1WD rear drum stuck on

Front axle, springs, shock absorbers, wheels, bearings, calipers, drums...
Tuning: suspension, discs, alloys upgrade...
NO parts requests here, please use our V3M BUY & SELL corner
Post Reply
360beast
Posts: 873
Joined: 27 Dec 2013 08:40 pm

1WD rear drum stuck on

Post by 360beast » 14 Jul 2016 02:33 pm

My rear right wheel will not rotate at all, so car jacked up wheels off and run it in gear and it won't move at all. When I apply the brake it spins fine but only when the brake is on which I know is the diff doing its job properly which leads me to believe it is definitely something to do with the brakes.

I took the drum off which was tight, completely slackened the shoes off, filed the edge of the shoes off and tried again and no difference. I can spin the hub freely by hand with the drum off but with it on it won't move at all.

So, suggestions please.

I have also sanded down the shows a little and the drum and cleaned with meths.

Ride_on
Posts: 2262
Joined: 26 May 2009 05:34 pm
Location: Belfast, N. Ireland

Re: 1WD rear drum stuck on

Post by Ride_on » 15 Jul 2016 02:49 am

This has just suddenly happened? Not related to fitting new shoes or anythng?

Need to see pictures of the internals with the drum off.

The shoes are too far out, either the adjuster is stuck or the piston siezed.

I assume its a 360.
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7

360beast
Posts: 873
Joined: 27 Dec 2013 08:40 pm

Re: 1WD rear drum stuck on

Post by 360beast » 15 Jul 2016 09:49 am

I have a feeling it has been like it for a while as when I first took the drum off a few months ago it was like this but I never got around to checking it until yesterday.

I haven't fitted anything new yet, I have ordered a set of drums as they are above the maximum diameter anyway and a set of new shoes so if they are at fault it will be sorted with that.

I also have a set of new wheel cylinders that I got in an auction when I wanted a new rear view mirror so again if that is the fault it will be cured.

I have wound the shoes all the way in and there isn't any slack in the adjuster so I didn't think it was at fault but could it still be?

I will get a photo of it in a bit.

Yeah 1986 360

ralf850gle
Posts: 22
Joined: 27 Jan 2016 03:57 pm

Re: 1WD rear drum stuck on

Post by ralf850gle » 15 Jul 2016 01:01 pm

Hi,

may be your brake hoses have swelled up, so the liquid is pressed into the wheel cylinder when operating the break,
but flowing back is inhibited.
Can happen, when the hoses are quiet old...

Regards
Ralf

360beast
Posts: 873
Joined: 27 Dec 2013 08:40 pm

Re: 1WD rear drum stuck on

Post by 360beast » 15 Jul 2016 01:53 pm

ralf850gle wrote:Hi,

may be your brake hoses have swelled up, so the liquid is pressed into the wheel cylinder when operating the break,
but flowing back is inhibited.
Can happen, when the hoses are quiet old...

Regards
Ralf
I will take a look, I looked at the MOT history last week and the last MOT it had an advisory was the rear right brake hose starting to perish.

Ride_on
Posts: 2262
Joined: 26 May 2009 05:34 pm
Location: Belfast, N. Ireland

Re: 1WD rear drum stuck on

Post by Ride_on » 15 Jul 2016 07:07 pm

It should flow back when the pedal is not pressed. Also there is only 1 flexi for the back axle, so it would affect both drums at the same time.

If the adjuster has been wound back in it should not be a problem and the drum should fit on easily. The 360 adjuster rarely sticks, something could also be wrongly assembled.
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7

Ride_on
Posts: 2262
Joined: 26 May 2009 05:34 pm
Location: Belfast, N. Ireland

Re: 1WD rear drum stuck on

Post by Ride_on » 15 Jul 2016 07:15 pm

This is how to test the adjuster by levering the screw driver handle to the right against the hub and adjusting arm. You should see the ratchet rotating clearly.
Attachments
IMG_2930s.JPG
Drum adjuster testing
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7

360beast
Posts: 873
Joined: 27 Dec 2013 08:40 pm

Re: 1WD rear drum stuck on

Post by 360beast » 16 Jul 2016 03:13 pm

Just did the adjuster test and it works perfectly.

I will upload photos of the brakes now if photobucket stops being a PITA.
Last edited by 360beast on 16 Jul 2016 03:20 pm, edited 1 time in total.

360beast
Posts: 873
Joined: 27 Dec 2013 08:40 pm

Re: 1WD rear drum stuck on

Post by 360beast » 16 Jul 2016 03:19 pm

Image

Image

Image

Ride_on
Posts: 2262
Joined: 26 May 2009 05:34 pm
Location: Belfast, N. Ireland

Re: 1WD rear drum stuck on

Post by Ride_on » 17 Jul 2016 03:18 am

Nothing major I can see on the photos, looks right.

Thoughts;

-right shoe seems to be sitting a bit low, should be free to move anyway
-adjuster is not all the way home (after testing?)
-make sure its the right side adjuster, they are sided with opposite threads or ratch directions (testing should have eliminated this).
-Watch the little spud on the flat black plate (vertical spring attached to this) that engages with the adjuster fork and drives the ratchet, I had a problem with this because the fork was a little worn and it got stuck in the wrong place. The spud should stop it falling into the fork, but sometimes it doesn't. can't remember any more details, but it might have prevented the shoes pulling fully in, or it might not have adjusted properly.
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7

360beast
Posts: 873
Joined: 27 Dec 2013 08:40 pm

Re: 1WD rear drum stuck on

Post by 360beast » 17 Jul 2016 08:05 am

I think the shoe is sat low because a couple days ago when I wound them all the way in I gave it a tap to make sure it had adjusted.

Yeah adjuster I just tested a few revolutions.

As far as I can tell the fork is seated correctly.

I have fitted the drum again and managed to spin it by hand but it got stuck at a certain point so I used a pry bar to go past this point and it span again until it reached the same point.

Could the drum be oval?

Thanks for the help Ride_on really appreciate it.

Ride_on
Posts: 2262
Joined: 26 May 2009 05:34 pm
Location: Belfast, N. Ireland

Re: 1WD rear drum stuck on

Post by Ride_on » 17 Jul 2016 12:54 pm

Maybe, but it would be very unusual. Also thinking about the handbrake, how is the joiner/adjuster above the torque tube? Siezed?

I'm wondering why when you tested it off the ground did the right brake not work.

Also maybe just badly shaped shoes.

Are both pistons moving freely?
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7

User avatar
bogbasic
Posts: 1861
Joined: 21 Nov 2004 10:12 pm
Location: New Malden, Surrey.
Contact:

Re: 1WD rear drum stuck on

Post by bogbasic » 17 Jul 2016 01:16 pm

Sorry if already mentioned but I can't remember if the 360 is like the 340 and has a lever plate mechanism, part of which passes through the backplate. Its good at seizing-up at the pivot points, as I found out my Petrol Blue and on colin340's car, a la blog ;-0

The 360 is different isn't it but maybe the equivalent mechanism is dodgy. The only other very mysterious brake problem I had was caused by incorrect adjustment of the rod out of the servo into the master cylinder. The brakes jammed on when hot because the fluid wasn't recirculating and hot brake fluid not allowed to flow back into the reservoir is as good as the driver's right foot at stopping the car ;-0
1988 340 1.4 GL, 218k, 5 door (Grey Bess). Gone to CBA.
1991 340 1.7 GL, 64k, 5 door, petrol blue (Deep Blue).
1988 360 2.0 GLE, 140k, 5 door, ocean blue metallic (Blue Bess).
1989 340 1.7 GL, 108k, 3 door (Red Ness).
More info here!

360beast
Posts: 873
Joined: 27 Dec 2013 08:40 pm

Re: 1WD rear drum stuck on

Post by 360beast » 17 Jul 2016 08:11 pm

I will have to check on the pistons, need someone to press the brake for me.

The adjuster is fine, I adjusted it a while ago as the handbrake was a struggle to get 3 clicks and it was fully on at 1 click. So now it is 5 clicks and is fully on at 3.

There are score marks on the shoes and a it in the drum if that has anything to do with it.

Thanks Bog, I think the only lever mechanism in the 360 drum is for the self adjuster and it works fine.

The brake is stuck on full stop so it wouldn't be hot brake fluid.

Ride_on
Posts: 2262
Joined: 26 May 2009 05:34 pm
Location: Belfast, N. Ireland

Re: 1WD rear drum stuck on

Post by Ride_on » 18 Jul 2016 12:29 am

Just push the pistons in with your fingers or large grips. One side will probably push out if you push the other in.

If the shoes aren't in don't push them too much or the other side might pop out.
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7

Post Reply