'88 350D rear axle shaft binding - Honda ATV Forum
Honda FourTrax Discussions for the FourTrax Rincon, Foreman, Rancher, Recon

 10Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 15 (permalink) Old 03-25-2019, 07:26 PM Thread Starter
Senior Member
 
Duck0fDeath's Avatar
 
Join Date: Jan 2018
Location: Pocahontas, Arkansas
Posts: 324
Liked: 239 times
'88 350D rear axle shaft binding

I pulled the rear end assembly from the 88 parts bike I got last week. I was supposed to ship it to someone. When I flushed the diff and checked the ring gear a few days ago while on the bike it seemed to look and turn great. Now that I've got it on the bench the shaft seems to bind. It turns freely in both directions a few inches but then binds slightly. You can keep going back and forth and it frees up in that spot until you go 180 degrees and then it binds again. Sound like wheel bearings? I removed the brake drum already, hoping it was just the brakes. There's no play in the pinion or in the axle shaft at the wheels.

'87 TRX350D
Duck0fDeath is offline  
Sponsored Links
Advertisement
 
post #2 of 15 (permalink) Old 03-25-2019, 07:58 PM
Super Moderator
Supporting Member
 
shadetree's Avatar
 
Join Date: Feb 2010
Location: north little rock, ar.
Posts: 35,750
Liked: 4077 times
Garage
open the diff case, have a look at all the teeth on the pinion gear and ring gear, as well as the axle splines. with any luck, all it needs is new bearings.

'89 trx350D foreman 4x4...'85 vf700c magna, '03 trx450fm foreman 4x4 , 2015 Yamaha waverunner fx cruiser ho, '08 vt750c2 shadow spirit
shadetree is offline  
post #3 of 15 (permalink) Old 03-25-2019, 09:28 PM Thread Starter
Senior Member
 
Duck0fDeath's Avatar
 
Join Date: Jan 2018
Location: Pocahontas, Arkansas
Posts: 324
Liked: 239 times
I can see the ring gear teeth through the fill plug. They look great. I assumed from that info the pinion gear is likely good too. Went back out to the shop and found that it's not really binding, there's just more resistance than there should be. It spins freely the more you work it. I haven't had to do bearing before on these. Guess I need to tackle it though.

'87 TRX350D
Duck0fDeath is offline  
Sponsored Links
Advertisement
 
post #4 of 15 (permalink) Old 03-25-2019, 09:32 PM
Super Moderator
Supporting Member
 
shadetree's Avatar
 
Join Date: Feb 2010
Location: north little rock, ar.
Posts: 35,750
Liked: 4077 times
Garage
Quote:
Originally Posted by Duck0fDeath View Post
I can see the ring gear teeth through the fill plug. They look great. I assumed from that info the pinion gear is likely good too. Went back out to the shop and found that it's not really binding, there's just more resistance than there should be. It spins freely the more you work it. I haven't had to do bearing before on these. Guess I need to tackle it though.
you can not see all of the ring gear teeth with the cover on bro ?..only the outer ends you can see through the filler cap. the pinion gear teeth use up all of the ring gear teeth, not just the ends !. this is why I said to pull the case cover, and have a look, besides, if your gonna replace the bearings ?, you will need to do this anyway :-).

'89 trx350D foreman 4x4...'85 vf700c magna, '03 trx450fm foreman 4x4 , 2015 Yamaha waverunner fx cruiser ho, '08 vt750c2 shadow spirit
shadetree is offline  
post #5 of 15 (permalink) Old 03-25-2019, 09:33 PM
Super Moderator
Supporting Member
 
shadetree's Avatar
 
Join Date: Feb 2010
Location: north little rock, ar.
Posts: 35,750
Liked: 4077 times
Garage
before you go tearing any bearings out ?..MAKE SURE YOU CAN GET A REBUILD KIT FOR IT !!!!!!.

'89 trx350D foreman 4x4...'85 vf700c magna, '03 trx450fm foreman 4x4 , 2015 Yamaha waverunner fx cruiser ho, '08 vt750c2 shadow spirit
shadetree is offline  
post #6 of 15 (permalink) Old 03-25-2019, 09:49 PM
Super Moderator
Supporting Member
 
retro's Avatar
 
Join Date: Mar 2017
Location: Ojibwe Gichigami
Posts: 5,193
Liked: 2603 times
My .02 cents... I think its probably a standard case of factory axle runout. Everyone of those axles are slightly bent from the factory. Lay the axle in V-blocks and rotate it by hand and you'll see what I mean. I've never seen an SRA Honda axle that didn't measure having at least .020" of runout and most of them measure between .025" & .030" out.

Other than that it could be a dry wheel bearing contributing. If you suspect a dry bearing you can hit it with a heat gun or a hair dryer to find out... see if that fixes it. If so, repack and ship. :-)


retro is offline  
post #7 of 15 (permalink) Old 03-26-2019, 05:31 AM Thread Starter
Senior Member
 
Duck0fDeath's Avatar
 
Join Date: Jan 2018
Location: Pocahontas, Arkansas
Posts: 324
Liked: 239 times
You can repack those bearings? They look like the sealed kind from the pictures I'm seeing.
retro likes this.

'87 TRX350D
Duck0fDeath is offline  
post #8 of 15 (permalink) Old 03-26-2019, 08:34 AM
Senior Member
 
Jeepwm69's Avatar
 
Join Date: Sep 2013
Location: Eastern Arkansas
Posts: 6,075
Liked: 2862 times
I wouldn't put new bearings in there if there isn't play in the ones in there now. Pull the diff, unbolt the case halves, and pull the diff in two (make sure you keep up with the shims and keep them on the ring gear on the same side they're on now).

Clean out the casings and lube those bearings. They've probably been setting up for months if not years. Lube them up good with some gear oil, and grease the bearings in the brake housing and left axle tube, and put it back together. Those factory bearings are better than anything else you're going to get, so if there isn't play in them, clean them out and then re-lube them up and get them spinning freely, and leave them in there.
retro likes this.
Jeepwm69 is offline  
post #9 of 15 (permalink) Old 03-26-2019, 09:48 AM
Super Moderator
Supporting Member
 
shadetree's Avatar
 
Join Date: Feb 2010
Location: north little rock, ar.
Posts: 35,750
Liked: 4077 times
Garage
Quote:
Originally Posted by Duck0fDeath View Post
You can repack those bearings? They look like the sealed kind from the pictures I'm seeing.
you don't repack differential bearings bro, they must be open, and ride in gear oil at all times :-).
Jeepwm69 likes this.

'89 trx350D foreman 4x4...'85 vf700c magna, '03 trx450fm foreman 4x4 , 2015 Yamaha waverunner fx cruiser ho, '08 vt750c2 shadow spirit
shadetree is offline  
post #10 of 15 (permalink) Old 03-26-2019, 11:00 AM
Senior Member
 
Jeepwm69's Avatar
 
Join Date: Sep 2013
Location: Eastern Arkansas
Posts: 6,075
Liked: 2862 times
Yep! But you can flush them (and the diff housing) out good and then put some clean oil in them and I'll bet they roll smoother!

But do repack the brake housing bearing and the left tube bearing with grease.
shadetree and retro like this.
Jeepwm69 is offline  
Reply

  Lower Navigation
Go Back   Honda ATV Forum > Honda Model Specific Discussions > Honda FourTrax

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Honda ATV Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
300 rear ends and a 350D pinion bearing question Jeepwm69 Repair & Maintenance 6 11-06-2017 06:19 PM
TRX250EX axle shifted?!?!? Need Advice VIRDOC Repair & Maintenance 6 09-21-2017 06:25 PM
Trx350d locker 4trax1986 Performance Modifications 35 06-24-2017 02:11 PM
Fourtrax 350 rear axle shaft mitchellkend Honda FourTrax 7 05-15-2017 12:41 PM
2005 Rancher Leaking left Rear Axle ph_knox Honda Rancher 13 12-22-2016 10:59 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome