Prototype C4 A.I.R. Pump completed :)
Thread Starter
Burning Brakes
Joined: Jul 2003
Posts: 922
Likes: 1
From: Brisbane Queensland, Australia
Photos of my Prototype C4 A.I.R. Pump completed :)
My prototype A.I.R. Pump after much deliberation all week is finally done!
I had it totally gutted by an engineer; (J.O.H. Engineering in Ipswich, QLD, Australia; phone 07 3282 2194 - Tell John I sent you!)
It uses the original housing (AND the original bracket which I like, that I've polished) and now has two 3/4" aluminium discs, Mig welded inside with a one peice solid steel shaft (17mm thick) running all the way which has been milled and turned to accomodate BIG sealed bearings that support BOTH ends! (part # 6203 RSR)
AT LAST! The pictures as promised
It is now a large freewheeling pulley without any drum etc inside, which was the better option given that the original bearing surfaces were shot.
:hurray:
* UPDATE* As of today I've now done 600miles on the new pump; NO troubles!!
[Modified by smacko, 11:33 PM 8/28/2003] :hurray:
[Modified by smacko, 12:23 AM 8/29/2003]
I had it totally gutted by an engineer; (J.O.H. Engineering in Ipswich, QLD, Australia; phone 07 3282 2194 - Tell John I sent you!)
It uses the original housing (AND the original bracket which I like, that I've polished) and now has two 3/4" aluminium discs, Mig welded inside with a one peice solid steel shaft (17mm thick) running all the way which has been milled and turned to accomodate BIG sealed bearings that support BOTH ends! (part # 6203 RSR)
AT LAST! The pictures as promised
It is now a large freewheeling pulley without any drum etc inside, which was the better option given that the original bearing surfaces were shot.
:hurray:
* UPDATE* As of today I've now done 600miles on the new pump; NO troubles!!
[Modified by smacko, 11:33 PM 8/28/2003] :hurray:
[Modified by smacko, 12:23 AM 8/29/2003]
Thread Starter
Burning Brakes
Joined: Jul 2003
Posts: 922
Likes: 1
From: Brisbane Queensland, Australia
Re: Prototype C4 A.I.R. Pump completed :) (MrNuke)
Because most of the home-made jobs I've seen look a bit 'dodgy';
and to get one from a US based corvette supplier landed here in OZ would cost at least 4 times what this operation cost me.
PLUS; there are two bearings supporting the load on the pulley, not just one...long life is the goal.
Thanks for your response :yesnod:
and to get one from a US based corvette supplier landed here in OZ would cost at least 4 times what this operation cost me.
PLUS; there are two bearings supporting the load on the pulley, not just one...long life is the goal.
Thanks for your response :yesnod:
Le Mans Master
Joined: Apr 2000
Posts: 6,341
Likes: 1
From: Shelton CT
Re: Prototype C4 A.I.R. Pump completed :) (smacko)
Ohh.. I didn't pick up on the fact you were an Aussie..
I can understand trying to make your own then..
I am still wondering though about your design in using dual bearings and the original housing. The Breathless design and others using the same principal setup are being raced hard on cars and on daily drivers without a hitch for years. I am sure a local machine shop could make it for you for less than $100.
Don't get me wrong, I like the fact you are making it yourself and all, not saying nothing bad, but sometimes, the simpler design is the one to stick with. :cheers:
I can understand trying to make your own then..
I am still wondering though about your design in using dual bearings and the original housing. The Breathless design and others using the same principal setup are being raced hard on cars and on daily drivers without a hitch for years. I am sure a local machine shop could make it for you for less than $100.
Don't get me wrong, I like the fact you are making it yourself and all, not saying nothing bad, but sometimes, the simpler design is the one to stick with. :cheers:
Drifting
Joined: Apr 2001
Posts: 1,930
Likes: 280
From: Portugal
Re: Prototype C4 A.I.R. Pump completed :) (smacko)
Nice innovation. I had thought of doing something like that on my '81 but never had the gazungas to go for it. Glad to see you worked it out.
:cheers:
:cheers:
Thread Starter
Burning Brakes
Joined: Jul 2003
Posts: 922
Likes: 1
From: Brisbane Queensland, Australia
Re: Prototype C4 A.I.R. Pump completed :) (DiabolicalDave)
Thanks mate!
It's on the car AND WORKING FINE!!!
Had another thought too; another 'advantage' for U.S.A. guys, is that it would pass a visual inspection if you kept all the hoses etc in place.
We don't (I think) have (Well, I've never encountered it anyway) that sort of visual inspections here in Australia, but even if we did; Vettes are so rare that I doubt there'd be many cops here that would know what they were looking for! (Even tho I did buy this one off a cop!); NICE FELLA he is too, if you're reading this mate! :D
It's on the car AND WORKING FINE!!!
Had another thought too; another 'advantage' for U.S.A. guys, is that it would pass a visual inspection if you kept all the hoses etc in place.
We don't (I think) have (Well, I've never encountered it anyway) that sort of visual inspections here in Australia, but even if we did; Vettes are so rare that I doubt there'd be many cops here that would know what they were looking for! (Even tho I did buy this one off a cop!); NICE FELLA he is too, if you're reading this mate! :D
Racer
Joined: Apr 2003
Posts: 280
Likes: 0
From: edmonton ab
Re: Prototype C4 A.I.R. Pump completed :) (smacko)
Because most of the home-made jobs I've seen look a bit 'dodgy';
and to get one from a US based corvette supplier landed here in OZ would cost at least 4 times what this operation cost me.
and to get one from a US based corvette supplier landed here in OZ would cost at least 4 times what this operation cost me.
really? must not have looked in the rite place?
what did this engineer cost ?
what time did you spend with conversion?
how much were the parts?
over all did you really save any money?
was it worth all your effort?
some of these things may not concern everyone..however good luck ..:D
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Thread Starter
Burning Brakes
Joined: Jul 2003
Posts: 922
Likes: 1
From: Brisbane Queensland, Australia
Re: Prototype C4 A.I.R. Pump completed :) (vettek50)
Vettek50; there IS no right place to find them here in Australia - no one sells them!
OK answers to your questions;
what did this engineer cost ? $120 all up incl parts
what time did you spend with conversion? The time taken to take the unit to engineers then pick it up. Don't know how long they took, being a prototype and all, but aside from thinking time, I guess just the time their experianced hands took to machine the bits.
how much were the parts? Not separately listed; most would have been labour aside from 2 bearing and some alloy etc, so I'm guessing $30-$40 max
over all did you really save any money?
Yes; was cheaper than a rebuild which couldn't have been done as is on mine due to bearing surfaces wear; would have had to be re-surfaced etc
was it worth all your effort? YES; The most effort was deciding to go ahead and not have an air pump anymore.
I'm pleased with the outcome.
:rant:
OK answers to your questions;
what did this engineer cost ? $120 all up incl parts
what time did you spend with conversion? The time taken to take the unit to engineers then pick it up. Don't know how long they took, being a prototype and all, but aside from thinking time, I guess just the time their experianced hands took to machine the bits.
how much were the parts? Not separately listed; most would have been labour aside from 2 bearing and some alloy etc, so I'm guessing $30-$40 max
over all did you really save any money?
Yes; was cheaper than a rebuild which couldn't have been done as is on mine due to bearing surfaces wear; would have had to be re-surfaced etc
was it worth all your effort? YES; The most effort was deciding to go ahead and not have an air pump anymore.
I'm pleased with the outcome.
:rant:
Racer
Joined: Apr 2003
Posts: 280
Likes: 0
From: edmonton ab
Re: Prototype C4 A.I.R. Pump completed :) (smacko)
Vettek50; there IS no right place to find them here in Australia - no one sells them!
.
I'm pleased with the outcome.
:rant:
.
I'm pleased with the outcome.
:rant:
Race Director
Joined: Aug 2000
Posts: 14,130
Likes: 7
Cruise-In II Veteran
Re: Prototype C4 A.I.R. Pump completed :) (vettek50)
While I have the eliminator pulley,a few years back i gutted my smog pump.
I took it apart and knocked the fiberboard blades and crap out of it.It then freewheeled internally.As long as the bearings are good,it will last a long time.What led me to gut the pump was that it was making a loud noise inside.When I took the cover off it,one of the fiberboard blades or whatever that stuff is,had broken up in there.So I just finished it off.I just used a hammer and chisel/screwdriver and smacked it all out piece by piece.
:)
I took it apart and knocked the fiberboard blades and crap out of it.It then freewheeled internally.As long as the bearings are good,it will last a long time.What led me to gut the pump was that it was making a loud noise inside.When I took the cover off it,one of the fiberboard blades or whatever that stuff is,had broken up in there.So I just finished it off.I just used a hammer and chisel/screwdriver and smacked it all out piece by piece.
:)
Thread Starter
Burning Brakes
Joined: Jul 2003
Posts: 922
Likes: 1
From: Brisbane Queensland, Australia
Re: Prototype C4 A.I.R. Pump completed :) (vettek50)
Gidday mate!
I'll try and email you 2 pics of the 'pump'; these idiots running my ISP STILL almost a week later haven't fixed their FTP site!!
For the rest of you guys; be patient; I'll upload pics as SOON as they get their act together.
Thanks!
:rant:
I'll try and email you 2 pics of the 'pump'; these idiots running my ISP STILL almost a week later haven't fixed their FTP site!!
For the rest of you guys; be patient; I'll upload pics as SOON as they get their act together.
Thanks!
:rant:
Racer
Joined: Apr 2003
Posts: 280
Likes: 0
From: edmonton ab
Re: Photos of my Prototype C4 A.I.R. Pump completed :) (smacko)
nice to see photohost is working for you now...good pics too..NOW this is what i would call a well thought out idea...power to those DIY's projects!!! :thumbs: ps. changed your quote to pictures
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[Modified by vettek50, 2:13 AM 8/28/2003]
[Modified by vettek50, 2:15 AM 8/28/2003]
[/quote][Modified by vettek50, 2:13 AM 8/28/2003]
[Modified by vettek50, 2:15 AM 8/28/2003]
