22RE- York on board air COMPLETE

[Matt16]

I fitted a York OBA system recently. Here it is: Compressor: Full-sized York off a Volvo (I think, I bought it from a guy who had it in the garage) Bracket: Adapted from a 22RE A/C bracket, you need a sort of spacer as well Air lines: 3/8" Air tank: Air brake tank off a Ford dump truck (note: not a dumpy Ford truck) Valves switches etc: One-way into the tank, 150psi pressure release valve, drain valve, 90psi on/120psi off Description: York is belt driven off the engine in place of the stock AC pump (you can't install the York like I have with AC) pressured air goes down the air line, through the one way valve pump has a magnetic clutch that is activated by a relay relay is only thrown when: a) the day-time runnning lights are ON (always on when engine is running (Canadian spec) b) the switch in the engine bay next to the quick disconnect is ON c) pressure is below 90psi. air tank link to quick disconnect zip-tied near battery fills up a 31" tire from ~5 to 35psi in ~30 seconds at 2500rpm cost estimate York compressor...................<$50 22RE A/C bracket....................$30 25' air hose, cut inot pieces......$15 NPT fittings............................$50 air brake tank........................$50 air filter, pressure valves.........$40 electrical bits.........................$50 TOTAL................................~$300 (based on what I actually spent) Knowing your compressor pumps out 10X more air and costs less than half of the guys with a Viair....Priceless more info: http://www.yotatech.com/f116/york-ai...r-22re-152143/ Here's the measurements on the bracket. Input & output, blow-off valve (150 psi), and on/off pressure switch (80psi-ON/ 120 OFF) I secured the bracket to the body of the truck.

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[littlecommando]

looks good, i have been thinking about doing this too
do you still have A/C even with the air compressor?

[Matt16]

Originally Posted by littlecommando

looks good, i have been thinking about doing this too
do you still have A/C even with the air compressor?

No, I never had AC, just bought the bracket. The York sits where the stock AC would. You would have come up with a complex bracket to make a York work with AC, but I'm sure someone has done it, try searching Pirate BB.

[scuba]

You bought a guy ???

lol

lookin good matt, congrats

[littlecommando]

Originally Posted by Matt16

No, I never had AC, just bought the bracket. The York sits where the stock AC would. You would have come up with a complex bracket to make a York work with AC, but I'm sure someone has done it, try searching Pirate BB.

is this just a trail rig or do you just just suffer through the heat every day?

[Matt16]

Originally Posted by scuba

You bought a guy ???

lol

lookin good matt, congrats

Someone's got to grease my muffler bearings, and that someone ain't gonna be me.

[Matt16]

Originally Posted by littlecommando

is this just a trail rig or do you just just suffer through the heat every day?

It's my daily driver. With the windows down, its never too hot in the truck. I'm also in Canada, so heats only an issue from June to August, and even then the hottest I ever remember is 35*C (95*F)

[Alex 400]

did how do you hold it at 2500 rpm? did you make any kind of throttle holder mechanism or anything?


something like this...

http://www.madisonpowersystems.com/1...s/throttle.htm

[littlecommando]

Originally Posted by Matt16

It's my daily driver. With the windows down, its never too hot in the truck. I'm also in Canada, so heats only an issue from June to August, and even then the hottest I ever remember is 35*C (95*F)

that makes since, why bother fixing it for 2 months a year, right?

[Matt16]

Originally Posted by littlecommando

that makes since, why bother fixing it for 2 months a year, right?

I never had AC to start with. I went to a wrecker, bought the AC bracket, used a tap to clean out the thread on the block, and then built a spacer bracket to fit on the AC bracket.

[littlecommando]

Originally Posted by Matt16

I never had AC to start with. I went to a wrecker, bought the AC bracket, used a tap to clean out the thread on the block, and then built a spacer bracket to fit on the AC bracket.

I didnt even know that no A/C was even an option
i guss thats a canadan thing?

[Alex 400]

Originally Posted by littlecommando

I didnt even know that no A/C was even an option
i guss thats a canadan thing?

well the sr5 like you and i have, were the top of line (next to the limited) and they came with A/C I don't believe the base models came with it.

[Jay351]

A/C was always an option...

Looks good Matt, OBA is awsume, hopfally I can rig something up in my truck in the future..

[Snotrocket]

Originally Posted by Alex 400

well the sr5 like you and i have, were the top of line (next to the limited) and they came with A/C I don't believe the base models came with it.

My truck never had it either. There are a lot of base model Toyota's around here that don't have it. I can only think of one day all summer I wish I had it. Heat on the other hand........




What is the compressor out of exactly? I've got 3 old Volvo's kicking around.....

[JasonWin]

My 1985 SR5 doesn't have A/C, and I'm pretty sure it never did, nothing on the dash to sudjest it did.

[Matt16]

Originally Posted by Alex 400

well the sr5 like you and i have, were the top of line (next to the limited) and they came with A/C I don't believe the base models came with it.

Oddly, I have an SR5, but no AC. I doubt I'd use it that much though, so I don't miss it.

[Matt16]

Originally Posted by Jay351

A/C was always an option...

Looks good Matt, OBA is awsume, hopfally I can rig something up in my truck in the future..

Yeah, sounds, good. I just need to find a free day. I really want to check out the West Harrison.

[Matt16]

Oh yeah, I thought this York would cause the revs to fall low at idle, but that doesn't seem to be the case. That said a hand throttle to keep the idle at 2500 while filling up the tires would be nice, but a rock propped against the gas pedal works for now.

EDIT:
I just tested out air tools. The air drill needs the throttle to be bumped up a little. The impact does fine at idle.

[locked stock 84]

Ok, so a few questions...
How do you have it wired?
Where did you get the pressure switches?
Did you run a master switch in the dash?
Did you run a press guage to the dash?
Did you filter the inlet air to the compressor?
Is that tensioner stock for A/C?
What size belt did you use?
Thanks for the write up!

[Matt16]

Originally Posted by locked stock 84

Ok, so a few questions...
How do you have it wired?
Where did you get the pressure switches?
Did you run a master switch in the dash?
Did you run a press guage to the dash?
Did you filter the inlet air to the compressor?
Is that tensioner stock for A/C?
What size belt did you use?
Thanks for the write up!

The wiring goes as follows:
A fused wire leaves the battery and goes through a relay and to the wire coming out of the compressor. To throw the relay current is drawn from the daytime running light wire (in cab, under ash tray), that way there is no way that the magnetic clutch on the compressor can draw power when the engine is not running. The it travels to a switch I mounted in the engine bay, then back to the pressure switch (80psi on, 120psi off), then to ground. To throw the relay, the pressure in the tank must me <80psi, the engine must be running and the switch must be thrown.

I got the pressure switch from a big tool store (KMS tools, in Burnaby, BC), but they should be available at most tool stores.

No master switch in the dash. I already have lots of aux. light switches and its getting confusing. Besides, I always check the engine (oil, coolant, rattles etc any time after off pavement travel. Can't imagine a situation where I'd need the hood closed (ie: driving) but still need the compressor. If I had air lockers, I'd tap into the reservoir tank.

Yes, I used a filter. Used a breather meant for a large V8 or something, it was intended for used as a crank case breather I think. It was $20, and the fit was perfect. I was going to tap into the airbox, but the brass fittings were more expensive than the breather. I think I will relocate the intake higher, but the compressor is unlikely ever to be running during a water crossing, unless I accidentally left it on and the water cooled the air tank, decreasing the pressure in the tank and throwing the circuit- that would be bad, but unlikely.



Yes, the AC bracket has a tensionner. The only thing I needed to make, was the adapter plate. I got scrap metal from fabrication shops, and welded it myself at my old highschool. I've never welded before, and MIG is easy.

3/8" belt? I think. Same width as the other belts. Fits the cranks and the York just fine. The belt looks brand new.

[Matt16]

The compressor actually saved my butt today, while I was exploring an old copper mine of in the mountain. I was alone and I left my shovel at home as I the purpose of the trip was to go salmon fishing earlier in the day. The river level came up with me on the bank opposite the truck, so I made a hasty retreat just in time to make it across the river. Then I went about finding something else to do. I went to an old copper mine and drove up the access road.

At the end of the road, I drove into what I though was some dirt, and it was a field of the stickiest mud I've ever seen. Usually West Coast mud is watery soil and sand, this fine silt mud and it was like peanut butter. You couldn't walk on it, as your feet would get stuck. I had one tire 1' deep in that crap, another two in a couple inches of the stuff and on stuff you could actually walk on. I deflated my tires a bit then went off looking for traction. Found an old empty oil drum, smashed it flat with boulders, then jammed it under one of the back tires. Was almost ready to haul out the HiLift jack, but I was able to rock it back and forth until the tire caught on the oil drum and hauled me out. Wouldn't have caught at street pressure. The lower tire pressure allows the tire tread to flex a bit and grab better/ clear the mud in this case.

[locked stock 84]

Thank you for the fast reply! Do you know of any changes required for 22R?

[Matt16]

I don't know. I wouldn't be surprised if the A/C systems were teh same.

[Matt16]

Here's a good writeup on adding on board air to a V6 4runner by using the A/C pump.

http://www.yotatech.com/f116/oba-my-...s-pics-155109/

[Matt16]

Update: I've been dropping the pressure in the tires down to around 20psi on backroad- rides like a Cadillac. It takes me 5 min to air down and 5 min to air back up.

Very happy about this modification- the only better value mod so far has been the rear locker. About the only way to improve up this would be to have a central tire inflation system like on the Hummer H1. That wouldn't likely be an easy mod though lol...