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missnu
03-12-2011, 02:34 PM
Just wanted to post about this service call I went on for a new account and the carnage I found. Oil was all over the roof. This job was repaired and completed last July 2010. GWS bearing head assembly.


http://i287.photobucket.com/albums/ll159/missnu-1946/2010-06-25095015.jpg

http://i287.photobucket.com/albums/ll159/missnu-1946/2010-06-25103302.jpg
Tech Rob
03-12-2011, 04:48 PM
Holy crap! I have never seen one do that! lol
missnu
03-12-2011, 07:56 PM
It was my first time ever seeing one do that also. When I say repaired, another 06D was installed after a new bearing head assembly was tried. Immediately upon start up the 06D pulled LRA. I recommended replacing the 06D instead of messing with the bearing head but that didn't happen. As my mentor used to say, "Some people pinch pennies, while the dollar walks right out the door."
Octopus
03-13-2011, 01:42 PM
Did u pull the old one apart to see what happened?
Dallas Duster
03-13-2011, 02:19 PM
I`ve seen that happen on a 06E one time.
Octopus
03-13-2011, 02:20 PM
Do you know what did it?
Cajunhvac
03-13-2011, 03:51 PM
Do you know what did it?

I think I know. Well, Not exactly why without inspecting the compressor but in general...

It's pretty obvious by looking at the bearing head that it failed due to excessive axial loading. The only way that was possible is for it to "bottom" out against the crankshaft before it seated against the case during assembly. As the bolts around the bearing head were tightened they attempted to bend the outer ring of the bearing head to meet the compressor case. Cast iron doesn't bend very well so this is the result.

As for why that happened, incorrect thrust washer or improperly machined crankshaft would be my guesses.
Octopus
03-13-2011, 04:43 PM
I think I know. Well, Not exactly why without inspecting the compressor but in general...

It's pretty obvious by looking at the bearing head that it failed due to excessive axial loading. The only way that was possible is for it to "bottom" out against the crankshaft before it seated against the case during assembly. As the bolts around the bearing head were tightened they attempted to bend the outer ring of the bearing head to meet the compressor case. Cast iron doesn't bend very well so this is the result.

As for why that happened, incorrect thrust washer or improperly machined crankshaft would be my guesses.

I was thinking along the same lines.
basshound71
03-13-2011, 04:51 PM
Holy crap! I have never seen one do that! lol

WOW!!!!! Amazing. Never seen it either.:censored: