Rover 16 Girling brakes

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Phil - Nottingham
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Joined: Thu Oct 09, 2008 10:45 am
Location: Nottingham

Rover 16 Girling brakes

Post by Phil - Nottingham » Sat Mar 21, 2009 5:54 pm

Took my P2 for its MOT the other day and it failed on brake imbalance. They now have one of those hitec rolling roads that weighs axle loads (708kg front and 772kg rear) and whilst overall eficiency on the front was 84% the n/s brake was 319kgf and o/s 273kgf which is FAIL :x

The rear brakes were 107kgf for n/s and 304kgf for o/s which actually balanced up overall which is probably why the brakes seemed OK. The rear brakes actually PASSED as to balance and effort.

The handbrake also failed on poor effort (10%) with only 77&72 Kgf which is strange as the handbarke does use the same system so should have been as good if not identical as the service brake readings - the tester may not have pulled hard enough even though the lever is quite long and had loads of travel left :roll:

On removing the front drums although dusty (asbestos!) I noticed th n/s front leading shoe was just down to the rivets. The rest of the linings seemed hardly worn which at only just over 4000 miles they should not be. I cleaned the drums and checked everything was free and replaced the the one worn lining with an odd partly used one I had which although a different colour was good.

The rear axle seal was found to have leaked (again) and soaked the linings so I replaced the seal and put some more dry linings on that side only.

All the drums are good and fre from scores and tramlines too

All the brakes were adjusted and road testing proved them really good and balanced with hardly any free travel.

On the MOT restest all wheels were equal - the front were approx 320Kgf and the rears including handbrake 230. The tester thought they were excellent and could not believe the transformation

What I found strange is why one front shoe should wear so quickly as the compensators should prevent unequal pull.

I also found the original hanbrake test failure odd although clearly the oil soaked linings made up for the imbalance and low effort which did not fully show up on the service brake reading for the rear.

Have any of you had problems with P2 brakes as I think these are usually excellent and far superior and less trouble than hydraulics :?
P2/P4/P5/P5B/LR's - EXJ 8**/2**8MY & others

GOY189
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Joined: Sun Oct 19, 2008 5:08 pm

Re: Rover 16 Girling brakes

Post by GOY189 » Sat Mar 21, 2009 8:23 pm

Philip,

I should check that the Front brake expander housing has some free movement. The securing nuts for the housing should nip the spring washers, rather than be torqued down. so the expander housing can float in the slots. It would also be worth while checking that the expanders move (and can be returned) freely. The Garage I use for the MOT still has and uses a Tapley meter for the Kitcher's annual test.

hope this helps

Mike Maher

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Phil - Nottingham
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Joined: Thu Oct 09, 2008 10:45 am
Location: Nottingham

Re: Rover 16 Girling brakes

Post by Phil - Nottingham » Sat Mar 21, 2009 10:44 pm

Thanks - have responded in full on the old forum - I will check the front expander which I do not recall checking
P2/P4/P5/P5B/LR's - EXJ 8**/2**8MY & others

rover10man
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Joined: Tue Oct 07, 2008 5:48 pm

Re: Rover 16 Girling brakes

Post by rover10man » Sun Apr 05, 2009 7:39 pm

I think the spring washers should be double coil ones. They are on mine.

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Phil - Nottingham
Posts: 357
Joined: Thu Oct 09, 2008 10:45 am
Location: Nottingham

Re: Rover 16 Girling brakes

Post by Phil - Nottingham » Mon Apr 06, 2009 10:47 pm

They are - I fitted new ones several years ago (LR items!) They were actually all still floating - I put it down to adjustment as the brakes are still excellent now even though the rear seal is leaking again :x
P2/P4/P5/P5B/LR's - EXJ 8**/2**8MY & others

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