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F-150 In-Line Filter question

jgcox6 on Thu September 13, 2007 8:52 PM User is offline

Year: 1993
Make: ford
Model: f-150
Engine Size: 4.9l
Refrigerant Type: 134 convert
Country of Origin: United States

I am in the process of replacing my compressor (black death again!) and have a few questions:

After I flush the system, I am wanting to put an in-line filter to try to protect the new compressor...will I have to have a special hose to connect it to the existing system?

When putting leak detector dye into the system, can each can have the leak detector or can you use too much?

I bought the N-log stuff to put on the threads and new o'rings.. how much do you use?

I am concerned about my new condensor that was recently put in...it is the serpentine type and have heard they are a boogar to flush... could a new condensor have caused black death?

What color orifice tube should I use?..couldn't tell from the old one..it was so black and actually "crushed" when I pulled it out!

And for what it is worth...this forum is the best one I have ever seen....great job and thanks in advance..

The Power of Dreams on Thu September 13, 2007 9:19 PM User is offline

I believe your orifice tube is blue.

Motorcraft P/N YG345.

Chick on Thu September 13, 2007 9:25 PM User is offlineView users profile

If your O tube was that bad, consider changing the condenser again..They don't flush well..Should be a "picilo" design BTW unless it was an aftermarket one from the last time??

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

jgcox6 on Fri September 14, 2007 3:00 PM User is offline

Chick,, please advise about the other questions...I don't want to screw this job up..cost too much money...please

iceman2555 on Fri September 14, 2007 5:10 PM User is offlineView users profile

"Black Death....again"....this is a bit confusing...esp since it is implied that this may be a second replacement for the original compressor.
The FS10 compressor will not suffer the same 'Black Death' as the first generation FX15. The FX15 suffered from a complete component failure (swash plate) that resulted in the black/dark gray substance within the system.
If there are instances of this new generation 'Black Death' in this vehicle....it is probably a lubrication problem, either lube that is failing or residual flush chemicals that are destroying the lubricant. We simply do not see the first generation 'Black Death' in later model vehicles.
If it is indeed a case of 'Black Death'...in most instances the entire system may need to be replaced. The evap's do seem to flush clean...however, examples of this contamination in other parts has displayed a strong tendency not to flush clean. This is stated with the assumption that modern flush chemicals are being utilized.
The system does exhibit characteristic of being 'self cleaning' and during operation the system does indeed tend to dislodge this contaminant from the system and re contaminate the lubricant...and the problem re occurs...over and over. TXV system exhibit the greatest difficulty in proper cleaning.....many require the removal of the dash or dash components to access the evap and removal of the TXV to facilitate complete flush.
Please post the type of flush used...if any....and other steps taken to insure a clean system. This system will not survive another compressor replacement if any of this material remains.
This problem can and will occur no matter what type compressor is being installed...new...re man'd.....fixed displacement...scroll...vanes...etc.

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The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.
Thomas Jefferson



Edited: Fri September 14, 2007 at 5:12 PM by iceman2555

Chick on Fri September 14, 2007 5:26 PM User is offlineView users profile

The origianl compressor was an FX15 in 93, so I would follow Icemans advice.. If it's not toally clean, it will keep re-contaminating the system. Or the residual flush will destroy the new oil leading you back in circles..

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

jgcox6 on Fri September 14, 2007 7:05 PM User is offline

TVX...is that what my 93 F-150 has? If so I haven't flushed it yet...so based on what I have read about flushing..is there anyway that the "new condensor could be flushed well enough? I was going to order a gallon of the flush guys sell..or can I just use the "fast drying" mineral spirits Chick uses?' Is the TVX in the evaporator itself?

Chick on Fri September 14, 2007 7:21 PM User is offlineView users profile

You have an O tube system, not a TVX. I would not use the condenser over since the system failed and spread junk thru the system. Since the O tube was clogged, you can bet the condenser is as well. Change the accumulator, O tube and compressor, flush everything else. If your lines have filters or mufflers, change them too. Do it right and you'll do it once..You need to get all the contaminated oil out of the system. Any left in the system, will just start the ball rolling for another failure..Since this one failed twice, I would "seriously" consider a firewall forward replacement of parts...
Flushing is a subject that won't soon be agreed upon by anyone..But I use brake parts cleaner, laquer thinner for parts off the car, and commercial flush, like sold here (which I do use at times), Tim likes mineral spirts, I use straight laquer thinner.. But the most important thing is to use PLENTY of shop air to get rid of the flush..That can degrade the new oil...Lubrication is very important, so you don't want to screw up your new oil
Send an e-mail to Tim or jack at Ackits.com and they can work up a good price on new parts and oil..It cheaper to do it right in the long run, believe me..

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

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