|
|
04-15-2016, 09:34 PM
|
#1
|
Senior Member
Join Date: Aug 2015
Location: Oregon
Posts: 642
|
Removing driveshaft from DP
I have an odd vibration when I am traveling at highway speeds. When I accelerate and then decelerate it sounds like I am going over the rumble strips. I have greased my driveshaft and u joints, but the sound persists. I would like to take out my driveshaft and inspect. I have checked my ride height and the rear of my coach is 1/2" low and I will correct this after re-installing the driveshaft.
Does anyone have any advice or helpful hints?
|
|
|
|
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
04-15-2016, 09:53 PM
|
#2
|
"Formerly Diplomat Don"
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 23,914
|
Because they're so stout, it's hard to grab and shake them to see if the u-joints are loose. How long have you had the coach? A previous owner may have removed the driveshaft to tow it. If the don't mark them, they can be installed 180 degrees off from where it should be. This will cause a vibration.
If yo decide to remove it, mark the position of the u-joints and pull it out. If it isn't the issue, you can put it back the same way.
__________________
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
|
|
|
04-15-2016, 09:55 PM
|
#3
|
Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,269
|
By " drive line " do you mean the drive shaft.
Typically the term drive line is used to describe every component that drives the coach , engine trans, drive shaft and differential as a group.
If you've greased the U joints , and haven't seen any rust come out of the seals with the old grease and your getting grease out of all 4 caps then.
JMHO: I'd get the low at the rear condition fixed and re-road test before looking at removing the shaft.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
|
|
|
04-15-2016, 10:05 PM
|
#4
|
Senior Member
Join Date: Aug 2015
Location: Oregon
Posts: 642
|
Quote:
Originally Posted by Skip426
By " drive line " do you mean the drive shaft.
Typically the term drive line is used to describe every component that drives the coach , engine trans, drive shaft and differential as a group.
If you've greased the U joints , and haven't seen any rust come out of the seals with the old grease and your getting grease out of all 4 caps then.
JMHO: I'd get the low at the rear condition fixed and re-road test before looking at removing the shaft.
|
Yes, I mean driveshaft..
Anywhoo, back on topic, It looks fairly simple to drop out, the coach had 44,000 before I bought it and since I have this vibration I would feel better looking at it.
|
|
|
04-15-2016, 10:23 PM
|
#5
|
Community Administrator
Fleetwood Owners Club Workhorse Chassis Owner
Join Date: Sep 2010
Location: Marquette, Michigan "Da UP" & Lehigh Acres Florida
Posts: 21,822
|
A very strong warning to you before you attempt to remove it grasp the shaft in both hands and make absolutely certain you have some sideway play in it if it's tight do not remove until you block the wheels, let the park brake off and take it out of gear then check again for slack.
If you take the joint straps off and pry the driveshaft out of the yoke under pressure you may very well have your head handed to you with out ceremony.
__________________
John & Cathy R.
06 Pace Arrow 38L Workhorse W24
|
|
|
04-15-2016, 10:38 PM
|
#6
|
Registered User
Freightliner Owners Club American Coach Owners Club
Join Date: Sep 2015
Location: Dallas, Ga.
Posts: 618
|
Noise on decel is u-joints. Follow all the safety precautions above and change them. Use Spicer. Make sure to clock your driveshaft/s correctly.
|
|
|
04-16-2016, 08:50 AM
|
#7
|
Senior Member
Join Date: May 2012
Location: Spring Valley AZ
Posts: 1,226
|
Good advice here.
I replaced my front ujoint before the last trip because while under the unit I looked at the front of the driveshaft and saw this
I pulled the shaft and the front joint looked like this (no vibes. no sounds)
__________________
Don, Mary and Spooky
'00 Bluebird Skoolie Conversion
Geo Tracker/Dodge Neon/Aprilia Scooter towed
|
|
|
04-16-2016, 08:58 AM
|
#8
|
Senior Member
National RV Owners Club
Join Date: Feb 2012
Location: Spokane Valley, Wa
Posts: 1,987
|
I would fix the ride height first as most allow only a 1/4 inch out of spec's before you
start having trouble and I can tell you being out of spec's will cause all kinds of noise and failure of u-joints.
Make sure you measure the height at the proper place for your chassis.
__________________
Art
1999 Trade Winds 7371 Cat 3126B w/current upgrades
1990 D 250 Dodge Ram Cummins Turbo
|
|
|
04-16-2016, 09:01 AM
|
#9
|
Senior Member
Join Date: May 2014
Location: Henderson, Nevada
Posts: 1,224
|
Gotta squirt grease in those ...Boys!
__________________
2005 Newmar DS 4023, Spartan Chassis, ISL 370 Cumapart, 2008 Jeep Rubicon 4dr, 2015 Kia Soul, 1969 Italian & 2004 Akita
|
|
|
04-16-2016, 09:02 AM
|
#10
|
Senior Member
Join Date: May 2014
Location: Henderson, Nevada
Posts: 1,224
|
Quote:
Originally Posted by DonDee
Good advice here.
I replaced my front ujoint before the last trip because while under the unit I looked at the front of the driveshaft and saw this
I pulled the shaft and the front joint looked like this (no vibes. no sounds)
|
And no grease...
__________________
2005 Newmar DS 4023, Spartan Chassis, ISL 370 Cumapart, 2008 Jeep Rubicon 4dr, 2015 Kia Soul, 1969 Italian & 2004 Akita
|
|
|
04-16-2016, 09:26 AM
|
#11
|
Senior Member
Join Date: Feb 2010
Posts: 4,654
|
Tasks
First is get the ride height correct as it directly impacts the drive shaft.
Too much angle and it is not going to like it.
Next you cannot shake it but yiu can look at it with a helper.
Drive it up on blocks or a he'll or dip in driveway so you can slide under to see the drive line and u joints.
Get a cell phone with hands free for you and another for your helper.
Show helper how to insure park brake on and STAND ON BRAKE PEDAL while placing unit into drive then reverse then back into drive.
First at idle then adding some throttle just as it shifts.
Practice first.
Be sure the mh does not move then have helper practice and after you are certian then go watch and direct helper.
Look for any movement in the parts of the shaft.
Sloppy u joints will allow the parts to shift as the stresses reverse.
__________________
Tony & Lori
1989 Country Coach Savannah SE
|
|
|
04-16-2016, 10:38 AM
|
#12
|
Senior Member
Join Date: May 2014
Location: Henderson, Nevada
Posts: 1,224
|
The "Ride" height should have not changed without messing with the leveling valves, your vibration is either the u joints not being serviced or you drive Tires cupping, I'm going with #1...
__________________
2005 Newmar DS 4023, Spartan Chassis, ISL 370 Cumapart, 2008 Jeep Rubicon 4dr, 2015 Kia Soul, 1969 Italian & 2004 Akita
|
|
|
04-17-2016, 02:34 PM
|
#13
|
Senior Member
Join Date: Aug 2015
Location: Oregon
Posts: 642
|
Thanks for all the tips. I got the driveshaft out today, it was fairly simple.
All the u-joints move freely and I don't feel any grinding. Is there anything else that I should look for before re-installing?
The splined part has a collar that was just hand tight. How tight should it be?
thanks
|
|
|
04-17-2016, 03:47 PM
|
#14
|
Senior Member
Join Date: Jul 2014
Posts: 35,317
|
Look for correct shaft phasing.
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Thread Tools |
Search this Thread |
|
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|