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Forum: Diesel Discussion

04-23-2010, 11:30 AM

Replies: 42

AC evacuation question

Views: 3,398

Posted By leathermang

OK, guys , it is time for you to tell us that do...

OK, guys , it is time for you to tell us that do not have a micron gauge which type/s you recommend..... what are the most important features to look for in figuring out what to buy?

Forum: Diesel Discussion

04-22-2010, 01:40 PM

Replies: 42

AC evacuation question

Views: 3,398

Posted By leathermang

It is not just the depth of the vacuum that is...

It is not just the depth of the vacuum that is important...
the moisture is in the oil in the system...and that oil is spread around in high and low spots... it does not boil off evenly... one...

Forum: Diesel Discussion

04-22-2010, 08:53 AM

Replies: 42

AC evacuation question

Views: 3,398

Posted By leathermang

I agree totally with what Larry just said.

I agree totally with what Larry just said.

Forum: Diesel Discussion

04-21-2010, 10:10 PM

Replies: 42

AC evacuation question

Views: 3,398

Posted By leathermang

I have a brand new HF two stage pump ready to be...

I have a brand new HF two stage pump ready to be used...
but I have seen people suggesting using the old refrigerator compressors for decades... which I have read have serious conceptual problems...

Forum: Diesel Discussion

04-21-2010, 09:48 PM

Replies: 42

AC evacuation question

Views: 3,398

Posted By leathermang

AH HA !! I was right ! you do know the physics...

AH HA !! I was right ! you do know the physics of the situation..

Now, these people who install a bung hole...

Where should that be placed ?

Will that allow the oil to be changed out...

Forum: Diesel Discussion

04-21-2010, 08:02 PM

Replies: 42

AC evacuation question

Views: 3,398

Posted By leathermang

I do not agree with using an old refrigerant...

I do not agree with using an old refrigerant pump...but you seem to know enough about the physics of the system to answer these "questions" :

Why was there not a ' bung hole ' there in the first...

Forum: Diesel Discussion

04-21-2010, 01:44 PM

Replies: 42

AC evacuation question

Views: 3,398

Posted By leathermang

I am not at all arguing against the nicety of...

I am not at all arguing against the nicety of having any tools one can afford to have... the more tools the better...
I do not have one...so I have to rely on whether it will hold for many hours...

Forum: Diesel Discussion

04-20-2010, 10:06 AM

Replies: 42

AC evacuation question

Views: 3,398

Posted By leathermang

If people will get the type vacuum which can be...

If people will get the type vacuum which can be left on overnight... and leave it on that long...instead of trying to rush the process... that is a pretty safe method without having that type...

Forum: Diesel Discussion

04-19-2010, 11:07 PM

Replies: 42

AC evacuation question

Views: 3,398

Posted By leathermang

WOW, That seems like a pretty pessimistic view of...

WOW, That seems like a pretty pessimistic view of the situation... I hope it is not correct....but it certainly could be given the parameters of the kind of thinking which would cause people to try...

Forum: Diesel Discussion

04-19-2010, 07:50 PM

Replies: 42

AC evacuation question

Views: 3,398

Posted By leathermang

An old refrigerator compressor is a closed...

An old refrigerator compressor is a closed system...
How are you people exiting the water vapor you are pulling out of the AC system ?
These vacuums you can buy at HF for instance..... have a place...

Forum: Diesel Discussion

04-19-2010, 11:44 AM

Replies: 42

AC evacuation question

Views: 3,398

Posted By leathermang

vstech has it all down pat... all the correct ...

vstech has it all down pat... all the correct physics and philosophy are there.

except for one concept. There is no way to check for leaks in the evaporator ( which is where one was in my 81...

Forum: Diesel Discussion

04-18-2010, 09:21 PM

Replies: 42

AC evacuation question

Views: 3,398

Posted By leathermang

I also got the HF one... the only suggestion is...

I also got the HF one... the only suggestion is to be sure to get a TWO STAGE pump...
while the number of cubic feet per minute will make a difference in the time needed to do a good job... it can...

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