[Healeys] 100 Draft tube

Steven Kingsbury airtightproductions at icloud.com
Thu Apr 29 10:05:53 MDT 2021


That's a matter of opinion! At a car show once, I met a lady with a small mouth TR3 and we decided to go get a drink. She said she would follow me and once we got to our destination and parked, she came up and said "this is going to sound odd, but I love the smell of driving behind old cars"! We've been friends ever since.
Steven Kingsbury
BN1

On April 29, 2021 at 8:11 AM, Michael Salter via Healeys <healeys at autox.team.net> wrote:


The problem with such "Road tubes" as they were called in my day is the smell. I'm old enough to remember what it was like to follow cars with them .... they stink!!


M


On Thu., Apr. 29, 2021, 10:56 a.m. Roger Grace, <roggrace at telus.net> wrote:

Yes, this is how I vent my BJ8.
Never thought of using a fan to test it ... good idea MS !
rg





On Thu, Apr 29, 2021 at 7:09 AM Michael Salter via Healeys <healeys at autox.team.net> wrote:

Bernoulli would have been proud of you. 👍👍


M


On Thu., Apr. 29, 2021, 9:05 a.m. healeyguy--- via Healeys, <healeys at autox.team.net> wrote:

Listers 
I attempted to add a 7 second video of a demonstration of how a draft tube works but it was rejected on the list.  Probably file size.  Anyway wanted to show the effectiveness of a draft tube in operation. 
Had my shop fan blowing parallel with the floor (car in motion), a empty paper towel tube and a strip of Kleenex tissue.  Cut one end of the tube at an angle, about 30 degrees. Held the tissue paper over the upper square end of the tube and slowly lowered the angle cut end vertically  into the fan wash, Only had to lower the tube less that 2 inches  and the tissue was sucked down the tube.  The engineers way back when knew what they were doing with regard to ventilating the engine in a very simple but not very environmental way. 
As Mr Dylan once said. "Ah, but I was so much older then, I'm younger than that now..."  :)
P
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