Community Forums

Scooter · 02-22-2014, 03:19 PM

Think I got it right, just want to be sure. My WH books only mentions sight glasses to check the level.

I don't have the clear plastic cover or sight glass. It is a solid rubber cap. I pulled it off and can see just a bit of oil.... down low.

The outer ring has a circle saying "minimum oil level" The ring is about one-half inch below the open hole.

I plan to find some 90wt GL5 or 80-90wt GL5 and fill a bit more above the "minimum oil level" marking and let it set for an hour or more to see if it settles.

Good approach?

edgray · 02-22-2014, 03:37 PM

Yes, you're on the right track. Pull the rubber plug from the center of the seal and fill until it is just below the bottom of the plug hole. Re-install the rubber plug. Use synthetic gear lube-that's what came in it originally.

Don't overfill by adding thru the screw-off cap because that WILL make a mess you don't want to clean up.

Scooter · 02-23-2014, 07:11 AM

Hi Ed and thanks for the reply. I'm not positive synthetic was used originally. The WH Owner's Manual says: SAE 90W GL-5 Gear Oil.

Synthetic fluids are specified only for the rear diff and manual 5-speed trans.

Scooter · 02-23-2014, 12:25 PM

I looked around some more. (We are second owners from 2012.). Factory oil was W/H p/n 1052227. From reading a thread by wa8yxm on 7/26/09 "Wet Hubs", it seems clear as mud.

I have no prior service records. From what I deduce.....if the original oil was changed out to synthetic (probably not since there is only 31K miles on the ODO), it would not hurt to add an ounce or 2 or 3 of either synthetic or mineral based oil and mix them to bring up to the proper level.

Anyone want to jump in?

wa8yxm · 02-23-2014, 01:05 PM

Being the subject who started that thread you just cited. I agree with your evualation

Here is what I got out of it.

You have two circles (one is the rubber ring one is the outer ring

Level should be below rubber, and within the outer ring.

garyvont · 09-28-2015, 05:14 PM

Mine was down to the "minimum" circle. Using the screw-on cap, I filled it up to the center of the rubber plug. Drove just <100 miles today, and the level is down ALMOST to the minimum line. I know this is not a lot of volume, but I can't see any oil leaking out around the inner side of the axel. Does anyone know if this lowering of level is common, or might I have a leaking seal, or ??? Any thoughts, or knowledge, would be greatly appreciated!
Gary

kk7gc · 10-05-2015, 01:42 PM

After my brake recall was done, I had to add gear oil a couple of times before it all worked in and stabilized.

garyvont · 10-06-2015, 08:07 AM

While working on the underside of our '07 with 20,000 miles, I discovered a film of oil and dust covers practically the entire undercarriage. THIS IS A FIRE HAZARD!!! Engine and transmission are leak free, but the inside of the front rims are thick with oil/dust residue, which would seem to indicate the inner hub seals are leaking. This coach didn't get a lot of use - or maintenance - and I suspect the seals have dried out a bit. The oil level on each side was at or below the minimum on each wheel when we bought it.

Does anyone know if this is typical on the WH chassis?? I do not want to replace seals if this is just a design flaw we all have to just live with!

I drained the hubs yesterday, and refilled them with Lucas Hub Oil, which claims to stop leaking seals and fix a plethora of other hub-related problems. And yes, it does take some time for that thick oil to settle to being level!

I sure would appreciate hearing others' experience with this leaking issue, and how they dealt with it!

Gary

garyvont · 10-06-2015, 08:14 AM

While working on the underside of our '07 with 20,000 miles, I discovered a film of oil and dust covers practically the entire undercarriage. THIS IS A FIRE HAZARD!!! Engine and transmission are leak free, but the inside of the front rims are thick with oil/dust residue, which would seem to indicate the inner hub seals are leaking. (I can't believe I totally overlooked all this oily residue before!! I was just focused on the inner hub are, and was looking for fresh oil. Good thing I'm not a doctor, eh?!)

This coach didn't get a lot of use - or maintenance - and I suspect the seals have dried out a bit. The oil level on each side was at or below the minimum on each wheel when we bought it.

Does anyone know if this is typical on the WH chassis?? I do not want to replace seals if this is just a design flaw we all have to just live with!

I drained the hubs yesterday, and refilled them with Lucas Hub Oil, which claims to stop leaking seals and fix a plethora of other hub-related problems. And yes, it does take some time for that thick oil to settle to being level!

I sure would appreciate hearing others' experience with this leaking issue, and how they dealt with it!

Gary

garyvont · 10-28-2015, 07:25 PM

I've driven 1600 miles since I've drained and refilled the front hubs with Lucas Hub Oil. I filled them to the center of the rubber plug several times, before driving the coach. The level has now settled - and held - at about the half-way point between the "minimum level" ring, and the center of the rubber plug. I also notice that a small amount of oil is being slung toward the outer portion of the rims, and is coming through the holes in the Alcoa wheels. The Hub Oil has remained at this level long enough for me to conclude that THIS is the proper level at which to fill the hubs, and, that the Lucas Hub Oil has apparently softened up the formerly leaking seals. Hope this helps "Ya'll"!
Gary

edgray · 10-28-2015, 09:11 PM

Quote:

Originally Posted by garyvont

I've driven 1600 miles since I've drained and refilled the front hubs with Lucas Hub Oil. I filled them to the center of the rubber plug several times, before driving the coach. The level has now settled - and held - at about the half-way point between the "minimum level" ring, and the center of the rubber plug. I also notice that a small amount of oil is being slung toward the outer portion of the rims, and is coming through the holes in the Alcoa wheels. The Hub Oil has remained at this level long enough for me to conclude that THIS is the proper level at which to fill the hubs, and, that the Lucas Hub Oil has apparently softened up the formerly leaking seals. Hope this helps "Ya'll"!
Gary

Gary: the bottom of the hole into which the rubber plug is inserted is the MAX oil level. Any oil above the bottom of the plug hole will eventually weep out around the plug and generally make a mess on the outside of your wheels.