| Author | Message | ||
     Robert Noel Reddington Grand Master Username: bob_uk Post Number: 542 Registered: 5-2015 |
Penrite Oil of the UK say they have been supplying Super Dot 4 as a RR363 replacement for 6 years. They recommend that should noisey pumps and or rams occur then add 2% or more of castor oil. Further to this they say also Dot 3 can be used as a base for the mixture. Also suitable for pre 1966 Citroën using LHS polygycol ester base brake fluid. So a reputable oil company is confirming what Citroën and Shadow fans have thought for years. | ||
| Mark Aldridge Prolific User Username: mark_aldridge Post Number: 261 Registered: 10-2008 |
Bob, this is most interesting, at last someone is putting there head above the parapet ! Can you post the whole article . Mark | ||
| Richard Treacy Grand Master Username: richard_treacy Post Number: 3228 Registered: 4-2003 |
All soothing hearsay, but would Penrite ever put it publicly in writing ? | ||
| Geoff Wootton Grand Master Username: dounraey Post Number: 973 Registered: 5-2012 |
http://www.penriteoil.com.au/tech_pdfs/Rolls%20Royce%20363%20Brake%20Fluid%20-%20Nov%202014.pdf | ||
| Richard Treacy Grand Master Username: richard_treacy Post Number: 3229 Registered: 4-2003 |
My goodness that is very brave. Pure castor oil indeed. These people must have remarkable product liability insurance policies. | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 1686 Registered: 6-2009 |
Cue music from Don't Cry for Me, Argentina: We knew it had to happen, it's not that strange! To confirm what many long have known, Rejected in some quarters, but made obvious sense. So I chose reason, running around trying, yes, a homebrew, And found it works fine in the car, over years and the miles now, it's true! Don't cry for me, oh dear Castrol The truth is, I do not need you, Nor your supply breaks, nor your high prices, I've done my field trial, now keep your distance. . . | ||
| Robert Noel Reddington Grand Master Username: bob_uk Post Number: 543 Registered: 5-2015 |
Once I read the Penrite technical bulletin I was quite happy at using castor oil. Do note that Dot is not a materials specification but a performance specification. Which means that Penrite only guarantee their brake fluid and castor not any brake fluid and castor. However Penrite Brake fluid appears to be pretty much the same as any other brake fluid. So I am a happy bunny. Also on a legal point the bulletin is evidence in the defendants favour should the an accident occur because of castor oil. Unlikely to happen. Correction. Penrite is an Australian oil company with dealers in the UK. Penrite oils have a good reputation and are OEM approved by lots of car makers. Today I brought 5 litres of Comma dot 4. £22.95. Sorted. Comma is a well known oil company in the UK. A litre of castor oil is on order. Castor oil is quite hard to get. Most offered locally has zinc added for nappy rash on babies. My son works for Lush cosmetics who use castor oil for making soap. However I have asked them for a sealed 1 litre bottle not a litre from a 45 gallon drum because of contamination caused by their production methods of soap. So I will have to wait. A Citroën guy has also worked out that the percentage should be 9.5% to accurately copy RR363. So between 2 and 10%. However in hot places this may be increased to 15% and lowered in cold places. | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 1687 Registered: 6-2009 |
Bob, Have you checked with your local chemist/pharmacist for castor oil? Pure pharmaceutical grade castor oil is very easily available in the U.S. at virtually any pharmacy, including the one at Wal-Mart. It's commonly employed as a purgative before certain radiological studies of the lower gastrointestinal tract and no prescription is required here. A pharmacy has always been my source for pure castor oil. Brian | ||
| Robert Noel Reddington Grand Master Username: bob_uk Post Number: 544 Registered: 5-2015 |
That was my first port of call. But drew a blank. Castor oil is a laxative. WW1 planes used castor oil which splashed back on the pilot. They called themselves the regulars. And very regular they were. My son will sort it out. The compamy is going to charge cost only. Castor oil makes me think of grandma's remedies. Grumbling pumps a spoonful of castor oil. One concern of Boots chemist is that it was for bringing on early labour in childbirth. Which is dangerous. Anyway I am not desperate for castor oil because I am about to service the ride hydraulics and flush the whole system. And I know that a short period of running on straight Dot4 is fine. Once flushed and bleed and all correct then I will simply add castor oil direct to the reservoir. The pumps will soon mix it. Then bleed a bit out of the rams, fully extend the rams and let them down by bleeding so the ram gets a slug of the mix next time the rams jack up. The brake valves will get the mix as far the start of the lines to the calipers, which will be happy chappies on normal brake fluid. Sounds like a plan. Onward and upward. Shame the reservoir hasn't got drain cocks. I wonder if Crewe read this stuff and say here we go again over servicing stuff. | ||
| David Gore Moderator Username: david_gore Post Number: 1745 Registered: 4-2003 |
At last, we can finally put the RR363 saga [never-ending-story.....] to rest and into the archives for posterity. A big thanks to Penrite for confirming what many have said in the past but who did not have the credibility of a major reputable lubricant specialist supplier. I am proud that it took an Australian company to have the courage to go public and is an extension of the establishment of the Technical Library to help all owners no matter where they live in the world. "Mateship" is still alive and well  . Standby for the next installment which I suspect will be the future availability of pure unadulterated castor oil  . | ||
| Robert Noel Reddington Grand Master Username: bob_uk Post Number: 548 Registered: 5-2015 |
I have always noticed that Australians put their money where their mouth is in general sort of. The castor oil problem appears to be a local problem. Because in Fleet Hampshire 50 miles away is Europe's biggest castor oil company. The USA is easy - Wall Mart. If I look hard enough there will be castor oil in Bournemouth somewhere. I have never bought castor oil. Linseed oil I have. I have ordered only a litre because I think shelf life is maybe 3 years in cool dark place. I still laugh about the chef who used cooking oil in his brakes on a Rover he also got nicked for a rolled up carpet as a bumper. The cooking got hot and turned to jelly. So just remember that 3 years max for little used cars and maybe every year for daily drivers and here we go again at over servicing. And don't eat sandwiches while playing with this stuff because you will become one of the very regulars. jokes Lucas went to the House of Lords to get Ohms Law repelled but failed due to resistance. Bosch invented diesel injection Lucas invented the short circuit. As a cure Lucas fitted longer wires. Lucas motto was home before dark. Off dim flicker is Lucas version of headlamp switch. Lots Unsoldered Connections And Splices. Lucas invented night time. Strangely I personally have never had Lucas electrical problems in 50 years of working on Lucas stuff. Many others have though. | ||
| Jim Walters Experienced User Username: jim_walters Post Number: 44 Registered: 1-2014 |
Any hobby shop that has RC aeroplanes will have castor oil for mixing with the fuel for lubrication of the engines. It costs me $12 CDN for a litre at a local hobby shop and that is enough to make 10 litres of 363 substitute. As it is already formulated to mix with fuel, this is what I have been using to mix with DOT3. No separation or cloudiness issues in the test jar on my desk I mixed up several years ago using the RC castor oil. I have also been using it in my personal car for more than 30K miles with no issues and I have used it on occasion in the winter when the outside temperature is below freezing with no issues. Using a 9.25% mixture equals the viscosity of 363 according to the testing undertaken by one of the Citroen guys. This is easy to make at the same viscosity, 92.5 ml of castor oil added to 907.5 ml of DOT3 equals one litre of 363 substitute. Use at your own risk etc. etc. etc. but I am convinced there is no problem using the homebrew version. SRE22493 NAC-05370 www.bristolmotors.com | ||
| Benoit Leus Prolific User Username: benoitleus Post Number: 216 Registered: 6-2009 |
Would Castrol A747 be suitable ? http://www.sip-scootershop.com/en/products/2stroke+oil+castrol+a+747+_14190000 Benoit | ||
| Richard Treacy Grand Master Username: richard_treacy Post Number: 3230 Registered: 4-2003 |
Sounds good. There is one slight hitch. It doesn't solve anything. Eureka, Problem Solved At Last I read here. I have just saved five bucks. When the mentioned oils and fluids supplier over its Technical Hotline made the advice to use a little castor oil a few years back, and to add a touch more if needed for whatever reason, that is where it stopped. 2%ish maybe. Maybe more, maybe less. Whatever. Local Bentley/Rolls-Royce specialists, and I know of at least four in Sydney, independently approached the mentioned firm and were encouraged to follow the advice of the Young Turk, a salesman skilled at Googling --Citroen Club Budget LHS-- (LHS is similar to RR363 but not identical), asked his employer to supply the mixture ready to use. Branded, with a product name if you please. The response ? NO WAY. Do so at your own risk. That was that. In the last three months, one specialist even went to the trouble of engaging lab tests which showed that granny's castor oil, or even toy aeroplane castor oil, lawnmower 2-stroke additive and Castrol R racing oil are not to be found in RR363. Basically, chemically unmodified castor oil certainly does not dissolve, let alone disperse, in glycol-based fluids. It is just like the oil and vinegar on you salad lunch. Add the classy olive oil to the extra virgin vinegar, shake hard and serve. Wonderful. The remnants in the jar separate themselves shortly afterwards.000 The antidipersants, xylene substrates and the other possible components found in the lab tests don't exactly make Dot3/4 plus a splash of the best laxative from the local pharmacy seem like something viable other than shifting the barge from the used car lot. Why not use RR363 and be done with it ? | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 1688 Registered: 6-2009 |
Richard, You do yourself, and fellow owners of SY cars, absolutely no service by making unfounded claims about castor oil not being completely miscible in DOT3 (or any) glycol based fluid. I, and a number of other posters, have made these combinations and have had them on the shelf and in our cars for years now. I can say unequivocally that there is no separation - none - between DOT brake fluid and pharmaceutical grade castor oil. This is over the course of five plus years on the shelf with original mixture and slightly less than that in the car. Please stop making assertions that you clearly know nothing about. I guess it does help in discrediting you, though, in making these self-appointed proclamations that don't hold up in practice in your role as He Who Must Be Obeyed. Brian | ||
| Geoff Wootton Grand Master Username: dounraey Post Number: 974 Registered: 5-2012 |
Richard, With all due respect, you do have a habit of quoting research material that favors your viewpoint without giving reference to the sources. The following sentence, taken from your above entry would be of great interest to everyone on this forum: one specialist even went to the trouble of engaging lab tests which showed that granny's castor oil, or even toy aeroplane castor oil, lawnmower 2-stroke additive and Castrol R racing oil are not to be found in RR363 Could you publish the papers containing the results of these lab tests, or even just the name of the specialist. Geoff | ||
| Jim Walters Experienced User Username: jim_walters Post Number: 45 Registered: 1-2014 |
Quote from Richard Treacy: " Basically, chemically unmodified castor oil certainly does not dissolve, let alone disperse, in glycol-based fluids. It is just like the oil and vinegar on you salad lunch. Add the classy olive oil to the extra virgin vinegar, shake hard and serve. Wonderful. The remnants in the jar separate themselves shortly afterwards.000 " Unquote. With all due respect Richard, your statement is completely contrary to my experience. If I take any heed to your statement, then RC aircraft castor oil made to mix with fuel must be chemically altered to do so. Maybe yes, maybe no. What I do know is that the RC castor oil does indeed readily dissolve in DOT3 and the jar of it on my desk at this time shows no signs of separation after several years. A few months back I put it in my freezer for a couple days and upon removal it remained unchanged. NO signs of separation or even cloudiness. Hardly a controlled, scientific test but good enough for me to use in my own car. If you are going to make a statement like that please tell us what castor oil you used and mix it with DOT3 and post a picture of the results. I am eager to see what castor oil you used in DOT3 that was immiscible. SRE22493 NAC-05370 www.bristolmotors.com | ||
| Robert Noel Reddington Grand Master Username: bob_uk Post Number: 550 Registered: 5-2015 |
Pure Castor oil is castor oil with no additives. RC model shops thats a good idea never thought of that. Penrite have stated its OK in a technical bulletin. Such stuff is not to be dismissed. After all they are experts. This and the mountain of empirical evidence and others experiences including Citroën. The Dot 4 I am using is £4.60 a litre not exactly cheap but cheap enough to not worry about flushing a litre or so through while bleeding. The only fluid I return to the car is coolant. The rest I scrap or use on something else. At 18 quid a litre RR363 it wouldn't take much of a hydraulic problem to get really expensive. A rusty pipe and 80 quids worth of fluid drains out. And despite mine and yours best efforts the buggers leak once in a while. | ||
| Mark Aldridge Prolific User Username: mark_aldridge Post Number: 263 Registered: 10-2008 |
The simple summary of this topic seems to me to be if you want to use homebrew, then do so ; if you wish to buy Castrol RR363 then do so; afterall , they are our own cars and therefore our own decisions ! Personally whilst I can get RR363 I will use it, when I cannot ,then its time for homebrew experiments. | ||
| Philip Sproston Experienced User Username: phil2025 Post Number: 22 Registered: 7-2006 |
Mark, your summary is right. It is a personal choice. On the Castrol data sheets, both English and Australian, yes, there are two quotes 5-10% caster oil. And after talking to Penrite they recommend 2% plus, but if noisy rear rams, increase up to 10%. Don't forget last car to use RR363 was a 1980 SS11. That's 25 years ago and every part is worn and Dot 3 and 4 are not the same fluid as 25 years ago. It would be nice if Castrol talked to Penrite to produce RR363 under licence so there'd be another suppler to stop stock worldwide running out which has happened. | ||
| Richard Treacy Grand Master Username: richard_treacy Post Number: 3231 Registered: 4-2003 |
My sources ? A good start is the Castrol product data sheet in the Technical Library. http://www.rrtechnical.info/RR363_ProductDataSheet.pdf See Page Three of the documant where it is headed Safety Data Sheet. They list two of the key additives, one of which is a modified castor oil of course. It is modified so that the final mixture, whilst not a solution in chemistry terms, will not separate to its ingredients for a reasonable period of time. The other sources include high school chemistry text books on solute+solvent=solution and the definition of a suspension along with its stability. I shall not declare names of other businesses as that would be inappropriate on this forum. BP-Castrol are alone in presently being uniquely and firmly linked to this subject. Girling escaped with relief in 1974 upon the introduction of RR363 for all postwar vehicle (although earlier cars don't really need RR363). One local B/R-R specialist here in Australia very recently spent a considerable sum on having laboratory analysis of RR363. It shoed up a few small amounts of additives never mentioned in the public arena, although I have seen references to traces of Xylenes and alcohols mentioned elsewhere. He took the results to a supplier who would only agree to mix the stuff if a comprehensive liability disclaimer were signed. What killed the project off was the $35,000 annual product liability insurance required to use or to sell the stuff. I can only imagine what a US company would be up for given the extremes of litigation there compared to Australia. So, with that background, he and two other specialists have last week jointly invested $20,000 in an initial shipment by sea. Another shipment is booked when BP does its next run of production later this year. Surely that commitment by these Australian specialists says something. Another four specialists that I know here regularly airfreight 50 litres or so to our shores awaiting adequate stocks arriving at a certain Sydney outlet. It seems that a great majority of Australian R-R/B specialists insist on the product from BP-Castrol. With the above factors broadly accepted within the Australian industry, the firms that I cite are not using RR363 for fun. They take product liability seriously. I hope that most owners actually prefer to use RR363 but are concerned about how much longer it will be available. The best way to make sure that it continues is to buy it. The worst is to do otherwise. If you are DIY, then you have the advantage of taking on your own risks but there seems to be no panacea. Mind you, if you don't ever change the fluid it doesn't affect you either way. The danger here is to hear what you want to hear. The Technical Bulletin referred to in an earlier posting is vague to say the least, no doubt deliberately so. If that firm were really sure about the bulletin I cannot imagine that it would not be marketing its own-brand product agressivly along with its other large range of products worldwide. | ||
| Bob Reynolds Grand Master Username: bobreynolds Post Number: 337 Registered: 8-2012 |
"I hope that most owners actually prefer to use RR363 but are concerned about how much longer it will be available. The best way to make sure that it continues is to buy it. The worst is to do otherwise. " Very good point. Those brewing their own mix are not doing the rest of us any favours. | ||
| Richard Treacy Grand Master Username: richard_treacy Post Number: 3235 Registered: 4-2003 |
By the way, the mixtures may seem stable unused and dry for quite a while or even for many months. So far so good. I did a little experiment of my own over a decade ago. Add a few drops of clean water to each of those jam jars, one containing home brew, one with straight DOT3/4 and another with RR363 as a control. Shake them up, now slightly hydrated as happens in service as the reservoirs breathe. All will probably show no reaction or perhaps go slightly cloudy. Have a look a month later and compare the brew to the other two. The penny will drop. RT. | ||
| Robert Noel Reddington Grand Master Username: bob_uk Post Number: 566 Registered: 5-2015 |
Castrol GTX engine oil is different from say Motul 20/50 engine oil but both are suitable for a Shadow engine and GTX is approved but Motul isn't approved. So just because a fluid is different it doesn't mean it's the fluid is unsuitable. Rolls Royce tested the fluids but when it comes to suggesting to customers who are rich customers that normal brake fluid and n % castor oil should be mixed up obviously RR is going to say no way Pedro we offer a special stuff so our customers can't cock it up and end up with fluid all over the kitchen table and ruined clothes. Can you imagine Elton John mixing fluid. Visual inspection is very un science. When the engine is running the pumps are flowing and mixing and heating the fluid. The heating drives out moisture and because brake fluid absorbs water the dehydrated fluid will suck moisture out of fluid that doesn't circulate such ad the cul de sacs to the calipers. The fluid will pull moisture from the calipers because the brake fluid being hygroscopic will even the water content out. This applys to RR363 Yak363 Dot 2 3 4 and 5.1. Another reason to drive the car. Does cloudy fluid mean anything will cloudy fluid damage or cause the brakes to fail. My experience with brake hydraulics is that providing the fluid does not rot the seals the brakes will work on all manner of stuff from vodka to water or milk. So sudden brake failure is not going to happen. The milk will go off in 2 days and curdle and the warning lamps will come on. My conclusion is use RR363 or Yak363. Neither is going to cause a problem. A small tip for cars that are not used regularly. Using red rubber grease put a dollop on each vent hole in the reservoir caps. If when using the pressure rises the pressure will simply push the grease away. When not using the car simply move the grease back over the hole. Over filling the reservoir means less ullage above the fluid and less moisture to be absorbed. Always discharge the hydraulic pressure before overfilling. No higher then where the lid joins the tank. Lockhead sell super dot 4 in 20 litre bladders that collapse when the tap is opened. Air cannot get in. The bladder is in a box. The small amount of air in the box when new is dried air. I use 5 litre solid plastic cans. I decant into a jam jar and put the lid back on the can asap. In other words 15 secs. I think the dangers of opening a can on fluid and allowing damp air in are overstated. The self life of brake fluid is they reckon 3 years. But providing the fluid is stored in a dark dry place I see no reason why 6 years wouldn't be OK. Maybe even 10 years. Jam Jar because its clear glass and I can see all of fluid clearly. The jam jar is reserved for new fluid only. For bleeding use anothe separate jam jar. Wash in hot soapy water after and allow to drain and dry. As I have discovered RR363 and Yak363 are PAG type oils. PAG type oils have a long shelf. A sister of glycolic type fluids is antifreeze. Glycol last for years if in a sealed container. If an engine is not used then the antifreeze will last for years if the cooling system is sealed. Old brake fluid is handy stuff because it strips paint and lacquer. Including lacquer left by petrol. Soak carbs in it. Then wash with soapy water. It not a bad release fluid for rusty stuff. It also works as an antifreeze but don't because any leaks and no paint | ||
| Geoff Wootton Grand Master Username: dounraey Post Number: 976 Registered: 5-2012 |
Having read the Penrite Oil bulletin on RR363 I was curious as to whether they had run lubricity tests on DOT3/castor oil mix or whether they had discovered the formula for RR363. I figured it had to be one of these options for them to release such a definitive document. So, I emailed their technical support section and asked for further details of the information they had given in the bulletin. To my surprise I received a reply. In a subsequent email I asked if they would mind me publishing it on this forum, which they agreed to, but asked if I could remove a reference to where the research chemist had moved to after his time at Castrol. Therefore the following email is reproduced verbatim, minus the one line, which has no direct relevence. Make what you will of this: RE: RR363 lubetech (lubetech@penriteoil.com) To: geoffwootton@hotmail.com Dear Geoff, We were told by the guy that developed RR363 how to make it and that is what is on the bulletin. The issue is lubricity and that is what the castor oil provides. That said, standard Brake Fluids will work but there may be an occasional knocking in the system -this is what the castor oil fixes. (line deleted as requested) I hope this helps a little. Regards, Technical Support Penrite Oil Company T 1300 PENRITE (1300 736 748) | F +61 3 9801 0977 PLEASE CONSIDER THE ENVIRONMENT BEFORE PRINTING THIS EMAIL} Geoff | ||
| richard george yeaman Grand Master Username: richyrich Post Number: 360 Registered: 4-2012 |
Geoff. Straight from the horses mouth. Last year I went RR363 all was well until I sold my remaining stock to my friend Barry who had developed a leak I told him I would order some more for myself that was a joke none to be had anywhere so it was back to the home brew its always there when you need it and it will be all that I will be using in future. Richard. | ||
| Geoff Wootton Grand Master Username: dounraey Post Number: 977 Registered: 5-2012 |
Hi Richard I will also be moving over to homebrew, when the two year hydraulic fluid replacement time arrives. There is just too much corroborating evidence saying it is safe to do so. There are too many owners, whose opinion I value, who are using this alternative, some of whom have been doing so for many years, without issue. Ultimately however, I agree with Mark's comments above, "if you want to use homebrew, then do so ; if you wish to buy Castrol RR363 then do so". It occurs to me that given we on this forum are a small subset of total Silver Shadow owners worldwide, a few of us using homebrew will have negligible effect on demand for RR363 and Castrol's need to continue supplying it. Geoff | ||
| Robert Noel Reddington Grand Master Username: bob_uk Post Number: 584 Registered: 5-2015 |
Thats that completely sorted. What else can we worry about.  Chrome wiper blade holders are difficult to get. | ||
| Richard Treacy Grand Master Username: richard_treacy Post Number: 3238 Registered: 4-2003 |
Now I really am convinced too. The son of some bloke’s mother-in-law’s sister once worked for Castrol and served up jam donuts to the research department in 1970. His step brother’s best mate’s ex-wife told someone else at the pub that brake fluid with a dash of castor oil will do for an old Rolls-Royce and any other suggestion is a conspiracy. His second cousin’s son worked at an automotive fluid resellers’ firm doing promotional bulletins. His friend, who has a BA in literature, managed to issue a bulletin to the effect so it must be true and pure castor oil will do. BP, or Castrol (short for Castor Oil, Castroroil, in the first place), is apparently lying about the need for modified castor oil in its SAE declarations. The xylene and alcohol additives ? Easy. Beer with a dash will do then trick. The dash of whiskey is a good lubricant. | ||
| Robert Noel Reddington Grand Master Username: bob_uk Post Number: 590 Registered: 5-2015 |
The connection is not that remote. The guy who formulated told Penrite. Assuming that Penrite don't tell lies and risk such consequences of lying about the Formulation of RR363. Bearing in mind the various Governments brake fluid regulations. What has Penrite got to gain by lying. They know that the customer base for their Brake fluid which is going to be base for Yak363 is very small. Most will just get any makers brake fluid and add castor oil. Penrite has more too lose by lying. Especially in a technical bulletin (VW emissions!!) Chrome wiper blades are still readily available. | ||
| Patrick Lockyer. Grand Master Username: pat_lockyer Post Number: 955 Registered: 9-2004 |
"Most will just get any makers brake fluid and add castor oil." Yep thats what I did a couple of weeks ago in the Shadow 1, guess what the pumps are knocking and that has never happened before. i shall change the fluid and try RR363 to see if it stops. I have come to my own conclusion about the hose failures on these RR cars if not changed as well, something that does not happen to older classics hoses it seems,IMO the RR failings is down to the castor RR363 fluid running within the hoses. O/topic reguarding the NOT straight forward way of uploading pictures on this site and sugesting sending a memmory stick to OZ, would it not be time for for a update to load pictures in a different format as other many forums now do. Maybe alot of the clap trap will cease with pix showing what is actully going on. Moderator's Comment: Pat, our Administrator has been evaluating alternative Forum software for some time subject to the constraints of his work and personal responsibilities. We know better and easier to use software is available however other important factors are also involved including the capability of using the new software to access and search the priceless, and I mean priceless in every sense of the word, archives of the current Forum. Yes, one picture can be worth a thousand words but a thousand words can take the place of a picture that cannot be obtained by any means. The substitution of videos for pictures will also become more common when high resolution imaging, camera stabilisation and low light recording capabilities become available at affordable prices. | ||
| Robert Noel Reddington Grand Master Username: bob_uk Post Number: 591 Registered: 5-2015 |
I have too taken note of SY cars liking for blocking hoses. As Pat Lockyer said many cars have hoses that are much older and are not blocked. Cracked and looking tatty but not blocked. I have seem blocked hoses on other cars but not many. The amount of hoses used is not needed. Only 4 front and 4 rear are needed the rest could be metal pipes with coils for slight movememt of the subframes. Many cars are like this including the Spirit. Another way is instead of mounting the fixed end of a hose to the front subframe, mount it on the body then there are no subframe movement issues metal brake pipe wise. Like the rear brakes on SY Then we come to the lp hoses on the pump supply and returns from ACV. These would be better having proper unions rather than hose clips. I have mixed thoughs about this hydraulic system. Bits of it could be much better. The hydraulics splattered all over the rear cross looks like an explosion in a pipe shop. The ACVs could have been bolted to the gearbox in a better access position. However RR didn't intend that 4O to 50 years later we would repairing rusty pipes etc. My pumps and when rams working are quiet. |
