3.4 Swaps The 3.4 V6 Toyota engine

removing old AC system

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Old 06-28-2011, 08:47 PM
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removing old AC system

How did you guys handled the old AC system? Did you undo the compressor from the engine and re-attach it to the 3.4 or let the gas out and remove the AC lines?
Old 06-28-2011, 09:56 PM
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I undid mine and used the 3.4 compressor. In hindsight I wish I would have kept the 3.0 and broken the seal.
Old 06-29-2011, 11:54 AM
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Originally Posted by anthony1
How did you guys handled the old AC system? Did you undo the compressor from the engine and re-attach it to the 3.4 or let the gas out and remove the AC lines?
You mean recover the refrigerant.
Old 06-29-2011, 12:22 PM
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Well, to keep the greenies off my back, I was going seperate the 3.0 compressor from the engine and use it with the 3.4.
Has anyone here done that?
Do I need to use the bracket from the 3.0? or use the one on 3.4?
Old 06-29-2011, 12:34 PM
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I ended up using the compressor from the 3.4 and the lines and plate from the 3.0. The reason why I didn't use the 3.0 is because of the pulley. If you can change out the pulley (requires pulling off the clutch), then you can use the 3.0 compressor.
Old 06-29-2011, 01:06 PM
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pull the 3.0 compressor and use it on the 3.4, you need to use the 3.4 mount. Pulling the pulley off was easy. Just have to follow the fsm. it comes right up. You use a longer bolt per fsm and screw it in. I used an impact slowly. it pulls right up. This way you keep your refrigerent. If you have r12 you really don't want to lose it
Old 06-29-2011, 05:25 PM
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3vze ac compressor is a v-belt.
5vze ac compressor is a 4 groove serp belt.
best to use 3.4 compressor
Old 06-30-2011, 10:12 AM
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NO, 3.0 compressor and 3.4 compressor are the same. the plates for the hoses are different, and the pulley's are different. That is all. Pull the pulley off the 3.4 compressor, and use it on the 3.0. Keep the system intact. Cheaper that way.
Old 06-30-2011, 08:04 PM
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Originally Posted by hamish_18
NO, 3.0 compressor and 3.4 compressor are the same. the plates for the hoses are different, and the pulley's are different. That is all. Pull the pulley off the 3.4 compressor, and use it on the 3.0. Keep the system intact. Cheaper that way.
x2 thats what i did been working ever since.
Old 06-30-2011, 11:01 PM
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I've decided to keep the 3.0 compressor. I'll change out the pulley and the tensioned pulley.
Do you still need the tension adjustment pulley?
Old 07-01-2011, 08:02 AM
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yes you will need to use the 3.4 mount. So just keep the serpentine tensioner on it. Just swap clutch and pulley onto the 3.0 and mount it to the 3.4 mount. you will be good to go.
Old 07-01-2011, 02:43 PM
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Thanks. I'll take some pics ...
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