| Author | Message | ||
| Larry Nelson (Larryn4106)
Registered Member Username: Larryn4106 Post Number: 78 Registered: 8-2008 Posted From: 173.30.255.210 Rating: N/A |
My clutch is installed and I am heading to MS (9 hour drive) on Sunday to pick it up on Monday. When I had it towed, the tow driver said that when he pulled my axles, that they were dry. So, I told the shop to service my rear end when they finished with the clutch. Now...they are having trouble pulling the plug to do that. Any suggestions? Heat? PB Blaster? Also, someone told me that due to the rear end design, that he should have expected a greasy axle? I am not clear on this, any help? | ||
| Sam Summers (Greyghost)
Registered Member Username: Greyghost Post Number: 17 Registered: 4-2011 Posted From: 72.35.193.222  Rating: N/A |
Ok being new to this, why do you need to pull the axles on a manual? It is a manual transmission correct? Heating the plug and then squirting marvel sometimes gets those stuck threads working again, the heat sucks the oil up. just like when your soldering. Tap the plug also will sometimes help. My first 2 cents worth.. | ||
| john w. roan (Chessie4905)
Registered Member Username: Chessie4905 Post Number: 2086 Registered: 10-2003 Posted From: 71.58.71.157  Rating: N/A |
By removing the axles, there are no driveline parts turning that could have issues during the tow. | ||
| Luvrbus (Luvrbus)
Registered Member Username: Luvrbus Post Number: 1127 Registered: 8-2006 Posted From: 74.33.60.241 Rating: N/A |
And the GM 4106 has a lube pump for the transmission it was explained in detail on the BCM board a few days ago (Message edited by luvrbus on May 20, 2011) | ||
| Larry D Baker (Lbaker4106)
Registered Member Username: Lbaker4106 Post Number: 101 Registered: 5-2005 Posted From: 174.42.150.184 Rating: N/A |
Are you sure they are trying to remove the right plug? My 4106 has what looks like a large plug in the rear end but inside the plug is a pipe plug that comes out easy. | ||
| George M. Todd (George_todd)
Registered Member Username: George_todd Post Number: 1233 Registered: 8-2006 Posted From: 99.68.214.234 Rating: N/A |
IF the transmission on a vehicle being towed has a lube pump on the OUTPUT shaft, as well as the input shaft, there is no need to remove the axles. If the lube pump is on the INPUT shaft, no lube is provided to the turning parts of the trans while it is being towed, and a failure occurs. Most tow truck drivers remove floating axles as a cautionary measure, which I agree with fully. Secondly, the wheel bearings on vehicles equipped with floating axles (essentially all of our buses, and most everything else 3/4 ton and over) are lubricated by the gear lube in the differential. You fill it to the BOTTOM of the plug hole, which is about even with the bottom of the axles, which will properly lube the wheel bearings and the diff. If the axles came out dry, the lube level in the rear end is low! There may be enough in it to slosh out to the sides on turns, but the level is definitely lower than it should be. G | ||
| Larry Nelson (Larryn4106)
Registered Member Username: Larryn4106 Post Number: 79 Registered: 8-2008 Posted From: 173.30.255.210 Rating: N/A |
Larry, it is not me that is trying to remove the plug, it is the shop in Mississippi...I can't imagine that this thing cannot be removed with heat, etc. | ||
| Luvrbus (Luvrbus)
Registered Member Username: Luvrbus Post Number: 1128 Registered: 8-2006 Posted From: 74.33.60.241 Rating: N/A |
The GM 4106 transmission lube pump uses power from the engine good luck (Message edited by luvrbus on May 20, 2011) | ||
| Tom Caffrey (Pvcces)
Registered Member Username: Pvcces Post Number: 1375 Registered: 5-2001 Posted From: 65.74.69.252 Rating: |
As Cliff pointed out, the lube pump on a 4106 is engine mounted. That leads me to believe that an idling engine could protect the transmission, if the bus wasn't being towed a long way. Tom Caffrey PD4106-2576 Suncatcher Ketchikan, Alaska | ||
| AL (Proudeagle10)
Registered Member Username: Proudeagle10 Post Number: 84 Registered: 4-2005 Posted From: 75.106.37.70 Rating: N/A |
Seems to me, that if bad comes to worse. You can refill your lube oil thru the axle opening. Might take a little longer to do so, but it will work. Push a hose in and force lube into the differential untill it starts coming back out around the hose. AL proudeagle10 | ||
| George M. Todd (George_todd)
Registered Member Username: George_todd Post Number: 1235 Registered: 8-2006 Posted From: 99.68.214.234 Rating: N/A |
Tom is correct, a trans with a lube pump on the input side is lubed with the engine running. (Most trannies have them on the input side.) But if you tow it dead, I guarantee a failure on the output side! | ||
| Dal Farnworth (Dallas)
Registered Member Username: Dallas Post Number: 557 Registered: 7-2004 Posted From: 75.91.203.248  Rating: |
Al, If you do it that way you are asking for a failed seal problem. the problem is that the axle tubes are tapered, and the oil is carried up not by overflow, but by capillary action or by inertia. (Come on Sean and George, Lemme know how it actually does it). Loading oil in through the axle tubes will almost certainly give you a guarantee of too much oil, which has to go somewhere... sometimes by the pressure relief and sometimes by the seal. Oil out the pressure relief isn't too bad, but is messy, and won't get rid of a large amount of over fill. The only place left for the oil to go is out the seal. | ||
| George M. Todd (George_todd)
Registered Member Username: George_todd Post Number: 1236 Registered: 8-2006 Posted From: 69.234.43.137 Rating: N/A |
Dal, I don't know how it gets out there either, but it does. If you note above, I said very clearly "BOTTOM OF THE HOLE," for good reason. You are exactly right that over-filling will cause a problem, and the excess oil will come out thru either the pinion seal, or the axle seal. |
