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Old 05-21-2007, 09:25 AM   #1
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Default Filling new AC sanden TR70 ac compressor with ester oil

I am finishing up my AC install with the use of the HCP AC bracket fitting the stock (remanned) sanden TR70 compressor. I have the service manual which calls for 4 ounces of compressor oil (ester oil since converting to R-134), but I don't know where to add the oil.

The compressor body doesn't appear to have a fill plug. It has two holes on the top where you hook up the suction and discharge plumbing, and then a relief valve one the side of the housing.

Does anybody know where you dump the oil in before recharging?
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Old 05-21-2007, 03:08 PM   #2
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Default Re: Filling new AC sanden TR70 ac compressor with ester oil (stegs)

Remove one of the hose lines and just pour it in.

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Old 05-21-2007, 06:01 PM   #3
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Default Re: Filling new AC sanden TR70 ac compressor with ester oil (Wes V)

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Remove one of the hose lines and just pour it in.

Wes
Click the image to open in full size. it just goes in and circulates in the system. it doesnt go in any particular place. why switch to r134 when r12 is still available and gets it much colder than r134 which sucks in my opinion(well on r12 converted units)
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Old 06-29-2011, 08:27 PM   #4
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Default Re: Filling new AC sanden TR70 ac compressor with ester oil

the compressor has two holes, make sure you add it on the biggest one
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Old 06-30-2011, 05:47 AM   #5
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Default Re: Filling new AC sanden TR70 ac compressor with ester oil

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Originally Posted by 93ludefreak View Post
the compressor has two holes, make sure you add it on the biggest one
You just replied to a post that is just over 4 years old
Click the image to open in full size.
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Old 06-30-2011, 11:55 PM   #6
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Default Re: Filling new AC sanden TR70 ac compressor with ester oil

lol. holy shi*. thats funny bro. new to this thing.
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Old 07-01-2011, 08:50 AM   #7
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Default Re: Filling new AC sanden TR70 ac compressor with ester oil

Actually, it was helpful for us. My son and I are about to put a rebuilt Sanden compressor in his project car, and we did not know this.

Just out of curiosity, why should you put it on the larger hole?
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Old 07-01-2011, 02:06 PM   #8
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Default Re: Filling new AC sanden TR70 ac compressor with ester oil

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Actually, it was helpful for us. My son and I are about to put a rebuilt Sanden compressor in his project car, and we did not know this.

Just out of curiosity, why should you put it on the larger hole?
When turning the compressor by hand, one port creates suction.
While filling with oil you rotate by hand to distribute the oil.
Putting it in the other hole will likely end up shooting some oil out as you rotate.
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Old 07-01-2011, 07:44 PM   #9
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Default Re: Filling new AC sanden TR70 ac compressor with ester oil

Makes sense. Thanks for the explanation.
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