Thread: Interesting, Odd or Funny Pics II.

Originally Posted by sashadidi

and all those other castles so close to the motorways...........................

Exactly Sash, it would have made it much easier for all warring parties to get quickly from one manor to the next so not really such a bad thing at the end of the day, just a lot of fly tipped builder's rubble left untidily everywhere they went..

Originally Posted by gavinwibrow

Different principle, but reminds me of the Menzel invention to pump up tyres by temporarily replacing a spark plug. Didn't seem to work too well with diesels?

I also remember that not that I ever had reason to use one. Good idea in principle though except loading one's tyre with a Petrol Bomb.

Originally Posted by JDNSW

The exhaust does not travel along the hose, as explained by austastar! So what are you talking about?

Apologies, I missed that one.

Originally Posted by 4bee

I also remember that not that I ever had reason to use one. Good idea in principle though except loading one's tyre with a Petrol Bomb.

A "Petrol Bomb" cannot get anywhere near one's tyre. The spark plug pump has a small rubber diaphragm open to the the outside air. The engine piston moving up and down causes the diaphragm to flex up and down, sucking in clean air and pumping it into a hose connected to the tyre valve.

A couple of problems with them are:
1. the bloody things get very hot and it is easy to burn yourself when removing them, especially on a V8.

2. Some small 4 cylinder engines object to running on just 3 cylinders and need to be revved a bit to keep running. For many years, long before small 12 volt air compressors, they were used far and wide. On the farm the little grey Fergie was the mobile tyre pumper'upper as it had a hand throttle and could be driven around to wherever needed.

3. Yes, the popular advent of diesel engines meant finding an alternative.

Originally Posted by sashadidi

and all those other castles so close to the motorways...........................

Reminds me of the time I was in the pub outside Bunratty Castle. The barmaid said there was an American lady in the day before, who asked why they had built the Castle so close to the highway.

Originally Posted by gavinwibrow

Different principle, but reminds me of the Menzel invention to pump up tyres by temporarily replacing a spark plug. Didn't seem to work too well with diesels?

Wouldn't have been a problem for Blknight, the dealer billed him for five spark plugs for a Td5!

Hi,
I made one from an old spark plug.
The 2 cylinder BMW bike would run ok on one cylinder with the fuel in the carby float. The carby on the pumping cylinder had the fuel bowl unclipped. Thus only clean air.
Never used it in anger in over 300k km.
A test run on a car tyre pumped it from flat to 30psi in 15 seconds.
Yep it got hot.
Cheers