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AP-Device - can somebody explain??
https://www.ausmini.com/forums/viewtopic.php?f=2&t=35847		 Page 1 of 2
Author:  Asphalt [ Tue Sep 18, 2007 5:53 am ]
Post subject:  AP-Device - can somebody explain??
Hi there!

Today I`ve found an interesting 76 Mini from Canada.
It is equiped with the "anti-pollution-device" as can bee seen in this picture:

Image

Can somebody please explain how it exactely works?
I know they were fitted to some australian cars too.

Are there any drawings, informations ´bout the exact function and working-principle of this AP-device?

Cheers and many thanks in advance,
Jan

PS: Here´s the Mini:
http://cgi.ebay.com/ebaymotors/ws/eBayI ... 0153766608
Author:  sports850 [ Tue Sep 18, 2007 6:46 am ]
Post subject: 
It's an air pump that pumps fresh air into the exhaust ports to dilute the exhaust emissions so the percentage of pollutants are less even though the engines still producing the same amount of them . Basically it was a way of bending the rules a bit but al it really did was steal power from the motor to drive the pump .
Author:  Mick [ Tue Sep 18, 2007 7:17 am ]
Post subject: 
There was plenty of them over here as well.
Author:  drmini in aust [ Tue Sep 18, 2007 7:24 am ]
Post subject: 
Back in the late `70s emissions were measured in % not grammes/mile or whatever. All this thing really did was dilute the exhaust with air, at the expense of some HP. And use more fuel to do it.
Most parts of this so-called emission control system are now NLA, including the air pump. On the remaining cars with it still fitted, many have rendered it non-operational. :wink:
Author:  Asphalt [ Tue Sep 18, 2007 8:09 am ]
Post subject: 
Haha, that`s so absurd! :D Thank you!

Less % of co by the use of MORE fuel :roll:


From the picture it looks like it is somehow conected to the heating/cooling-system of the car?
Or does the copper-pipe end in the exhaust-port?

I`m still after a drawing (parts-cataloque or something like that). Are there any available? Or more detailed pictures of all the parts involved in the system?

Cheers,
Jan
Author:  drmini in aust [ Tue Sep 18, 2007 8:34 am ]
Post subject: 
OK here ya go, the arrangement blows air into the 4 ports on front of head, these connect into each ex port just above the valve seat.

Image
Author:  Asphalt [ Tue Sep 18, 2007 8:51 am ]
Post subject: 
Wow, many many thanks Kevin! That makes it clear! :) Image
That`s so strange, it`s close to "must have"! :D
(I love strange technical things...)

(And they realy drilled holes into the head to make it work...? :shock: )

Best regards,
Jan
Author:  Timbo [ Tue Sep 18, 2007 9:14 am ]
Post subject: 
I've heard many people claim that by injecting air into the exhaust ports it promotes the further combustion of the unburnt hydrocarbons and makes the exhaust cleaner. Its bollocks, it might help if there was a catalytic converter as well (which there wasn't) it was just a cheat to dilute the exhaust. I've only ever seen one car with a full functioning set of pollution gear.

Tim
Author:  drmini in aust [ Tue Sep 18, 2007 9:15 am ]
Post subject: 
The head is a slightly different casting with bosses provided for the ports.
casting no. for the 1275 version is 12G1316. here's a pic without the plumbing-
Image
Author:  Harley [ Tue Sep 18, 2007 10:05 am ]
Post subject: 
I'm sure I'm not the first 21 year old to say this, but does it have supercharging capabilities? :lol:
Author:  drmini in aust [ Tue Sep 18, 2007 10:09 am ]
Post subject: 
Um...NO. it goes into the EXHAUST ports... :wink:
I guess you could spray fuel in there, have a drip-feed afterburner.... :twisted:
Author:  Asphalt [ Tue Sep 18, 2007 10:12 am ]
Post subject: 
Not if you attach it to the exhaust :D

But maybe:
With the radiator & thermostathousing + the double-belt pulley it`s seemingly a good place/way for a smal supercharger to install (instead of the air-pump)!


Thanks everbody for the enlightenig :D

Best regards,
Jan
Author:  Anto [ Tue Sep 18, 2007 10:43 am ]
Post subject: 
No Harley you're not. I explained this to a mate once, very low output, about as effective as sneezing into the carburettor. :D

Maybe when used on a turbocharger set up it would help increase the boost? :lol:
Author:  drmini in aust [ Tue Sep 18, 2007 11:17 am ]
Post subject: 
I reckon it would reduce power not boost- it has bugger-all flow capability, never mind pressure... :lol:
Author:  Austin850 [ Tue Sep 18, 2007 11:50 am ]
Post subject: 
Anto wrote:
about as effective as sneezing into the carburettor. :D


That depends on what you've been drinking before the sneeze :lol:
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