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Diesel air con compressor as air pump

Tech Talk for Nissan owners.

Moderators: toaddog, V8Patrol

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Posts: 365
Joined: Mon Aug 18, 2003 1:03 am
Location: Perth

Diesel air con compressor as air pump

Post by Shark »

Can this be done and is it difficult, annoyed at the time it takes to pump up tyres.

A wrecker said today that he would sell me the compressor and the mounting brackets for $130.
Does that sound okay, difficulties in installing??

Marc
Posts: 45681
Joined: Wed Nov 27, 2002 10:13 am

Re: Diesel air con compressor as air pump

Post by bogged »

Shark wrote:Can this be done and is it difficult, annoyed at the time it takes to pump up tyres.

A wrecker said today that he would sell me the compressor and the mounting brackets for $130.
Does that sound okay, difficulties in installing??

Marc


I got a compressor for $40 from pick-a-part. mounting brackets are a Cookie.

but yes can be done piss easy on a diesel, better with a 2inch body lift though...
Posts: 365
Joined: Mon Aug 18, 2003 1:03 am
Location: Perth

Post by Shark »

Well i have a 2" body lift. Only thing was i got around six different prices and 130 was the cheapest, average price was 220.


MArc
Posts: 365
Joined: Mon Aug 18, 2003 1:03 am
Location: Perth

Post by Shark »

Well i just spent the last hour reading heaps of tech about converting aircon compressors to tyre pumps and i must say im even more confused :roll:

Simple question
i have a standard sd33 with 2" lift, if i go and buy a compressor and mounting brackets off a wrecker apart from installing it what else has to be done????

Grease nipple?? Special way to mount it???

Cheers for the help
Marc
Posts: 365
Joined: Mon Aug 18, 2003 1:03 am
Location: Perth

Post by Shark »

After even more reading what compressor to go for. One out of a sd33 diesel?? A york?? Or a sanden??? Which will be easier to install??

MArc
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Joined: Sun Nov 24, 2002 8:57 pm
Location: Melbourne

Post by bazzle »

If your 4bee doesnt already have a Aircon then easiest way is to fit $130 with OE bracket.

Put a grease nipple in blanking plug on side and pump in moly from time to time.
Use orig hoses. One to an old lawn mower filter etc for inlet.
Outlet hose is needed to take the heat for 1st couple of feet, then join to good quality neoprene air line.
A second hand truck tank makes a good air tank under chassis, behind winch etc.
Take outlet from top half of tank to reduce contamination.
Wire clutch thru a sw on dash. Only run at fast idle No more.
Put a blow off valve on tank ~140psi normally from comp shop.
Use fittings of your choice.
Put a one way valve at inlet to tank away from hot part of hose.
Also from aircomp or hose shop (yellow pages/Enzed etc)

Bazzle
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Joined: Mon Aug 18, 2003 1:03 am
Location: Perth

Post by Shark »

Okay thanks for all that info bazzle, im gonna go buy one tomorrow have a long hard look at it and then decide if i need to ask any more questions.

CHEERS :D

Marc
Posts: 365
Joined: Mon Aug 18, 2003 1:03 am
Location: Perth

Post by Shark »

Where is the blanking plug???
Only run when your idle is over 1000rpm???
Sorry slightly confused

Marc
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Joined: Thu Jan 22, 2004 6:19 pm
Location: eastern melbourne

Post by TwistedMQ »

make sure you take some pics, am going to be doing this mod to mine soon and would like to see how you do it.
Posts: 365
Joined: Mon Aug 18, 2003 1:03 am
Location: Perth

Post by Shark »

Well after buying the compressor i decided at the wreckers not too take the mounting brackets but decided it would be easier to get the brackets so i went back only to discover some moron had welded the brackets on!!

So after alot of thought the easiest spot to mount the compressor would be over the steering box. So have made an adaptor plate and is all mounted up, will try and find a belt to fit tomorrow and will let you all know how it goes.

QUESTION
There is one wire coming off the unit i assume you wire this through a switch and it basically operates the clutch which makes the compressor run??


Cheers
MArc
Posts: 365
Joined: Mon Aug 18, 2003 1:03 am
Location: Perth

Post by Shark »

I need to know where to put a grease nipple, where is the blanking plug. What kind of lubrication does my specific model need.


Marc
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Joined: Fri Feb 20, 2004 12:04 am
Location: Melbourne

Post by Woop »

The grease nipple need to be drilled and tapped into the oil filler top-up plug in the body of the compressor. I use high temp wheel bearing grease which seems to work ok although a bit gets blown out the exhaust of the compressor after a while.

Wire the cable that goes to the compressor coil to a relay--feed +12v from battery to relay. Wire a switch on dash to feed the relay from an IGN source so you dont accidently leave it on. When you get your tank, wire the switch via a pressure switch to the relay.

NickW
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Joined: Mon Aug 18, 2003 1:03 am
Location: Perth

Post by Shark »

I heard that just pouring a small ammount of mineral oil down the intake of the compressor is enough to keep it lubricated. Is that true?


Marc
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