View previous topic :: View next topic |
Author |
Message |
BigAl P4

Joined: 06 May 2003 Posts: 2995 Location: U.K Surrey
|
Posted: Wed Jul 16, 2008 9:27 pm Post subject: ns rear brake cylinder |
|
|
As i was having my exhaust done today, i noticed a drip coming from the wheel whilst the car was on the 2 poster. I guess mine has given up Managed to source a new one for £11.56 all in and will fit it tomorrow at a garage incase anything goes wrong. Place bets now on what will go wrong _________________ x2 33 16v
pictures http://www.alfa-pages.co.uk/viewtopic.php?t=5203 |
|
Back to top |
|
 |
Ben_nz Gold Cloverleaf

Joined: 30 Sep 2003 Posts: 575 Location: Auckland, New Zealand
|
Posted: Thu Jul 17, 2008 2:44 am Post subject: |
|
|
My bet is the brake shoes will have worn grooves into the drums and you won't be able to get the drums off. And when you give up and want to put everything back together, you'll realise you can't re-use the hub nuts because they're too damaged. And while you're under the car you'll notice rust in the seams in the rear wheel arch area.  _________________ "Now, all that is left to do ... is wait that something else brokens, to fix up again!" |
|
Back to top |
|
 |
eagle3 Alfa 33
Joined: 11 Nov 2007 Posts: 402 Location: France
|
Posted: Thu Jul 17, 2008 3:45 am Post subject: |
|
|
Ben_nz wrote: |
My bet is the brake shoes will have worn grooves into the drums and you won't be able to get the drums off. And when you give up and want to put everything back together, you'll realise you can't re-use the hub nuts because they're too damaged. And while you're under the car you'll notice rust in the seams in the rear wheel arch area.  |
Now now, it may not be that bad.
A replacement hub nut is good idea to start. Of course you could get the mechanic to change the 2 cylindres, all the shoes, machine the drums, change the wheel bearings and not have to worry about it again.  _________________ Alfa33 QO 1984
Alfa33 1.3i.e. 1994 |
|
Back to top |
|
 |
john 33_16v 16 Valve

Joined: 27 May 2005 Posts: 1406 Location: herts, uk
|
Posted: Thu Jul 17, 2008 8:17 am Post subject: |
|
|
Ben_nz wrote: |
you'll realise you can't re-use the hub nuts because they're too damaged. |
Then you'll go to main stealer who will put hubnuts on back-order for you, after chraging you about £25 for a packet of 10. - If this happens i'll take 4 off your hands!
John _________________ If it aint broke, fiddle with it until it is!
- - - - - - - - - - - - - -
93 33 16v Mirtle Met
08 Fiat Grande Punto Exotica Red
90 Yamaha FZR600 Genesis- Silky white/red/blue |
|
Back to top |
|
 |
BigAl P4

Joined: 06 May 2003 Posts: 2995 Location: U.K Surrey
|
Posted: Thu Jul 17, 2008 10:36 am Post subject: |
|
|
lol, im cracking up I checked brake fluid levels before leaving today and there was only a little in there. I topped up, checked the brakes and off I went.
I regularly clean up in the arches and there is no rust I have new shoes to put on for the mot which is due next month, as I know mine are low. I know about the lip, comes from being an alfa owner I guess and also sand that off every time I adjust the handbrake. I definitely need new castle nuts and will pick them up today, if they have in stock, not!!! I was advised to change the other cylinder as well, as it will probably give up soon, I will see how it is in a pre mot. Just got back, job done, no probs, what a surprise. _________________ x2 33 16v
pictures http://www.alfa-pages.co.uk/viewtopic.php?t=5203 |
|
Back to top |
|
 |
BigAl P4

Joined: 06 May 2003 Posts: 2995 Location: U.K Surrey
|
|
Back to top |
|
 |
Ben_nz Gold Cloverleaf

Joined: 30 Sep 2003 Posts: 575 Location: Auckland, New Zealand
|
Posted: Sat Jul 19, 2008 7:14 am Post subject: |
|
|
BigAl wrote: |
Castle nuts are no longer available from alfa!!! |
Alfa sux.
My mechanic told me the nuts from some Ford Laser (I think) will fit. They're easy to come by. The thread's the same although the nut is actually smaller, and I've been using these since just after I bought a socket large enough to fit the factory Alfa nuts.
I just take an old one of these to Repco to make sure I'm getting the right part, and buy a bunch of them for little money. _________________ "Now, all that is left to do ... is wait that something else brokens, to fix up again!" |
|
Back to top |
|
 |
BigAl P4

Joined: 06 May 2003 Posts: 2995 Location: U.K Surrey
|
Posted: Sat Jul 19, 2008 8:20 am Post subject: |
|
|
thats good to know, there is a nut and bolt shop near me, i might pop in there to see if they stock such things aswell. _________________ x2 33 16v
pictures http://www.alfa-pages.co.uk/viewtopic.php?t=5203 |
|
Back to top |
|
 |
Ben_nz Gold Cloverleaf

Joined: 30 Sep 2003 Posts: 575 Location: Auckland, New Zealand
|
Posted: Tue Jul 22, 2008 11:06 am Post subject: |
|
|
Guess what, after me prophesying doom when you attempted to disassemble a rear drum, my grey 1.5TI failed its warrant inspection today because the rear brakes were out of balance.
The testing station has rollers that test the braking of each wheel individually, and they showed the left rear was 160 Magic Brake Units, but the right rear was 100MBU. Using the handbrake, both rear brakes were even.
I went out brake testing afterward in the rain and initially I do believe I noticed the left rear locking up first - the back of the car would slide out to the left / car wanted to rotate to the right.
Because the handbrake strength was the same for both sides, would this indicate that the brake pads aren't contaminated with brake fluid?
Could I still have a leaking brake cylinder on the right rear wheel?
Will my brake bias valve be playing up?
Or do I just need to Italian Tuneup the brakes and sit the test again with lots of weight in the boot? _________________ "Now, all that is left to do ... is wait that something else brokens, to fix up again!" |
|
Back to top |
|
 |
BigAl P4

Joined: 06 May 2003 Posts: 2995 Location: U.K Surrey
|
Posted: Tue Jul 22, 2008 3:51 pm Post subject: |
|
|
as far as i know the hand brake is done by the cable, which pushes one side of the shoes out to meet with the drum. The foot brake operates the cylinder pushing out both shoes. It could be that one of the pistons in the cylinder, on the side that is low on performance, is sticking. Are you loosing any fluid?
I need to check my brakes for equality too. _________________ x2 33 16v
pictures http://www.alfa-pages.co.uk/viewtopic.php?t=5203 |
|
Back to top |
|
 |
BigAl P4

Joined: 06 May 2003 Posts: 2995 Location: U.K Surrey
|
Posted: Tue Jul 22, 2008 6:50 pm Post subject: |
|
|
Forgot to say that i popped into the nut and bolt shop, but they dont do them. When i do my shoes i will swap the castle nuts around, advice from an alfa garage i got the nuts from.
I just looked at the manual and found the correct way to do nut.
Tighten to 25 - 29Nm while rotating drum 4 or 5 turns in each direction, partially slacken nut and strike stub shaft with a mallet, then hand tighten to specified torque.
Then goes on about checking end float, which i dont have and peening over nut when done. _________________ x2 33 16v
pictures http://www.alfa-pages.co.uk/viewtopic.php?t=5203 |
|
Back to top |
|
 |
lee16v 16 Valve

Joined: 29 Jun 2005 Posts: 1429 Location: Devon, UK
|
Posted: Tue Jul 22, 2008 8:34 pm Post subject: |
|
|
I got hub nuts from Mangoletsi not that long ago and they were about £2-3 each. |
|
Back to top |
|
 |
Ben_nz Gold Cloverleaf

Joined: 30 Sep 2003 Posts: 575 Location: Auckland, New Zealand
|
Posted: Wed Jul 23, 2008 11:29 pm Post subject: |
|
|
BigAl wrote: |
It could be that one of the pistons in the cylinder, on the side that is low on performance, is sticking. Are you loosing any fluid? |
I don't think I'm losing fluid. I started the motor this morning and repeatedly tried to push the brake pedal through the floor. The pedal didn't keep sinking and the level of the fluid didn't drop, although maybe those were just the wrong conditions to allow the cylinder to leak.
If I had angel and devil characters on my shoulders advising me, one would be telling me to pay someone to check everything properly and bleed the brakes, and the other would be encouraging me to take my warrant-less car out for an illegal brake-abusing joyride and try to fluke my way through the warrant retest..  _________________ "Now, all that is left to do ... is wait that something else brokens, to fix up again!" |
|
Back to top |
|
 |
BigAl P4

Joined: 06 May 2003 Posts: 2995 Location: U.K Surrey
|
Posted: Thu Jul 24, 2008 9:49 am Post subject: |
|
|
I would take the drum off, get someone to gently push the brake pedal and see if one of the pistons in the cylinder is stuck. I would also check to see that the brake shoe hasnt jammed. Maybe you could stop the good side from moving and see if the stuck side would work free. If the cylinder is at fault, remember that they are sided. _________________ x2 33 16v
pictures http://www.alfa-pages.co.uk/viewtopic.php?t=5203 |
|
Back to top |
|
 |
|