a look here, for lots of ideas, including one of mine.

 

[snorri]

Everyone had a track pump to pump up car tyres at home before garages had electricity to run a compressor to fill a tank with compressed air to feed an airline.
It was usually the handyman who kept the tyres pumped in these days.

 

[vernon]

I'll be using my track pump to start my pulse jet when I bring it back from school.

 

[Profpointy]

You not got any 300 bar scuba cylinders.

In an amazing cross forum posting . Don't do it with a pony cylinder It will kill you !!!

Thanks for concern re: pony cyclinder; don't worry, I dive twin twelves and a stage usually. Pony is my fiancee's kit - and she doesn't really do UK diving. Maybe I should use a 7 for the car tyre gizmo to be on safe side as it's got more gas - but 80% O2 might not be optimum gas.


..... to everyone else, sorry for the obscure in-joke crossing over from a dive forum

 

[subaqua]

Thanks for concern re: pony cyclinder; don't worry, I dive twin twelves and a stage usually. Pony is my fiancee's kit - and she doesn't really do UK diving. Maybe I should use a 7 for the car tyre gizmo to be on safe side as it's got more gas - but 80% O2 might not be optimum gas.


..... to everyone else, sorry for the obscure in-joke crossing over from a dive forum

80% has it's uses. Lighting barbecues is one .
But yes things are suboptimal

 

[pawl]

Has anyone pumped up their car tyres with their track pump? Am I bonkers to be even considering this? Answers on a postcard to the usual address please.

Yes.Find it quicker than a foot pump.