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PostPosted:Tue Mar 22, 2016 7:25 pm 
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Big Block

Joined:Tue Oct 28, 2014 8:45 am
Posts:287
Car Details:1981 Camaro Z28
Location:Essex
Quote:
I would suggest looking on YouTube for videos on drum brake removal, they can show a lot better/easier than describing anything on here.

I am by no means an expert on the mechanical side of things, I just tinker now and then with old cars, but getting to look a the rear drums should be pretty simple.

Remove the rear wheel and the rear drum cover should be removable, though you might need to tap it 'gently' with a hammer to loosen it - (edit - read the above posts, the hammer may not be required then!). Once you can see inside you can check the drum, the pads and springs etc. I also only just bought my Camaro and found that one of the springs in the driver side drum was broken, meaning it wasn't disengaging, you might find something similar.

The parking break cable you can check it is freely moving form under the car, I am not sure but I would guess there must be some adjustment available at one end or the other, otherwise I don't think its a big task to replace it.

I have to say I already bought a Haynes manual for my Camaro (out of habit), but the source of info readily available on YouTube renders it almost pointless!
I bought a Haynes Manual and a Chilton one too, both of em' rubbish to be fair. Pretty useless to someone who is familiar with motor mechanics and not enough specific detail (pictures, step by step instructions, exploded diagrams etc.) to someone who isn't.

http://www.amazon.com/CHEVROLET-CAMARO- ... ice+manual I picked this up today from my importer, hopefully it'll be an improvement! :)


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Re: Rear drum brake issue

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PostPosted:Tue Mar 22, 2016 8:51 pm 
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Big Block
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Joined:Sun Jan 13, 2013 7:00 am
Posts:1158
Car Details:1986 Camaro, bought into Spain by me in 1993.
305 replaced by a 355, 750 Demon carb, RPM AirGap intake, Brodix heads, Hedman Hedders, 3" Flowmaster exhaust.
Wheels are Summit aluminium 5 spokes, tyres are 245 rear 225 front BF Goodrich.
B/M transmission, battery relocated to the rear, GoodMark 4" cowl steel hood.
Location:Spain East Coast
Look at this and we´ll all read along together..... :lol:

http://transamcountry.com/community/ind ... ic=57011.0

It´s all there in BIG pictures.


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PostPosted:Wed Mar 23, 2016 8:39 pm 
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Small Block

Joined:Sun Mar 20, 2016 9:56 am
Posts:49
Car Details:1977 305 Camaro
Quote:
Glad this thread has come up, it'll be M.O.T. time soon :roll: . I think mine might need attention also. It's definitely more than three clicks on the parking brake pedal to properly engage the brake. Although, it does hold the car in place when applied. What could be a problem is the hydraulic pressure to the brake cylinders, I'm not sure if there's enough.
Thanks....I think the vacuum is faulty as I notice varying pressure through the footbrake at different speeds...although I wouldn't think that affects park brake operation...and I'm assuming the proportion of service braking that the rear does is in the region of 30%?.


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PostPosted:Thu Mar 24, 2016 8:07 pm 
Offline
Big Block

Joined:Tue Oct 28, 2014 8:45 am
Posts:287
Car Details:1981 Camaro Z28
Location:Essex
Quote:
Look at this and we´ll all read along together..... :lol:

http://transamcountry.com/community/ind ... ic=57011.0

It´s all there in BIG pictures.
That's a super informative run down. Thanks for posting the link :)


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PostPosted:Thu Mar 24, 2016 8:10 pm 
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Big Block

Joined:Tue Oct 28, 2014 8:45 am
Posts:287
Car Details:1981 Camaro Z28
Location:Essex
Quote:
Quote:
Glad this thread has come up, it'll be M.O.T. time soon :roll: . I think mine might need attention also. It's definitely more than three clicks on the parking brake pedal to properly engage the brake. Although, it does hold the car in place when applied. What could be a problem is the hydraulic pressure to the brake cylinders, I'm not sure if there's enough.
Thanks....I think the vacuum is faulty as I notice varying pressure through the footbrake at different speeds...although I wouldn't think that affects park brake operation...and I'm assuming the proportion of service braking that the rear does is in the region of 30%?.
I wouldn't know about what percentage of pressure if fed to the rear brakes, though as you mention it probably is less than 50%. I can't say I've noticed a difference in pedal pressure at different speeds but a vacuum reserve canister plumbed into the system may help.


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PostPosted:Thu Mar 24, 2016 8:19 pm 
Offline
Small Block

Joined:Sun Mar 20, 2016 9:56 am
Posts:49
Car Details:1977 305 Camaro
Thanks....I had it out for a run earlier and the brakes work evenly...just a softer feel than modern cars which is to be expected...I've had to top up the smaller chamber in the reservoir though...it looks as if fluid is being forced out of the reservoir cover plate as the sides of it get wet ...so I'm thinking maybe needing bled?...


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PostPosted:Thu Mar 24, 2016 8:29 pm 
Offline
Big Block

Joined:Thu Jul 21, 2011 2:16 pm
Posts:815
Car Details:1980 2nd Gen, 6.0 iron block LS, 4.11 12 bolt axle, Brute Strength Posi, Lowered 2", sub frame connectors, G-braces, Carbon hood and front bumper cover
Location:Norfolk
Could be a dodgy seal on the lid to be honest. Does the clip snap over really tight, you should have to lever it on/off with a screwdriver.

If it's easy to pop on and off, take the clip off and bend it down a little in the middle and see if that stops it leaking.

Bleeding the brakes won't make any difference to it overflowing.

_________________
My '80 progress thread - hugger orange! Now with LQ9 power - forged pistons, LS2 rods, 236/242, .621/.612, flowed and milled 317 heads. MS3X

4L80e, 12 bolt, 4.11, Moroso brute strength posi, steel shafts.

Subframe connectors, g-braces, solid body bushes, carbon hood and front bumper, custom door cards, Autometer gauges.


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PostPosted:Thu Mar 24, 2016 8:35 pm 
Offline
Small Block

Joined:Sun Mar 20, 2016 9:56 am
Posts:49
Car Details:1977 305 Camaro
Thanks...I can pull it off by hand so maybe its a bit sloppy....the master cylinder looks the age of the car so was thinking maybe the seal was perished but its intact....had thought maybe if there was air in the system that it might create back pressure to blow off fluid...guess I was wrong so thanks for putting me right.


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PostPosted:Thu Mar 24, 2016 8:43 pm 
Offline
Big Block

Joined:Thu Jul 21, 2011 2:16 pm
Posts:815
Car Details:1980 2nd Gen, 6.0 iron block LS, 4.11 12 bolt axle, Brute Strength Posi, Lowered 2", sub frame connectors, G-braces, Carbon hood and front bumper cover
Location:Norfolk
New clips and covers are cheap enough as well, about £10 if it won't seal up.

_________________
My '80 progress thread - hugger orange! Now with LQ9 power - forged pistons, LS2 rods, 236/242, .621/.612, flowed and milled 317 heads. MS3X

4L80e, 12 bolt, 4.11, Moroso brute strength posi, steel shafts.

Subframe connectors, g-braces, solid body bushes, carbon hood and front bumper, custom door cards, Autometer gauges.


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