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8WA Sman

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Posts posted by 8WA Sman

  1. This is an update correction to the above post and hopefully everyone that read the original post will read the update so as to not mislead anyone.

    After dissecting 1 hub several weeks after installing the 2 new hublocks and not finding the diaphragm leaking I got the sinking feeling my diag and understanding of exactly how these hubs work was not 100% accurate. I made a test stand which lead me to suspect when this problem occurs(leak in the Ford logo) that the problem is actually with the orange O-ring.....Well I saved the 2nd hub and installed it on a truck today and my suspicions were correct. Thankfully both old hublocks had noisy center splines but my diag was still not 100% accurate. So it looks like I will be writing my own stimulus check to the owner..Edumacation ain't cheap:twack:

  2. I had a 2014 SD with Auto hubs inop. Smoke test revealed cracked LF knuckle hose. Replace hose now smoke test passed unless I was rotating the wheel beraing(.010 in hg of flow)  but vacuum test failed on both hubs. I couldn't even get 5" in hg while constantly pumping. So hooked up my brake bleeder and started spraying around listening for that sucking on an empty straw noise.B) I noticed when I sprayed around the Ford logo it would dry out quickly. So I put a piece of tape there and could see the vacuum making the logo more defined. Now with a hand pump the vacuum would hold then instantly drop when the tape was removed.

     

    Hub - Copy.jpg

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