| [ Total Views: 1533 | Total Replies: 18 | Thread Id: 9853 ] |
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 duncombemu
A.k.a.: Mark Atkins
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 posted on August 29th, 2003 at 08:43 PM |
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Wanted info on VW motor compresser
I have a spare 1200 type 1 motor. Does anyone have plans or directions, on how to transform/build one of these engines into a twin cylinder air
compressor?
Any ideas, anyone?
Regards,
Mark
:thumb
Don't ever let anyone tell you, "It can't be done."
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 Peter Leonard
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| posted on September 1st, 2003 at 05:20 AM |
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http://www.vwfarm.com/aircooled/v-air.jpg
like that one?
http://www.offroad-imports.com/mogs.php?style=acc#
couple of compressors here too, but no plans. some dude won a prize for selling vw powered air compressors on ebay. apparently they're so good
and reliable that everyone should dump their industrial 10,000 dollar ones and get stuck into a vw 
let sleeping dubs lie
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modulus
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| posted on September 1st, 2003 at 12:23 PM |
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In the thread
http://www.aussieveedubbers.com/forum/viewthread.php?tid=9842
Andy mentioned special heads used by Qld rail.
HTH
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KruizinKombi
A.k.a.: Col
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| posted on September 1st, 2003 at 02:38 PM |
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Mark, the usual design is to have two cylinders (#3 + #4 I think) operating as a compressor, driven by the other two cylinders.
The compressor side has ball check valves screwed into the spark plug holes, with the exhaust pushrods and lifters removed.
I was chasing one of these a few months ago, but somebody else decided that they wanted it more and bought it out from under my nose. I know where it
is though, so I'll try to get some photos of it.
Kruizin Kol
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Andy
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| posted on September 1st, 2003 at 03:03 PM |
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Hey Col, if that's all they are, might have to see what we have here at work to use. Might be able to supply checks that will screw straight in
with an outlet to connect to what ever you need (tank etc).
If a few people are interested I'll look into it.
Col if you have any more details please let me know. At a guess a check + adaptor should be ~$30ea (two per motor).
:thumb
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KruizinKombi
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| posted on September 1st, 2003 at 09:20 PM |
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I guess it would also require a few fittings to connect the check valves to the tank, maybe a water trap and a gauge, as well as a safety blow-off
valve (because the motor won't stop/start like an electric one will).
The 'factory' (loose term) ones also had a governor, but I guess it could be done without one.
Richard, if you have that sorta stuff at work, I'd be interested in having a chat about it. I still have two spare motors in my shed. 
Kruizin Kol
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duncombemu
A.k.a.: Mark Atkins
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| posted on September 1st, 2003 at 10:33 PM |
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I found this on the web. It's got a few pictures and an explaination. It looks a little more complicated than at first thought.
If we put our heads together and help each other with ideas, then we might come up with an out come, suitable for everyone.
http://mywebpage.netscape.com/alphahr/volksair.htm
Regards,
Mark
Don't ever let anyone tell you, "It can't be done."
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Andy
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| posted on September 2nd, 2003 at 03:07 PM |
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Cols idea sounds doable.
Would be nice if some one had a pic, or some details of the check used. Would also make a great spare motor. Just whack the push rod and rocker back
in a spark plug and your in business.
The compressor side will also need to breath fresh air, not through the carb!!
I will investigate!! 
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duncombemu
A.k.a.: Mark Atkins
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| posted on September 2nd, 2003 at 11:09 PM |
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Andy, if you need anything from me, then let me know if I can make you job a little easier. I'm serious with this. Let me know if I can help.
Regards,
Mark:thumb
Don't ever let anyone tell you, "It can't be done."
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Andy
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| posted on September 3rd, 2003 at 12:16 PM |
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Nobody has any info on other variations.
Or even a pic of an old one?
duncombemu
I hope your patient. It won't be done in a hurry, but I will get there
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no slow 63
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| posted on September 3rd, 2003 at 04:11 PM |
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If someone is going to make / supply the parts , i'd be interested in getting a set.
I'm not sure, but I think that the VW compressors have a special cam aswell to make the air pumping head run 2 stroke. ie. compression on each
upward stroke.
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Andy
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| posted on September 3rd, 2003 at 04:27 PM |
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True, but it will still work as Col described without any major mods.
Getting a cam made would be expensive I'd assume?
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Grey 57
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| posted on September 3rd, 2003 at 09:04 PM |
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These was a company in West Australia called Holman Industries that built trailer mounted compressors with VW motors.
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slow n low
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| posted on September 4th, 2003 at 10:15 AM |
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vw compressor
Hi all,
The Tasmanian government railways also had some of these compressors. they did not have a tank, but could supply something in the range of 50-60 cfm.
I read somewhere "can't remember where" that they had a special grind cam for the compressor side of the engine.
Cheers Damian
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silver
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| posted on September 7th, 2003 at 08:34 PM |
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give Steven Muller a call he has one and i am sure he can fill in the missing details about how they are set up!
Keeping it real !
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Andy
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| posted on September 15th, 2003 at 08:00 AM |
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Hey guys, was wondering over the week end. If you just leave out the exhaust push rods to use a stock motor as an air compressor, wouldn’t you loose
oil pressure? Oil is sent to the rockers via the cam and push rods isn’t it? (THANKS 11CAB).
Might need to add the check valves feeding the tank to the exhaust ports. Can get away with one check that way also.
Andy
:thumb
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KruizinKombi
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| posted on September 15th, 2003 at 03:13 PM |
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What does it matter if the exhaust rockers don't get oiled if they have no pushrod to move them anyway?
Kruizin Kol
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Andy
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| posted on September 15th, 2003 at 03:23 PM |
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Col, what I meant is how is oil feed into the push rod? By taking it out, you leave hole uncovered so you can no loger build up pressure in the oil
galleries??
:alien
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KruizinKombi
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| posted on September 15th, 2003 at 08:38 PM |
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hmmm, dunno, I'd have to think about it.... maybe chewing gum?
Kruizin Kol
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Andy
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| posted on September 16th, 2003 at 08:53 AM |
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Bugger, sounds like I'll have to rummage through the shed and have a look for myself. Don't like getting dirty hands you know
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KruizinKombi
A.k.a.: Col
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| posted on September 16th, 2003 at 07:44 PM |
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Me neither, otherwise I'd probably be more help to you!!
Kruizin Kol
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