September-October - RROC - Rolls Royce and Bentley Owners of ...

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TECHNICAL: Cool Cloud by Mike Faircloth When I got my 1958 Silver Cloud (SFE 423) several years ago, it came from a gentleman in the southern Midwest that we here in San Diego might affectionately refer to as a “Redneck”. It had some interesting engineering refinements. One of those refinements is the subject of this article. The Cloud 6 cylinder engine uses a radiator that has a small cap on the right side that is essentially open to the atmosphere and connected to a down tube that runs down the side of the radiator to the road below. When the car overheats water and or coolant simply blows out of this tube to the ground. When I rebuilt the engine on this car, I cleaned out the block. It was evident that this car had done plenty of “overflowing” since the block was about half full of mud, grunge, rust, gloop, goo, and some things unidentifiable. The afore mentioned owner had decided to fix this incontinence problem by attaching a radiator overflow tank. See figure 1 : Redneck overflow tank This refinement consisted of a rubber hose going to an old drinking flask that once held about a cup of booze. Since the previous owner had cut the overflow tube to attach his refinement to the system, I thought maybe I could use this to do some of my own re-engineering. It is well known that putting pressure in the cooling system will raise the boiling point of the coolant at approximately 3 degrees for every pound of pressure. There are limits to this, as you will eventually blowout the hoses and/or the radiator itself. Modern cars run pressure caps of 18 to 20 psi, thus raising the boiling point quite a bit. I had seen early Clouds with pressure caps that had been put in place of the original screwdown cap, but didn’t like the look. I wanted something a little less conspicuous. A search through the Mcmaster-Carr catalog showed a brass and stainless steel “adjustable” pressure relief valve that was very small (part # 48935K25 at a cost of $5.85 ea.). This valve could also be reversed to work as a vacuum relief valve with adjustablility from 0 to 20 PSI and 0 to 30 inches of mercury. I ordered 2 of these and attached them in tandem. One is set for 8 pounds pressure; the other is set to 2 inches of vacuum. The entire affair was then connected to the down tube where the previous owner had already cut the tube. See figure 2 The pressure valve raises the boiling point from 212 degrees to about 236 degrees. Both valves are in an overflow tank set on the frame under the generator. Should the car overheat, the coolant would be caught in the tank, not on the road. When the system cooled back down the vacuum valve would open and draw the expelled coolant back into the radiator. To keep track of the temperature I made a small bracket that mounts to the inside of the open cubby hole in front of the driver (right-hand car). This holds a temperature gauge and oil pressure gauge. These can easily be seen even at night. I have heard of cloud owners carrying a flashlight to be able to see the dash gauges at night. These modern gauges are out of the way and don’t prevent me from getting the things in the cubby… papers, tire pressure gauge, small flashlight. etc. etc. See figure 3 Since this adaptation the car has run great for the last year and a half on the outskirts of San Diego California where the summer temp is in the 100 degree range and winter in the 20’s … never over heats… and doesn’t leave “puddles”. Mike Faircloth September-October 2007 Finis Page 8 Volume 35 Issue 5 Photos by Mike Faircloth
Coming Events: RROC-SDR November Meet September-October 2007 November , 2007 RROC NATIONAL MEET WINNERS’ RECOGINTION, DRIVING TOUR & PICNIC We will be gathering at Lou and Valerie Suter’s home, 4446 Point Loma Ave, San Diego, CA 92 07 at 0:00 a.m. for a continental breakfast. We will be socializing as we view a video presentation of pictures of the RROC National Meet in Stevenson, Washington. This will be followed by a driving tour from Point Loma to Coronado. We will enjoy some wonderful scenery as we caravan. The drive will end at Bay Side Park in Coronado. Bring your own food, drinks, utensils, and chairs for a picnic at the park. (No alcohol in the park, please.) Driving maps will be provided at the Suter’s home. After the picnic, we will walk (less than a block) to the home of Rob & Ivonne Webb to toast the winners (eight awards were garnered by members of our region), view their cars and trophies, and - oh yes - enjoy dessert. Don’t miss out on this opportunity to celebrate RROC, to see friends that you may not have seen recently, and to make new friends. This is the perfect event for new members to feel at home in RROC! RSVP to Valerie Suter 6 9-224-0523 or valeriesuter@cox.net. Please send Valerie your $5.00 per person check made out to RROC-SDR prior to November 5 th . Finis Page 9 Volume 35 Issue 5
Page 1 and 2: Advertisers/Supporters: Chuck Turne
Page 3 and 4: 2007 / 2008 - Region Calendar of Ev
Page 5 and 6: Ivonne & Rob Webb September-October
Page 7: Newport Harbor Cruise & Lunch (cont
Page 11 and 12: RREC Concours & Rally by Ivonne Web
Page 13 and 14: British Car Day 2007 by Robin Walke
Page 15 and 16: TECHNICAL: Backup Camera Installati
Page 17 and 18: TECHNICAL: Backup Camera Installati
Page 19 and 20: RROC National Meet - Stevenson, WA

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