1964 Cloud Brake Fluid - Rolls-Royce and Bentley Forums
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post #1 of 27 (permalink) Old 11-12-2019, 02:15 AM Thread Starter
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1964 Cloud Brake Fluid

Hi,


OK I have never even taken a wheel nut off a cloud just done various electrical work. So no mechanical experience on this model



My friend has just phoned saying he has no brake fluid in his reservoir. No signs off fluid loss on his garage floor either so I assume must have lost it when driving.


I am going to look it over at the weekend but thought I better go armed with some brake fluid.


I just checked and it says Girling/Castrol crimson as hard to get as RR363. However reading up it says this also was changed from crimson to RR363 later.


Question is does a cloud really need RR363 as the Shadow does, or will DOT3/4 be OK as I did not think these cars had the brake pumps and levelling system. No need to put expensive RR363 in if not needed surely.



Advice/help/info please greatly appreciated



Steve
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post #2 of 27 (permalink) Old 11-12-2019, 08:42 AM
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No need for 363. Good Ole DOT 4.

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post #3 of 27 (permalink) Old 11-12-2019, 11:49 AM Thread Starter
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Thanks wraithman that helps as I could not figure why RR363.


I have been looking at the manuals for the car and looks like I have a bit of learning to do here.


There is what looks like a mechanical clutch/governor that interacts with the brake system. linkage.


Anyone then that can explain it a little for me as I can't get the manual to answer my questions never worked on this car before as I said. Looks like if it is just hydraulic leak problem then simple to trace a leak but how does the linkages interact for say bleeding. Does engine have to be running?


Any web links to info would help



Steve
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post #4 of 27 (permalink) Old 11-12-2019, 01:41 PM
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Steve, much easier to just read the appropriate section of the manual rather than retype it here : http://rrtechnical.info/sc/sc1/wshop/7.pdf

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post #5 of 27 (permalink) Old 11-12-2019, 02:03 PM Thread Starter
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Thanks Jim,


I had not found that link and was still trying to piece it all together from the Bentley heritage site parts explosions.


Some good bedtime reading to do now


All the best


Steve
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post #6 of 27 (permalink) Old 11-12-2019, 02:55 PM
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Steve Go to Youtube and search RollsRoyceNut and watch the many Cloud videos that Ronnie Shaver has posted. Very informative.
You will like.

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post #7 of 27 (permalink) Old 11-12-2019, 08:13 PM
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Depending on how you go about bleeding the brake system.
Try not push the pedal right down as you will push the piston
to bottom of the bore. On almost all makes of cars there will build up there.
It will damage seals on piston. I only go about 3/4 pedal travel
The thing on back of trans is mechanical sorvo.It only works when the drive shaft (propeller shaft) is turning.
It work when you press the pedle down and pesses the discs together. It like slipping clutch transmitting some energy
into brake system hydraulic and rods.
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post #8 of 27 (permalink) Old 11-13-2019, 01:41 AM Thread Starter
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Hi,


I fell asleep once I got to the part the car has two brake fluid reservoirs. So I need to ask if both or just one is empty.


Can I assume that the double reservoirs are either front and back or front left and rear right wheel separation. Just if only one has emptied it will help where to look first for any fluid loss.



I will keep looking at the videos but not even knowing the basics of this system yet still struggling but will get there by the weekend.


Thanks for tip on bleeding, it is these sort of other owners knowledge and experience that are so useful.


I still don't yet fully understand the servo how it interacts but will keep reading and watching youtubes till I do.


Thanks for all advice so far.


Steve
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post #9 of 27 (permalink) Old 11-13-2019, 02:11 AM Thread Starter
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OK got the pipe layout to each wheel now from Jim's link. It was not that easy looking on a small netbook as the picture is split and side ways displayed.


Will hard copy print off and stick together and it will no doubt help better for pipe layout, but working out all that linkage is not so easy.


And I thought Shadow brake systems were complicated enough I can see an overnight stay is going to be likely so I will pack my pyjamas.



Steve
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post #10 of 27 (permalink) Old 11-13-2019, 06:35 AM Thread Starter
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Hi,


OK working through the mechanical operations so bogged down with research.


Quick question if someone can help are the master cylinder repair kits bespoke and need to get from RR parts dealer or has anyone service parts details or part numbers.


help appreciated



Steve
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