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CAC deformity - Hammerhead - 07-20-2016
Has anybody else ever seen this happen to a new KW OEM reman CAC?
I just posted about two weeks ago installing this...since then, I've gone empty stacked up (68,000lbs on 5 axles) to Milwaukee, loaded a by my standards quite light load weighing 71,000lbs, grossing about 140,000lbs on 9 axle. Took that 1950miles to Ft McMurray, AB. Then came empty back to the shop in Edmonton. Total just over 4000miles.
I have a mechanical boost gauge, and the highest I saw was a 41psi spike that settled to 38-39psi.
This is the center section of the bottom tube. They are rectangular in the KW T800 Wide Hood, this section is deform damn near round! I broke a couple bug screen turnbuckles and climbed inside the hood to change them and found this by accident!
I don't currently have a leak tester to check of it leaks. I'm waiting for KW to call me back to find out what they want to do...
[attachment=1738]
RE: CAC deformity - Hammerhead - 07-20-2016
A close up. You can see that the rectangular tube is now round and the fin separation is quite obvious...
[attachment=1739]
The "white part" is the top and bottom of what is supposed to be a rectangular tube!
RE: CAC deformity - Waterloo - 07-20-2016
I just tested my CAC on my ProStar due to my new turbo failing, I have the tools to do it here at the house... I took it up to 35 psi and she held. I cannot imagine 41 psi doing that, but what do I know? BUT, it sure does look like an internal failure to me. Damn sure looks like pressure blew it out, a hell of allot of pressure! Unless, it is a reman, maybe the metal was severely fatigued and it just blew? Kind of where I am leaning, but I am not a mechanic nor an engineer...
RE: CAC deformity - Unilevers - 07-20-2016
was it installed incorrectly? ive seen some that were not rubber mounted and stretched out like this.
RE: CAC deformity - Hammerhead - 07-20-2016
This was from when I got it out and dropped it off at KW for warranty and to pick up another one...
[attachment=1740]
(07-20-2016 )Unilevers Wrote: was it installed incorrectly? ive seen some that were not rubber mounted and stretched out like this.
I would hope so, it's probably the 10th one I've done...I bought a complete new mount kit, complete with rubber bushings. It's not bowed, out, only down, and only in the center. It was snug, but movable with a pry bar on the rubber bushings as per normal/spec.
I know what you mean about "installed properly" I've seen bad installed CAC's, the design of the T800 WH has the collar bolt/bushing opposing a "hanger hook" which is flexible and it would be difficult due to the size of these CAC's to actually compress one side to side. In fact I would think almost impossible on an OEM rad cage.