Replaced my intake manifold, which had two broken mounting ears due to improper installation, with another good, but used unit, sourced from Michael Salter. Chattering, i.e., fluttering or excess vibration, occurs when a valve is oversized for the application. Chattering is more than an auditory nuisance. According to experts at Circle Valve Technologies Inc., Harleysville, PA (circlevalve.com), check valves are among the most misunderstood members of the valve family. I will be happy to respond. Replace fluid and bled the system. Victor Seaber was the engineer with whom I worked. Circle Valve Technologies, Harleysville, PA, is a distributor of a wide range of valve products and brands. Welcome to my website covering the history, restoration and “personalizations” to my 1960 Austin Healey 3000 Mk I affectionately known as “The Bloody Beast.” Feel free to email me with questions, suggestions  and/or comments. The new distributor cap and ignition wiring assembly was then reinstalled to the distributor and to each of the spark plugs and to the coil. I am not sure when Mr.Delaney purchased AN5L11257, but I do have a receipt for parts indicating he was the owner in February 1983. Negotiating with Tom Delaney, British Car Day, Bowie, MD June 28, 1998. Sometimes this chatter is caused by the design of the cylinder, not the counterbalance valve. I will keep a ten year renewal checklist as a separate post and add to it as I think about items to address. I ordered these components from Centerline International.https://www.centerlinealfa.com/store. © 2020 Efficient Plant. My battery bracket/clamp was pretty rusty and partially consumed by battery acid. I will organize this list based on the categories of the Workshop Manual. Activity; Punchout. Model No. We had a conversation about the possible need to change out the Intermediate Shaft (IMS) bearing as this was a problem on this series of Porsche 911s. Makes it absolutely leak free and you Valve Chatter. Greased all suspension, steering and handbrake grease zerks. Since that is still on the car, I will wait until I remove it to complete the “construction” of the brass OVS. Sun offer a large range of different types of counterbalance valves to try and satisfy the wide range of application problems. breather fitting on the rear axle with a brass unit sold by Land Rover. Simply put, a check valve allows gas, liquid, or steam to flow in one direction while preventing backflow. The pilot assisted valve makes the counterbalance more efficient and reduces the power requirement. To be redirected to project entries, or posts, for the Jaguar MK2 Project, just click on the burgundy rectangular navigation box in the upper right corner of this site. A chronological summary of the service invoices through my father’s ownership is provided here: 1987 Alfa Romeo Spider Maintenance History – Sheet1. Counterbalance Valves - Athmosferic Vent. David mentioned that he had purchased some Pirelli tires for the car but had not yet installed them and he was intending to send them back.To save mailing expenses later when I would order tires, I decided that since I had room in my MB GL450 I would go ahead and purchase the tires ($1,150). I left early and arrived about 1:00 pm, grabbed some lunch and then dropped in on David and his business. New CACA-LHN-2000 Sun Hydraulic Counterbalance Valve Cartridge. Magnus Karlsson recommends the high ratio: Go for the high ratio and tell your mechanic to look at my homepage. Replaced the stainless steel flex fan with an asymmetric yellow plastic (nylon) fan sourced from AH Spares to reduce noise. This chatter usually applies to circuits with high load-induced pressure or when the counterbalance valve is mounted at a distance from the cylinder port. I read about the Virginia Institute for Performance Engineering and Research (VIPER) at Virginia International Raceway (VIR) in the January 2009 issue of Classic Motorsports. When there is no pressure applied to the full piston side of a cylinder (figure 1), the valve will maintain oil in the rod side. I got tucked in for the night and ready for the trip back to Virginia the next morning. It’s also one of the most common causes of check-valve failure. In stock and ready to ship. Steve Gerow ran into the same problem – the diameter of the rotor is about 1/4″ to great to fit the calipers properly. the outgoing shaft of the steering  box. These valves will reduce the power consumption, improve the life span of pumps and decrease the fluid temperature. I now intend to spend more time driving the Bloody Beast! True to my history with this car, everything takes longer than expected! However, I discovered the next morning that the battery discharge issue remains and I will now begin my sleuthing to try to discover the source of the problem. Check valves should be sized for the application, and not necessarily for size of the pipe. Added carburetor ram pipes and ITG air filtration socks. Between helping my son with his Bugeye, restoring a 1964 Jaguar MK2, and maintaining the 1987 Alfa, a 1969 MB 280SL and the Porsche in addition to the daily drivers there just wasn’t much time to drive! and sealed the cylinder head stud holes to prevent oil leaks. “5” but as valve will be normally in closed position and secondary port of valve i.e. Search Results . Added fuel bowl “Kouzies” from Joe Curto to insulate fuel bowls from exhaust heat and prevent vapor lock. A Bill of Sale confirms the sale of Alfie to Margaret W. and Alfred H. Lupton, IV of Brookfield, CT on June 29, 1989 for $15,000. COUNTERBALANCE VALVECOUNTERBALANCE VALVE Reference: 520-P-080510-EN-00/09.2015 CBPA-08. While I do not have a significant problem with the front/rear proportioning of the brakes after installing the rear disc system, some slight modification might yield a little improvement. The more dynamic seals in the counterbalance valve, the greater the hysteresis will be. I had previously disconnected the coil wire while replacing the coil. The task was then  completed with a successful test drive. Without more records research, one can only guess when the Lupton’s sold Alfie to the next owner. This is how he mounted his valve: “Stock brake pipe wasn’t long enough; I cut and reflared it near the motor mount. A typical circuit application for a counterbalance valve contains a pump, directional control valve, and an actuator. I will gradually need to accumulate parts for the work to be done. The counterbalance valve differs from the sequence valve by having a third port for introducing a pilot hydraulic pressure to a pilot chamber to assist the primary port hydraulic pressure in opening the valve. • hydraulic systems 2.) The earliest receipt for parts/service that I have in his name is dated May 1, 2012. The car still had its original Michelin tires that were too old to be safe.With everything buttoned up, I drove over to the Branford Holiday Inn Express and checked in for the evening. and I was ready for the trip home. Replace the Halogen sealed beam headlights with aftermarket Lucas PL 700 headlights. Counterbalance valves play an integral role in the important task of safely controlling an actuator, which may be holding a load or a person in the air. Replace fluid and bled the system. The rail will also drop freely when lowered which can cause additional wear on the machine. Model No. About a month after I completed the restoration work I drove the Bloody Beast 8,000 miles in a cross-country trip from Rehoboth Beach, Delaware to California, up the coast to Victoria, BC and then back to Harrisonburg, VA. There are a total of six wires connected to the coil terminals. The Problem – Handbrake Needs to Be Modified, The fix – grind the housing back about .0275″ and add washer stack. 1.) My son has now taken the Bugeye to his home. He may be ninety, but he still has a 12 cylinder, 1990 Jaguar XJS and a beautiful little VW Beetle to keep him occupied: Because of my all-consuming restoration of the Jaguar MK2, Alfie received very little attention. Service records indicate that Mr. Painter had service completed on Alfie beginning in October 2010 and I have a record of a parts order from him in February 2011. My wife and I relocated from Virginia to Florida in May, 2018 and the car remained in Virginia. Counterbalance valves are used on load holding cylinders, such as boom lift cylinders on cranes and manlifts, and with machines like haul truck bed … The OVS on the Alfa has been a well discussed topic on the ALFA Bulletin Board. Top Rated Seller Top Rated Seller. C $126.02. I have assumed that the reader will find this approach more useful than a sequenced chronology. www.healeyspecialists.com. The good news is that I have accomplished quite a lot and I am pleased to say that the Bloody Beast is running better than it has ever run while in my ownership, and that covers forty-nine years! It is nice to now have an Italian joining its British and German stablemates. Counterbalance valve provides smooth, positive motion control of a cylinder with a high load-generated pressure tending to cavitate it, such as on booms, cranes or outriggers, or on overcenter. 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