Rod1883
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Posts posted by Rod1883
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Well the Master cylinder was the issue - or at least replacing it today seems to have solved the problem.
Thanks for all the help and advice. -
Thanks again everyone. Since posting earlier I've had the front wheels off to check the pads and discs. The discs look OK - the pads are a little low and probably are due to be changed reasonably soon (if I thought about it more thoroughly earlier I should have ordered new pads with the master).
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40 minutes ago, MilesA said:
Late from me with birthday wishes too Waldi. See you at Malvern?
Miles
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Thanks again.
No loss of fluid. I've not checked for fluid in the servo. Someone else suggested a failing seal in the Master Cylinder. I have ordered a new Master from Paddock's - hopefully due tomorrow.
We're supposed to be off to Devon and Cornwall with the local MG club
on Saturday in the car as we decided that the weather wasn't looking good enough for the little old Midget. Not sure whether to carry the new Master with us in case it gets worse or try to change it on Friday before we go. Do you know if it can be done without removing the Servo as on a manual Stag I understand that getting the servo and master out as an assembly (as per the ROM) is difficult due to the Clutch master cylinder position.
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Both Stuart. It's probably more noticeable with the engine running and when on the road, but the pedal does drift further down when pressed gently with the engine off, and responds more firmly when pressed harder too.
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As per the title - if I press the brake pedal gently it feels soft and travels a long way, for example in the situation of braking very gently coming to a junction.
If I press the pedal hard, the pedal is good and firm and doesn't drift downwards. I've bled the brakes through with new fluid in case it was an effect of old fluid, but it hasn't improved things in this respect.
Can anyone comment on what the issue might be?
Thanks -
Yes indeed, I was about to post and saw that Bob, the other Birthday boy today, had beaten me to it.
Happy Birthday Waldi, have a great day
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Happy Birthday Bob - hope you're having a good day
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Won't be joining the rest of GWTR at Brooklands but will be going along to one of the local multi-marque runs from the Trundle above Goodwood to a pub for lunch, although we will forego lunch as we have another event this afternoon to get back for. Happy Driving it today everyone
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We'll be there, hoping the car parking fields aren't too muddy!
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Thanks Peter, pm sent
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Thanks for the info Peter, glad I asked about the length. Did you say you had a nicely shortened spare........?
Rod
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Peter - how long is/are the 1/2"(?) UNF set screws that you used/sourced? I understand that there isn't very much depth beyond the wall of the block before the cylinder liner is impacted.
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Thanks for the comments.
I've managed to spend a little bit of time looking the set up today. I think my issue is that the push rods on the Master Cylinder are not set up correctly with the required small amount of free play, and from a bit of research on Midget and Sprite forums it seems that this may be stopping the pressure in the braking circuit being released when the pedal is released as quickly as it should.
It's been like this for 6 years but perhaps my recent brake adjustment activity has simply exacerbated the situation and made the hard pedal more noticeable. I've tried to slacken things by adjusting the pedal stop but I think I need to shorten the push rod (and the clutch one too) whilst keeping the pedal heights correct via the stops. I wonder why the clutch doesn't have the same pedal issue if that clearance is also required for fluid return.
My next steps are to work out how to get the push rods out so they can be adjusted - probably I need to reduce the length or remove the pedal stops altogether to do this. I will also bleed the brakes and check that the rear cylinders are free to slide as suggested above, and recheck the brake adjustment all round.
Peter - The Master is definitely the 7/8" variant and it has only ever had 'normal' brake fluid although the system did have silicone fluid in it before it was thoroughly flushed and bled when the new master and all wheel cylinders were fitted.
During my research I've established that the clutch and brake bores, although the same size, have different components. The Brake side has a valve assembly in it but I'm not sure why, or what it does. Is it do do with the fluid returning to the master after the pedal is released? If so, why doesn't the clutch bore have one? Can anyone explain as I like to understand if I can.
Any other thoughts are welcome as always.
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I would try nipping them up before dismantling and using different washers/sealant etc. I've found that the connections to the carbs need a second nip after use. I wouldn't run the car on milk though......
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Willow Tit or Marsh Tit I think, both red listed
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Southern Carbs in Crawley are very knowledgeable and hold a good stock of parts, imho.
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It's disgraceful isn't it. Did you hand over the key at any point as in the video John? I suppose the answer is to not have the key anywhere near the car or the individuals whilst they are looking. The car is probably in a container and on its way to Eastern Europe by now.
Edit - I would add thanks for posting and thanks Deggers for the video too - forewarned is forearmed as they say
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..not on the TR (although that is quite firm and needs a fair weight on the pedal with the old style twin master cylinder) but on the Midget. This is an early car (Oct '61) and has a similar twin master cylinder to the early TR's. It is drums all round and after adjusting the brakes the pedal is really firm (it was quite firm before) and takes quite a press to brake hard. The master cylinder was replaced about 6 years ago and the brakes have always required some pressure but they just seem much firmer now.
The rear wheel cylinders were replaced at a similar time to the master, and the front cylinders and hoses in the last three or four years.
I'm wondering if the Master cylinder has developed an issue.
My first steps when I next get the car (it lives in a lock up ~5 miles from home) is to bleed the brakes as it is due to be done, but I'm wondering if anyone has any other thoughts on what the issue might be.
Thanks
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We didn't go into the museum on this visit, they had given us permission to park up for a short stop and look at the outside exhibits on this occasion. We've been into the museum before - it's a great museum, I've seen the simulator but not been in, its always been popular on previous visits, I believe that you have to book a slot to experience it.
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Sounds a good day.
We met up with others from the MGOC at Oving for a coffee and then went on a pleasant run to Tangmere Aviation Museum where the South Hants Vehicle Preservation Society were visiting on their run - some very nice cars including a TR4. We then went on to Boxgrove Priory and afterwards the route went through Eartham, Slindon and on to Bury where we left the route (as we had some other things to do this afternoon) and the rest of the group went on to Bignor, Sutton, Duncton and then East Dean where a picnic stop was planned, and then to West Dean Gardens for tea
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It's a lovely morning for your run Richard, hope it goes well. We're going to get the Midget out and meet up with the Chichester MGOC group at Oving for Coffee and a run afterwards
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Yes Richard, we had all four season today just a little way from you here in West Sussex. Lovely sun this morning, a couple of light showers around lunchtime, then sunshine again when I decided to pop to our local Churchyard to do a bit of green bin filling only to experience heavy rain/sleet/hailstones. All good stuff - what is the car meet you are at tomorrow? We have the choice of a Sadcase Pagham breakfast run or the local MG club coffee meet at Oving and then run to a pub for lunch tomorrow.
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A dig around t'internet comes up with this link to a list on the TR Register France webpages. On there it says that Pearl White for the era is ICI code 2857.
My car was originally Pearl White and when it was restored ~11 years ago I considered putting it back to original colour from the orangey red it was at the time, but as you can see, I didn't.
TR action
in Social Scene
Posted
Hello Richard - I would be happy to take the Goodwood TR Group newsletters. We are approaching our 30th anniversary of the group and, although it's likely I also have those newsletters, it would be good to save them. I'm not sure when, where I could take them - but perhaps we could arrange something at a mutually attended event, or other convenient time/place.
Rod