why disk brakes in the rear on a 924? Obin?

FRANKYDOOM · 09-29-2001, 02:38 AM

My 924 / 82 has got disk brakes at the rear - they cant be stock ??? and the only purpose is to act as the handbrake --- but there is no way i can adjust my handbrake as there is no space left on the lever ???? im due for my MOT soon and need to get it fixed. the PO does not know and the car is 19 years old - anybody out there who can help me ?????

i was thinking of replacing the handbrake cable ?? but it seems a lotta work.

i can post pics if needed

FRankydoom/London/UK

IceShark · 09-29-2001, 11:25 AM

That is a pretty confused post.

Most 924s had drum brakes in the rear. And 4 lug wheels. The tip off for rear disk brakes is 5 lug wheels.

Anyway, those drum brakes are supposed to work as regular brakes and have hydraulic lines that run down to the actuators. So, I guess what you are saying is that your modified car had the rear brakes taken out for some reason. Probably under the logic that the rear brakes only do 15% of the stopping under hard conditions due to weight shift and such to the front.

You have an expensive job to pass inspection and rather than making the drums work you might want to think about putting in disks. May be beyond your skill level though and hiring that out would be damn expensive.

Britwrench · 09-29-2001, 02:12 PM

Franky,

If your 924 is a UK (rhd)and not a Turbo model then would have had drum rear brakes.
I believe only th USA was offered front and rear discs as an option.

If it has disc brakes then probably someone fitted a 924T/944 set up. Either way, check in the Haynes manual which will show you the stock 924drum brake (4-bolt wheels) or 924Turbo/944 disc brake (5-bolt wheel). The usual reason for the handbrake not to work is seized cables. also the handbrake shoes may have rusted enough so the linings fall off. Go through the system carefully and you will be able to sort it out.

kaffine krazed · 09-29-2001, 07:54 PM

If your car has 5 lug wheels then the brakes are likely stock. They will have a drum built into the rear disc this is what the parking brake uses. They can be adjusted there will be a plug on the backing plate there will be a star wheel in there that you turn with a screw driver to adjust you parking brake. You should pull the rotors off and inspect the parking brake assembly to make sure there are no other problems before trying to adjust them. Hope this helps.

1.2gees · 1.2gees's Garage

Or you could buy a hydrolic lock (should be less than $50 us, around 25-30), which'll let you lock the wheels with hydrolic pressure, no need for extra handbrake work, however you'd have to run the lines to the cabin to do this...
Ahmet

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My page over1g@hotmail.com
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Britwrench · 09-29-2001, 10:05 PM

Ahmet's idea is good but will not pass the British MOT inpsection. If you give us more information we can help you sort this.

FRANKYDOOM · 09-30-2001, 09:19 AM

Thanks guys -

I will get a few pics and yes they are 5 lugs. To be honest i did looked at the disk and there seems no way that there are any drums or brake pads for the handbrake they look the same as in the front.

Thanks and i wil keep yaaa posted. Britwench were in the uk are ???

Obin Robinson · 09-30-2001, 03:07 PM

Quote:

Originally posted by FRANKYDOOM:
Thanks guys -

I will get a few pics and yes they are 5 lugs. To be honest i did looked at the disk and there seems no way that there are any drums or brake pads for the handbrake they look the same as in the front.

Thanks and i wil keep yaaa posted. Britwench were in the uk are ???

sorry, i was out for a while.

my 924 is a model 331 with the M-471 Sport II option. it basically uses a modofication of the 928 braking system, along with a BEEFY suspension. they are NOT a modification. also, the M471 is NOT just the 944 brakes. a long time ago, i pulled my 924 and 944 next to each other and i took a host of photos of the rear brakes, suspension, etc. there were clear differences between the two.

as far as the handbrake goes, check the little brake shoes inside the rear disc's "drum" section.

good luck!

obin

Britwrench · 10-01-2001, 06:43 AM

Obin is more than likely right for USA spec cars, but I have never seen a European spec 924 with 5-bolt wheels unless it was a Turbo.
(Obviously,Europeans didn't deserve it!)

You can adjust the hand brake easily, check the 924 Turbo section of the Haynes manual.
You have to take the wheel off to adjust.

I am not in the UK, presently in Seattle.

Britwrench · 10-01-2001, 08:07 AM

Obin,
Just checked the parts fische for 924 with M471, your car can't be stock as M471 is 924 Turbo and 944 brake system, which are same part numbers for discs, rear trailing arms and front suspension knuckles. The calipers are a different part number but look the same.

Obin Robinson · 10-01-2001, 09:44 AM

Quote:

Originally posted by Britwrench:
Obin,
Just checked the parts fische for 924 with M471, your car can't be stock as M471 is 924 Turbo and 944 brake system, which are same part numbers for discs, rear trailing arms and front suspension knuckles. The calipers are a different part number but look the same.

as far as i recall checking, the master cylinder is different than the "regular" 924, and different from the 944. the master cylinder on my car is from the 928. the M471 setup also included some nice swaybars, but when people modify their cars and add rear discs, they have to do a modification for the different sway bars.

some day i'll dig up those photos i took of the rear end of my 944 and 924, or i'll just take new photos

obin