Who are the experts on the Air compressor

[MatthewWBailey]

As far as I can tell the springs are the same type. The kits come with instructions that have been photocopied too many times..... I doubt any real thought has been put into this design in the last ~50 years. It's VERY old technology. I worked for a compressor repair and manufacturing company and rebuilt MANY Quincy recip compressors - quite a few were from the 1950's and 1960's (mind you this was about 2007) and came out of naval and coast guard ship applications, military bases, and tons of industrial applications. Be glad they used a disc valve compressor - much more long lasting and reliable than the consumer grade reed-valve crap that is used in every home depot and craftsman garage compressor. And *usually* doesn't result in catastrophic failure - of course my own example being the outlier in that regard. But that goes to show how much abuse our trucks lived with in their service life. My truck had 2,750 miles on it when I bought it. About 5,500 miles when the compressor failed. Come to find out the dryer cartridge was original from 2008

These perform fine when properly and timely serviced. They just never got that in their former life and they are often still overlooked in their current life.

Thanks for jumping to the head of the line on next bench project.

 

[GeneralDisorder]

Let us know how the chinese springs look compared to the OE. I wasn't brave enough to go that route.

 

[MatthewWBailey]

Let us know how to chinese springs look compared to the OE. I wasn't brave enough to go that route.

Made in Taiwan is practically made in America nowadays, compare to China

 

[MatthewWBailey]

Let us know how to chinese springs look compared to the OE. I wasn't brave enough to go that route.

As you can see my regulator has been to Ukraine and back.

 

[MatthewWBailey]

Let us know how to chinese springs look compared to the OE. I wasn't brave enough to go that route.

 

[j_boucher]

View attachment 929757

Seems the Chinese already installed the orings

 

[GeneralDisorder]

And those springs look different. Shinier. The o-rings are silicone or viton by the looks of them which should be good for higher thermals..... I'm not horrified by the look of that kit and the price point is attractive. Maybe they made improvements.

 

[GeneralDisorder]

As you can see my regulator has been to Ukraine and back.

Naw that's the Bluetooth edition.

 

[j_boucher]

So what is the secret to get the top Allen head bolt off for the power steering pump

 

[MatthewWBailey]

So what is the secret to get the top Allen head bolt off for the power steering pump

Lol that one! Cursing works. I used a modified Allen wrench to loosen then work by hand.

 

[j_boucher]

Lol that one! Cursing works. I used a modified Allen wrench to loosen then work by hand.

Stupid , Stupid, Stupid design

 

[GeneralDisorder]

Never had any issue whatsoever with the PS pump interface. I remove the compressor with the PS pump attached to it and break the whole thing down on the bench if I'm going to be going in that far. I've done several of them now. Never even gave it a second thought using my method.

 

[MatthewWBailey]

It's an initiation into the club, like the oil cooler bracket and the starter and the oil pan and the...

But once you're in the club you can never get out.

 

[j_boucher]

Never had any issue whatsoever with the PS pump interface. I remove the compressor with the PS pump attached to it and break the whole thing down on the bench if I'm going to be going in that far. I've done several of them now. Never even gave it a second thought using my method.

When the time comes I guess i will try that method / how much fluid is lost from PS

 

[GeneralDisorder]

When the time comes I guess i will try that method / how much fluid is lost from PS

Very little. Just the reservoir contents - I usually just dismount the reservoir. It takes standard cheap 10w hydraulic fluid (tractor fluid).

 

[Gunny 0369]

Yep. Pretty much guaranteed nearly everyone on this forum has exhaust valve springs that look exactly like that. Except me of course.

Gen Disorder is right, change them out.

AO 3116 with 30,000 mi
Broken exhaust spring

 

[j_boucher]

View attachment 929757

Hows this kit working out ?

 

[MatthewWBailey]

Hows this kit working out ?

It's still on the bench. I had to finish 1250' of irrigation pipe on the ranch before winter comes so the truck got bumped out of line. I replaced this compressor with a new one that was off the rebuilt Crate engine I bought. So this'll be my spare, once I do the overhaul.