Community Forums

Kickman921 · 11-09-2020, 01:16 PM

While on a trip last September to Maine from Florida on the way back, I developed an inner oil seal leak on passenger side. Had a mobile mechanic come out (nashville) replaced seal and I was headed home to Florida. After returning home I noticed it was leaking again.

So once again I had a mobile truck mechanic with experience on the W22 come out and do an entire bake job, including rotors, calipers, shoes and inner seals all parts from Ultra RV Products.

Wanted it done right once and for all.

On the way home from another trip to Florida, I developed another leak on the same passenger seal. Bought another seal from Ultra RV had a workhorse authorized shop repair this along with a broken driver's side exhaust manifold.

So its leaking again. Going back to that authorized shop for a failure analysis. Yes that seal does utilize the race. So I am just baffled at what it could be.

Any thoughts?
Dan

Arch Hoagland · 11-09-2020, 03:04 PM

Sounds to me like you need to quit going to Florida....

GREGORYJ · 11-09-2020, 03:10 PM

Is it the passenger front or rear inner axle seal you are referring to ?

Kickman921 · 11-09-2020, 03:13 PM

Sorry I should have mentioned it was the front passenger inner seal.

Bob_C · 11-09-2020, 03:18 PM

Sounds like something is out of round......possibly the axle tube deforming the race...

Ray Lenning · 11-09-2020, 04:56 PM

Did you watch the repair to see if the wear ring that the front inner seal rides on was replaced ?
I ask this question because I recently did the same job on our 2005 Dolphin ( less the calipers) and was told by the guy I ordered the seal from , (That said he was also a tech) that replacing the wear ring was not necessary , just replace the seal . Well I ignored that advice and replaced the wear ring . 2,000 miles since repair and leak free so far .

Full-Timers · 11-09-2020, 07:51 PM

I had the same issue. After about the 3rd or 4th seal the shop found that where the seal goes was out of round ever so slight. They applied silicone to the last seal (said they do this to a lot of big rig trucks) and all is well now.

Ray Lenning · 11-10-2020, 07:42 AM

There should be Sealant applied to the front spindle before the new wear ring is driven onto the spindle . Permatex # 2 or equivalent is the recommended type . If the sealant is not applied the oil can weep between the spindle and the wear ring . Check out Kevin Caudill's YouTube video on the process , it's very detailed .

Kickman921 · 11-10-2020, 07:43 AM

Bob Caldwell, I suspect spindle might be slightly deformed. I confirmed both #1,2 and 3 mechanics used the wear ring. NUMBER 1 and 2 scoffed at using RTV. I insisted number 3 use it, he said he did.

I suspect that the rtv has a cure time that was ignored or not followed. I need to follow up on if it needs a cure time or not before adding hub oil.
Thanks all

Bob_C · 11-10-2020, 08:30 AM

At one time I shared a shop with a guy who worked on big rigs......when he found a problem like that, or worse, he'd call a portable grinding service and they could grind the spindle while still installed......if it was really bad, they'd weld it up, then grind.....