C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Tight Rear-End: Car Does Not roll

Thread Tools
 
Search this Thread
 
Old 09-01-2001, 09:41 AM
  #1  
JeffReed
Instructor
Thread Starter
 
JeffReed's Avatar
 
Member Since: Aug 2000
Location: Lewisberry PA
Posts: 163
Likes: 0
Received 1 Like on 1 Post

Default Tight Rear-End: Car Does Not roll

I'm nearing the end of a long restoration. I have a problem with something in the rear of the car. It will not roll easily, its takes my 245lbs fat butt all it can to move the car a few inches at a time. I removed the 1/2 shafts and the problem persists. I "think" I adjusted the emergency break all the way because it looked like the new pads were rubbing a little.

Someone told me this is a typical problem with the older C3's, but its not obvious to a novice like me how to resolve it. Any suggestions on where to look to make this thing easy to push around the garage?

Thanks!


Old 09-01-2001, 10:44 AM
  #2  
dually4wd
Racer
 
dually4wd's Avatar
 
Member Since: Oct 2000
Location: Ft Walton Bch FL
Posts: 329
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Tight Rear-End: Car Does Not roll (JeffReed)

Do the tires squeak on the floor when you push on it? It could be the alignment. Mine was easy to push until I pulled the motor out and upset the front-end alignment. If it's brake pads rubbing, you'll probably have to suffer until you drive it and scuff 'em in a little.
Old 09-01-2001, 12:19 PM
  #3  
KenSny
Melting Slicks

 
KenSny's Avatar
 
Member Since: Apr 2001
Location: Olmsted Falls, Ohio
Posts: 3,399
Received 276 Likes on 201 Posts

Default Re: Tight Rear-End: Car Does Not roll (JeffReed)

I can push mine about halfway in & out of the garage with one hand pushing on a rear tire. I don't push using the body or door jam area. Car has engine and everything installed, I just don't always want to start it to get up in the garage attic. So I guess mine pushes fairly easy.
Old 09-01-2001, 12:29 PM
  #4  
Matt Gruber
Race Director
 
Matt Gruber's Avatar
 
Member Since: Oct 2000
Location: New Smyrna Beach, FL
Posts: 12,893
Received 75 Likes on 51 Posts

Default Re: Tight Rear-End: Car Does Not roll (JeffReed)

if the shoes touch at all it will be hard to push. But it will loosen up when you start driving it.
Old 09-02-2001, 09:18 AM
  #5  
JeffReed
Instructor
Thread Starter
 
JeffReed's Avatar
 
Member Since: Aug 2000
Location: Lewisberry PA
Posts: 163
Likes: 0
Received 1 Like on 1 Post

Default Re: Tight Rear-End: Car Does Not roll (dually4wd)

Nope, the tires don't squeak at all. The car seems to track straight. The car passed state inspection and I dorve it about 20 miles home. The car pulled very slightly to one side, but nothing that indicated a major mis-alignment.

Thanks!
JR
Old 09-02-2001, 09:34 AM
  #6  
L. Jackmin
Racer
 
L. Jackmin's Avatar
 
Member Since: Oct 1999
Location: Cortland, NY, USA
Posts: 353
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Tight Rear-End: Car Does Not roll (JeffReed)

If you jack it up and disconnect the half shafts will the rear wheels turn?

If not, it's proably the emergency brakes or (hopefully not) a problem with the rear wheel bearings or spindle assembly.

Good luck.

LMJ
Old 09-02-2001, 09:40 AM
  #7  
JeffReed
Instructor
Thread Starter
 
JeffReed's Avatar
 
Member Since: Aug 2000
Location: Lewisberry PA
Posts: 163
Likes: 0
Received 1 Like on 1 Post

Default Re: Tight Rear-End: Car Does Not roll (L. Jackmin)

I removed the 1/2 shafts and it made no difference. I was a little optimistic because that should eliminate problems with the rear differential.

I was hoping it was the E-brake shoes, but a 20 mile ride home from the garage didn't loosen anything up.

Thanks!

JR
Old 09-02-2001, 11:47 AM
  #8  
Matt Gruber
Race Director
 
Matt Gruber's Avatar
 
Member Since: Oct 2000
Location: New Smyrna Beach, FL
Posts: 12,893
Received 75 Likes on 51 Posts

Default Re: Tight Rear-End: Car Does Not roll (drives61)

it took at least 500 miles for mine to wear in.
Old 09-02-2001, 12:22 PM
  #9  
dually4wd
Racer
 
dually4wd's Avatar
 
Member Since: Oct 2000
Location: Ft Walton Bch FL
Posts: 329
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Tight Rear-End: Car Does Not roll (JeffReed)

Are both sides dragging? You could narrow it down a little by removing the caliper to make sure it's not the culprit. Maybe it needs more miles like drives61 said. You could put it in neutral at about 25mph and lightly pull the ebrake to see if it instantly grabs or comes up a bit first.
Old 09-02-2001, 01:03 PM
  #10  
Steve Straus
Safety Car
 
Steve Straus's Avatar
 
Member Since: Sep 2000
Location: Charles Town WV
Posts: 4,676
Likes: 0
Received 1 Like on 1 Post

Default Re: Tight Rear-End: Car Does Not roll (JeffReed)

There is also an adjustment screw on the bottom of the shoes. You have to turn the rotor so that one of the large holes is at about 6 o'clock. You'll be able to turn the adjuster with a large screwdriver at that point.

The shop manual calls for adjusting the shoes all the way out until the shoes are touching the inside of the drum, then backing it off 8 clicks. You also should only need to pull the parking brake handle up 14 clicks to engage the brakes. If your shoes are adjusted out too far they could be dragging more than they should and causing the problem you are experiencing.
Old 09-02-2001, 10:30 PM
  #11  
JeffReed
Instructor
Thread Starter
 
JeffReed's Avatar
 
Member Since: Aug 2000
Location: Lewisberry PA
Posts: 163
Likes: 0
Received 1 Like on 1 Post

Default Re: Tight Rear-End: Car Does Not roll (Steve Straus)

I appreciate everyone's help. I will give those suggestions a shot this week.

Thanks!!

JR

Get notified of new replies

To Tight Rear-End: Car Does Not roll




Quick Reply: Tight Rear-End: Car Does Not roll



All times are GMT -4. The time now is 11:30 PM.