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OnBoard Air Compressor Positioned where Engine Cover Would Be

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Old Jan 9, 2022 | 08:44 PM
  #211  
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Wow, I can't believe the EPA lets them get away with that. Some states are banning heating with wood but yet they're dumping all sorts of toxic stuff on the roads


 
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Old Aug 26, 2022 | 05:53 AM
  #212  
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Well, after 8 months and 3,955 miles, the OBA compressor has siezed due to lack of lubrication. Its replacement will get a grease nipple in the side and a good squirt of grease every 3 months. Yes @PriusLover , you told me so.

Pictures of the carnage for your viewing pleasure.

When the compressor siezed, the belt was able to overpower the friction of the clutch and tight sliding contact was made. The clutch got really hot. That schmutz attached to the clutch plate is melted bearing cage.


The ***** in the pulley bearing running around loose. Note the discoloration on the friction surface.


Back side of pulley. More free-running ***** in the bearing.


Back side bearing cage left on the nose of the compressor.


The insides are in remarkably good shape though.






The point of failure: Sliding contact point between the swashplate and the hardened piston pucks.


Scored swashplate surface.

Fortunately, my AC compressor just sprang a leak so I have a ready replacement.
 
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Old Aug 26, 2022 | 06:39 AM
  #213  
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How much was it used?

Where will grease be inserted in the new design?
 
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Old Aug 26, 2022 | 06:45 AM
  #214  
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Originally Posted by SkySkiJason
How much was it used?

Where will grease be inserted in the new design?
This was my original AC compressor from when I overhauled my AC system so it was “free”.

There is an existing gap in the internal cylinder body where a grease nipple will be pointed to shoot grease onto the swashplate. I will take pictures when I put it in.
 
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Old Aug 26, 2022 | 01:34 PM
  #215  
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@FordTruckNoob

Just to let you know that I "liked" your Post # 212 above , not because of the misfortune of your OBA compressor burning out, but rather because of your honest sharing of the results of your experiment, and the detailed pictures showing the carnage of what happened.

Lot's of folks go quiet when something they do ends up not turning out as well as they had hoped, perhaps for fear of embarrassment.

You, on the other hand, are as fearless in failures as you are in finding new paths, and this frankness of yours likely earns a lot of respect of many members who follow your exploits.

And if it doesn't, at least it earns my respect.

And that is why I liked your post.

Thank you for all that you bring to FTE.
 
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Old Aug 26, 2022 | 05:31 PM
  #216  
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Thank you for your kind words @Y2KW57 . One could also interpret my behavior as being a sucker for punishment.
 
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Old Aug 27, 2022 | 02:01 AM
  #217  
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What grease is right for this application?

Any chance this was a clutch gap issue?
 
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Old Aug 27, 2022 | 07:36 AM
  #218  
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Well, the Schaeffer 274 I put on the swashplate when I reassembled the pump the first time held out for 8 months so I'm thinking that should work well as long as it gets regular replenishment.

Oh definitely not a clutch gap issue. It disengaged like it should. The screech and the dead stop of the pump's shaft is what indicated it was siezed.
 
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Old Aug 29, 2022 | 06:09 AM
  #219  
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The OBA system is operational again.


If one grease nipple is good, two must be better right?


Both compressors got replaced at the same time. Note that the new AC compressor has the puck-style clutch.


The reason for two grease nipples: A central location would have put the nipple on top of the seam between the two halves of the external housing. Also, I wanted to make sure grease got to bothe sides of the swashplate. Note that grease nipples line up with existing hole in internal assembly.


Swashplate in central position.


Swashplate in forward position.


Swashplate in rear position.


Experimental squirt of grease shows it should reach the swashplate surface.
 
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Old Feb 5, 2023 | 05:56 AM
  #220  
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I forgot to update this thread back when I did it. OBA system pressure gauge mounted in glovebox was added back in Sep 2022.
 
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Old Mar 5, 2023 | 05:41 AM
  #221  
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I figure I should link to the gooseneck/airbag install post: https://www.ford-trucks.com/forums/1...l#post19657131
 
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Old Mar 6, 2023 | 04:19 PM
  #222  
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Originally Posted by FordTruckNoob
I figure I should link to the gooseneck/airbag install post: https://www.ford-trucks.com/forums/1...l#post19657131
Man, that was a lot of work. I never saw that post before. (A consequence of long running "catch all" threads.)

Finagling heavy steel hitch parts, removing and replacing exhaust, working under the truck, welding, etc... with similar safety in foot gear that I often wear.

What I can't quite place is the car in the background, which is intriguing because of the broader bolt circle diameter retaining the wheels. The door curve is suggestive of mid 70's 911, but the lower body sill doesn't match, and the wheels are of later era. I don't know much about fancy or exotic cars, but certain mechanical details capture my interest, and that bolt circle looks wider than 130mm.

What kind of car is it?

 
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Old Mar 6, 2023 | 04:33 PM
  #223  
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Originally Posted by Y2KW57
Man, that was a lot of work. I never saw that post before. (A consequence of long running "catch all" threads.)

Finagling heavy steel hitch parts, removing and replacing exhaust, working under the truck, welding, etc... with similar safety in foot gear that I often wear.

What I can't quite place is the car in the background, which is intriguing because of the broader bolt circle diameter retaining the wheels. The door curve is suggestive of mid 70's 911, but the lower body sill doesn't match, and the wheels are of later era. I don't know much about fancy or exotic cars, but certain mechanical details capture my interest, and that bolt circle looks wider than 130mm.

What kind of car is it?
Looks like a fiat 500. Might be a disappointment. 😂
 
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Old Mar 6, 2023 | 04:40 PM
  #224  
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Originally Posted by Tpayne621
Looks like a fiat 500. Might be a disappointment. 😂
DING DING DING DING Winner winner chicken dinner!!

That car has been sold btw.
 
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Old Mar 6, 2023 | 04:42 PM
  #225  
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Originally Posted by FordTruckNoob
DING DING DING DING Winner winner chicken dinner!!
The wheels gave it away lol
 
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