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The Story of the 4.99 / 4.107 / 4.108 Engine –the first small Perkins diesel.
Although the early Perkins engines were found suitable for use in the larger cars of the 1930s and ‘40s, they were both too large and too heavy for the post-war vehicles. Frank Perkins did not want to lose the possibility of providing diesel power for the modern cars and vans, so as a consequence in the mid-1950s he asked that the Experimental Department look at making an engine of around 1.5 litres, to produce in the region of 50 BHP at a speed approaching that of contemporary petrol car engines.
The engineers decided that adapting an existing petrol engine to diesel was the most practical and cheapest approach, and so a Morris 1.5 litre engine was obtained and the necessary changes made to produce a diesel prototype. This involved the design of a new cylinder head, the production of an all-welded steel cylinder block and the scheming of a suitable combustion chamber and fuel injection equipment, using initially a CAV in-line fuel pump.
Test bed trials showed that the engine – designated as the Q4 at this stage - would run and produce reasonable power, so the next stage was to install the engine in a Vauxhall car, where it proved to give acceptable performance.
A 4.99 installed in a Vauxhall Victor:
Based on the results obtained from the minimal-outlay approach, the Perkins Board decided that there was potential for such a small engine with possible application too, in typical Perkins fashion, for other markets in the agricultural and industrial sectors. Design work proceeded and a number of innovative features were included in the design of what became the C99 (99 cubic inches capacity and ‘C’for Car). The engine basic design parameters, and particularly its 3.5 inch stroke, were influenced by the limitation of piston speed to 2000 feet/minute based on known technology.
It was decided to use a three bearing crankshaft and wet cylinder liners, with gear timing drive and cast iron cylinder block and head. Instead of the original Perkins ‘Aeroflow’ patented combustion chamber the experimental department opted for a new combustion system patented by a Mr Howard, an Australian engineer best known for the Howard Rotovator. This was an indirect injection design with a spherical chamber part machined in the cylinder head, closed by a special iron insert which formed the lower part of the chamber and also the specially shaped passage to the cylinder. The pintle-type injector was mounted vertically in the cylinder head directly above the insert.
The Q4 research engine.
A further important innovation was the introduction of the CAV DPA distributor-type fuel pump, which as well as being cost-effective allowed engine speeds to above 4000 rpm and featured a hydraulic governor providing ‘pull-off’ characteristics suitable for vehicle use.
Considerable test bed and vehicle running proved the design to be sound, with development of the combustion and fuel injection providing clean exhaust and acceptable performance and fuel consumption – important factors for road vehicle use. There were some mechanical problems too, with excessive wear of the skew gears driving the oil pump from the camshaft proving an issue needing specialist help.
The prototype engines were run in a variety of vehicles, including Vauxhall, Ford and Hillman cars, plus other industrial and agricultural applications.
In 1958 the engine was announced, with an opportunity to drive various vehicles being given to customers, press and employees, using the outer periphery of the WW2 airfield at Polebrook, which was being used by the Company at that time for storage and reprocessing of aluminium scrap. In line with the change in engine nomenclature already seen on the 4.270 and 4.192/4.203 engines, the designation of this new little diesel became 4.99 when released into production.
Only 1500 engines were produced in the first year of production, but the engine began to get good publicity, proving that under road conditions fuel consumptions in excess of 50 miles per gallon were possible, and the engine although underpowered in horsepower terms gave good road performance thanks to its superior torque characteristics. Many employees gained experience of the engine in the many conversions of cars undertaken by the Service Garage, these ‘pool’ cars being used for visiting customers and suppliers, service, etc. The drivers soon became used to driving with the right foot hard to the floor, and the ‘brick-wall’ effect of the governor run-out ensured that engines could not be overly abused! The confusion of service station staff when a driver pulled up to a diesel pump instead of petrol also provided amusement, there were very few diesel cars on the roads in the 1950s!
It wasn’t long before Perkins produced an engine with slightly greater swept volume, the 4.107 having 3.125 inch bore instead of the 3.00 inches of the original engine, giving 107.4 cubic inch capacity and providing greater torque and power, although most engines were used for industrial and marine use at speeds up to 3000 rpm.
A 1958 Hillmann Minx fitted with a 4.99V engine.
Service experience with the 4.99 engine soon showed that there were some problems with the design, especially when the engines were run under the severe conditions found in North American ‘reefer’ units. These were packaged engine and refrigeration units used in truck and railway wagons where they were expected to run for several hundred hours with minimal attention and with high expectation of complete reliability – Mercedes had held a large percentage of the market and Perkins had achieved a breakthrough at their expense. However the 4.99 engines suffered from water leaks from the wet cylinder liners and water pump seals, cylinder head gasket leaks and rapid oil contamination, this latter due to the relatively low operating temperature, extended oil change period and the tendency for the indirect fuel injection system to sludge the lubricating oil with carbon soot.
Perkins quickly developed a revision to the engine, moving to dry liners, ceramic water pump seals and higher oil sump capacity, together with a special large capacity ‘by-pass’ oil filter for the reefer application. Cooperation with the oil industry also resulted in high detergency oil specifications, allowing the oil to carry a greater ‘load’ of carbon particles in suspension without affecting lubricity and viscosity. After a short period when the engine was known as the 4.107DL (dry liner), the designation was changed to 4.108: this became the most popular version of the engine, soon supplanting the other versions. Rated up to 52 BHP at 4000 RPM, the engine was barely competitive with the petrol-fuelled engines of the 1960s and ‘70s in terms of power, but offered excellent pulling characteristics and of course vastly better fuel consumption.
Another problem that bugged the engine throughout its life was the phenomenon of cracking in the area of the bridge between the valves in the cylinder head. Various changes were tried, including change of cast iron specification, ‘tufftride’ heat treatment, Ricardo combustion chambers and additional cooling in the failure area, but all with limited success. Since the cracking did not of itself cause engine failure, service directives were eventually issued advising levels of acceptability!
The 4.108 achieved significant volume sales for vans and light trucks, being fitted as first equipment in Ford Transit, Bedford CF, Commer and other marques – pioneering a breakthrough for the diesel engine into this sector of the market. Significant advantages were claimed, and proved, for economy and reliability. There were however no similar production successes in passenger cars, only Alfa Romeo using the 4.108 in production vehicles in the 1970s.
A 4.108 engine was installed in a VW transporter (the rear engined ‘buggy’) as a demonstration unit, which impressed VW so much it led to the high volume, three year contract 4.165 (2.7 litre 4 cylinder) business with VW in their LT transporter, before they introduced their own 2.4 litre inline 6 cylinder diesel engine. The 4.165 engines for VW were produced in Hanover, Germany, which is another story.
The 4.107 and 4.108 proved to be very popular in the agricultural markets too, powering in the early 1970s thousands of small combine harvesters in the days when nearly every farmer with arable land had one, made by Claas of Germany and specialist Swiss & Austrian alpine transporters and ‘ladewagons’ achieving no less than 100% of the market with all the manufacturers in these countries, Schilter (CH), Rapid (CH), Aebi (CH), Reformwerke (A) and Lindner (A).
Its short installation length with the three bearing crankshaft, compared to the competition with a five bearing crankshaft, was a sales advantage than won business time and time again.
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A Perkins 4.108 as installed in the Alfa Romeo car.
It was in the marine market that the 4.108 found an enduring niche, providing power for both small craft and also auxiliary power for yachts, the most famous of the latter being Sir Francis Chichester’s round-the-world yacht Gipsy Moth III. The engine’s reliability and economy were prized, as was the availability of service through Perkins distributors virtually anywhere in the world.
The Gipsy Moth III yacht, August 1966:
The potential for uprating of the engine through turbocharging was tried but never reached quantity production, although some units were sold for aircraft ground power units made by Houchin. A few vehicle engines were made as prototypes and used in Company transport but that was as far as the project went; the product cost started to escalate for the additional parts needed and it was more advantageous to use the 4.154 or 4.165 engines produced in conjunction with Togyo Koyo in Japan. In the 1970s there were moves to upgrade the engine to a slightly larger version (the 4.112) which was successful in prototype form but never saw production.
The 4.99 and 4.108 were in production from 1958 until 1992, the last application being for the auxiliary power unit fitted on British Army tanks in the Gulf War to power the essential air conditioning equipment. A total of almost 500,000 engines were made in Peterborough, with small numbers built elsewhere from kits. The peak production volume was reached in 1970, when almost 30,000 were made. It is interesting to note that the engine remained in production alongside the more modern Prima/500 Series. Quite a record for an engine conceived in the 1950s!
© By David BoultonNovember 2009, with some sales and applications info input from David Foster.
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Public Law 108-282, Title II
See Additional Resources.
This document is also available in PDF (42KB).
SEC. 201. SHORT TITLE.
This title may be cited as the ``Food Allergen Labeling and Consumer Protection Act of 2004'.
Food Allergen Labeling and Consumer Protection Act of 2004. 21 USC 301 note.
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SEC. 202. FINDINGS.
21 USC 343 note.
Congress finds that--
SEC. 203. FOOD LABELING; REQUIREMENT OF INFORMATION REGARDING ALLERGENIC SUBSTANCES.![]()
SEC. 204. REPORT ON FOOD ALLERGENS.
Not later than 18 months after the date of enactment of this Act, the Secretary of Health and Human Services (in this section referred to as the ``Secretary') shall submit to the Committee on Health, Education, Labor, and Pensions of the Senate and the Committee on Energy and Commerce of the House of Representatives a report that--
Perkins 4.108 PartsSEC. 205. INSPECTIONS RELATING TO FOOD ALLERGENS. 21 USC 374a.
The Secretary of Health and Human Services shall conduct inspections consistent with the authority under section 704 of the Federal Food, Drug, and Cosmetic Act (21 U.S.C. 374) of facilities in which foods are manufactured, processed, packed, or held--
SEC. 206. GLUTEN LABELING. Deadlines. Regulations. 21 USC 343 note.
Not later than 2 years after the date of enactment of this Act, the Secretary of Health and Human Services, in consultation with appropriate experts and stakeholders, shall issue a proposed rule to define, and permit use of, the term ``gluten-free' on the labeling of foods. Not later than 4 years after the date of enactment of this Act, the Secretary shall issue a final rule to define, and permit use of, the term ``gluten-free' on the labeling of foods.
SEC. 207. IMPROVEMENT AND PUBLICATION OF DATA ON FOOD-RELATED ALLERGIC RESPONSES. 42 USC 242r.
SEC. 208. FOOD ALLERGIES RESEARCH. 42 USC 243 note.
SEC. 209. FOOD ALLERGENS IN THE FOOD CODE.
The Secretary of Health and Human Services shall, in the Conference for Food Protection, as part of its efforts to encourage cooperative activities between the States under section 311 of the Public Health Service Act (42 U.S.C. 243), pursue revision of the Food Code to provide guidelines for preparing allergen-free foods in food establishments, including in restaurants, grocery store delicatessens and bakeries, and elementary and secondary school cafeterias. The Secretary shall consider guidelines and recommendations developed by public and private entities for public and private food establishments for preparing allergen-free foods in pursuing this revision.
Austin sculpture bright eyes collection. All Sales are Final. All Property is sold as-is, where is. The bidder is responsible for determining all aspects of the item they are bidding on. At the discretion of the owner, it may be lowered for those that have a very easy shipping item.In-house shipping uses FedEx and USPS (and will check both for best rate).In-house shipping can take up to 2 weeks after shipping amount has been paid, not including the actual shipping time from FedEx and USPS.
SEC. 210. RECOMMENDATIONS REGARDING RESPONDING TO FOOD-RELATED ALLERGIC RESPONSES.
42 USC 300d-2 note.
The Secretary of Health and Human Services shall, in providing technical assistance relating to trauma care and emergency medical services to State and local agencies under section 1202(b)(3) of the Public Health Service Act (42 U.S.C. 300d-2(b)(3)), include technical assistance relating to the use of different modes of treatment for and prevention of allergic responses to foods.Approved August 2, 2004.
Additional Resources
Report to The Committee on Health, Education, Labor, and Pensions United States Senate And The Committee on Energy and Commerce United States House of Representatives, July 2006 (available in PDF, 1.8 Mb)
Inventory of Petitions Received under 21 U.S.C. 343(w)(6) for Exemptions from Food Allergen Labeling June 13, 2006
Inventory of Notifications Received under 21 U.S.C. 343(w)(7) for Exemptions from Food Allergen Labeling July 18, 2006
Guidance for Industry: Questions and Answers Regarding Food Allergens, including the Food Allergen Labeling and Consumer Protection Act of 2004 (Edition 4) October 2006
Guidance for Industry: Guidance on the Labeling of Certain Uses of Lecithin Derived from Soy Under Section 403(w) of the Federal Food, Drug, and Cosmetic Act April 2006
Perkins 4 108 Review
Approaches to Establish Thresholds for Major Food Allergens and for Gluten in Food March 2006
See also Food Allergen Labeling And Consumer Protection Act of 2004 Questions and Answers.
Perkins 4.108 Warning Labels Free
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