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HR6HE Gasket and "O" Ring Kit

wptski on Sun July 07, 2013 10:10 PM User is offline

Replacing the shaft seal, gaskets and "O" rings on a HR6HE using the pictured kit which is for a DA6 as well. Wondering what the two "O" rings at the bottom left are for? I have a diagram from a old book that shows nothing like them used but in a diagram from this site shows one on the pressure switch and relief valve but they can't be the right size going by the numbers.



Edited: Mon July 08, 2013 at 8:25 AM by wptski

GM Tech on Sun July 07, 2013 10:31 PM User is offline

Your phot bucket photo wants us to sign in---

without looking- I'd say they are either the switch port casvity o-rings or the old style suction/discharge port o-rings

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The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

wptski on Mon July 08, 2013 8:24 AM User is offline

Image didn't work from my Android tablet and even had trouble from my PC, fixed it with some trial/error editing. The part number in the diagram are for a nominal 3/8"x1/2" and a 3/4"x7/8". The small one is too small and the larger one is too big. The other two are for the intake/exhaust ports. Maybe the DA6 uses them but the diagram is for different models but these two are shown for all models.



Edited: Fri August 02, 2013 at 4:10 PM by Automotive Air Conditioning Information Moderator

GM Tech on Mon July 08, 2013 12:14 PM User is offline

I'd say HPRV and switch port

-------------------------
The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

wptski on Mon July 08, 2013 2:40 PM User is offline

Quote
Originally posted by: GM Tech
I'd say HPRV and switch port
Can't be as that's a -012N/-118N "O" rings which I looked up and the ID/OD aren't even close to what's in the kit. Unless the diagram is wrong?

I should check the suggested "O" ring kit I got from AMA for the vehicle and see if anything close is included.


Edited: Mon July 08, 2013 at 2:44 PM by wptski

wptski on Mon July 08, 2013 7:58 PM User is offline

Pulled the switch and the relief valve. It appears that the numbers in the diagram are wrong but the larger switch "O" ring from the Santech kit seems correct but the smaller one is way too small. Once stretched over the threads it'll be way to thin to fill the pocket for it. I found the numbered one in the "O" ring kit from AMA but now I'll have to look again for the correct one.

wptski on Wed July 10, 2013 8:49 PM User is offline

I got that GM seal removed 90846 from AMA. It's supposed to grip the metal part of the seal for removal, I assume while still assembled. First of all, I run the screw part down a bang, it jams solid. Have to grip using brass jaws in a vise. Either there is a sharp edge nor allowing it to go down far enough or the two pieces aren't concentric with each other. Using a screw driver I spread the collet segments enough so it starts in. The darn thing is so hard to tighten up even with heavy gloves, it's useless and a waste of $20. I flipped it over and used a screw driver to knock the seal out.

The problem with the removal tool was found to be nicks on the threads, it would work if needed "now"!

Funny, I read an old post on how good it worked on a R4. Maybe I got a bad one??

This OEM compressor had no felt wiper behind the seal, is that something that was added on later ones? Just fill the area in front of the seal as needed?


Edited: Thu July 11, 2013 at 7:23 PM by wptski

wptski on Fri August 02, 2013 3:07 PM User is offline

Just found out that the two "O" rings that looked like they were for the manifold aren't! The OEM's are not only smaller but the sides are more flatter than round. The early GM "O" ring kit I got from AMA does have some that are exactly like the OEM's, flat sides and all. If they should happen to leak, I'll try the fatter ones as maybe it an improvement on the OEM's but they might be too big or at it looks like it right now.

What is it with this Santech kit? This is the second time that this kit contains the wrong "O" rings!

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