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Derek
V4 Guru

United Kingdom
1856 Posts

Posted - 28 Apr 2019 :  23:38:33 Show Profile Reply with Quote
I think I would agree with Chris. Scroll down to the end of this thread.http://www.saab-v4.co.uk/speedball/topic.asp?topic_id=43789
Shoe ends should be flat or just with a bit of a curve and rest squarely in the brake piston notches. The curve helps to align the shoes. I think the ones you have had longer piston ends that had a longer deeper notch, rounded off, that straddled the shoe.
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andydeans3
V4 Guru

United Kingdom
1175 Posts

Posted - 29 Apr 2019 :  08:26:11 Show Profile Reply with Quote
.... Sorry double post!

Edited by - andydeans3 on 29 Apr 2019 08:29:50
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andydeans3
V4 Guru

United Kingdom
1175 Posts

Posted - 29 Apr 2019 :  08:29:16 Show Profile Reply with Quote
Derek/Chris

Still not quite getting what you mean, but I should say that the shoes that you see in the photo, are the ones that WERE fitted, I have fitted new ones, though, since I can't see the detail that you are referring to, I'm not sure if the new ones are different. I certainly got them from Malbrad, and he lists them as for V4 or 2 stroke....

On a slight tangent......
In that thread from Rannsachair, with the photo of the brake shoes, which show the right side, I think the shoes are on the wrong way round. If you refer to the diagram from 72Sonnett below (marked "rechts" ie right), the back -left- shoe, that has the handbrake arm connected to it, (that has the cable on it), should be on the shoe that has brake lining all the way to the top.
It's clearly fitted to the shoe whose brake lining does not go right to the top.
Whether it makes any difference which way the shoes are fitted, I am not sure.....


1978 LHD SAAB 96
1978 MGB Roadster
2008 LHD "Classic" Renault Twingo
1991 Nissan Figaro

1978 LHD SAAB 96
1978 MGB Roadster
2008 LHD "Classic" Renault Twingo
1991 Nissan Figaro

Edited by - andydeans3 on 29 Apr 2019 09:13:54
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chris steeden
V4 Beginner

United Kingdom
90 Posts

Posted - 29 Apr 2019 :  09:51:35 Show Profile Reply with Quote
Hi Andy, Sorry about my hasty drawing but I refer to the image circled in green. I have drawn the brake shoe pulled away
from the piston in both cases to highlight the difference. I would have thought the lower drawing should apply to your vehicle.



If I've got it wrong then sorry. You are correct about the shoes being on the wrong way around
on the photo/depiction imo.
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andydeans3
V4 Guru

United Kingdom
1175 Posts

Posted - 29 Apr 2019 :  12:48:22 Show Profile Reply with Quote
Chris
Ah, now I understand what you mean.
Neither the shoes that came out, (that you can see in the photo), or the new shoes that went in have a cut out like that.
I think on the photo, there may be some grease there, that gives that impression.
Just had the car re-tested, and the hand brake still is not up to scratch. That's with new actuating arms and new shoes. Because I can't get the old handbrake cable out of the slot on the back axle, I simply got the old cables moving, oiled and greased them, till they were slipping nicely.
Perhaps they are stretched now beyond their elastic limit. I don't know.
I am now going to get the garage to fit the new cables, since they have an induction tool to heat the slot, and get the old cable out.
I'm also going on holiday to the Western isles day after tomorrow, (in a different car), and so don't have any more time to faff with it.!!
I will report back.

Andy

1978 LHD SAAB 96
1978 MGB Roadster
2008 LHD "Classic" Renault Twingo
1991 Nissan Figaro
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72sonett3
V4 Fanatic

Spain
246 Posts

Posted - 30 Apr 2019 :  05:31:11 Show Profile Reply with Quote
The lower spring, the side with the extension that presses down on the hand brake lever, should go through the round hole, not the rectangular slot. The difference is minimal but maybe just enough...
See the workshop pic



(this is the right side, left side is mirrored)

--
'72 97
'77 96L conv.
'79 96GL (LPG)
'83 900i (LPG)
'95 900SE conv.
'99 9-3T
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andydeans3
V4 Guru

United Kingdom
1175 Posts

Posted - 30 Apr 2019 :  10:14:19 Show Profile Reply with Quote
Martin

I see that it is wrong in the photo, but I'm pretty sure I re-assembled it, with the new shoes, and springs and levers, as per the diagram.
I could lock the hubs at 3 clicks. I put bolts in and used a breaker bar to try and turn the hubs, and they were solid.
However when I tried applying the handbrake when rolling along at a very low speed, it was obvious that it was not really stopping the car, sort of slowing it down at best. I'm therefore not surprised that it still could not pass the test.

Anyway....

I'm away on holiday tomorrow to the Western Isles, so I've just left it with the garage, given them the new handbrake cables and asked them to get on with it.
I got the actual cables moving nicely with oil and grease.], but I was not able to fit my new cables, due to the old outer sheaths being hopelessly corroded into the stops on the axle. I have no heat source, the garage has an induction heater!!!

I need the car for Swedish day weekend 11th/12th of May!

1978 LHD SAAB 96
1978 MGB Roadster
2008 LHD "Classic" Renault Twingo
1991 Nissan Figaro
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OWEN
V4 Fanatic

United Kingdom
285 Posts

Posted - 01 May 2019 :  21:41:57 Show Profile Reply with Quote
I finally got the rear brakes finished today. New cylinders and new rigid pipes connected to them. New handbrake levers from Malbrad. I couldn't justify paying 15 each for longer SS wedges so I got some cheap MG mild steel wedges and got my welder to add 2mm to them. When I measured the diameter of one drum it was 213mm so I used the longer wedges for that one. The other was 205 so I left the original SS wedges in that. Both adjusted up fine so I've finally got working brakes and handbrake.

I still can't believe the 213mm dimension so I'll double check and replace with a good secondhand drum if necessary (and replace the long mild steel wedges at the same time).

Malbrads' replacement handbrake levers seem thicker than the originals and don't give you any play when reassembling. I found the best method was to get the lower spring in place, get the shoes located in the piston and handbrake lever and then insert the top spring and locate the shoes in the top adjuster.

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andydeans3
V4 Guru

United Kingdom
1175 Posts

Posted - 12 May 2019 :  23:43:32 Show Profile Reply with Quote
Owen.
Malbrad has new drums but ooooo, 234 each.....
Phew that was sore, just to say the number, and I don't even want to think of the price for 2.

I got my car back from the garage with a nice shiny new MOT, and a handbrake that seriously stops the car.
The new cables fixed the problem.
New levers, and shoes had been fitted previously.

The chap at the garage said I will need either new drums, or extended adjuster wedges at some time in the future.

Andy

1978 LHD SAAB 96
1978 MGB Roadster
2008 LHD "Classic" Renault Twingo
1991 Nissan Figaro

Edited by - andydeans3 on 12 May 2019 23:44:59
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