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Temple BowlingParty

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TheAugustmeetingwillbe attheCapitalLanesbowlingalley,820 CapitalCircleN. E. Last year,each of the two teams, the "Waxers"and the-"Rac-ers" seemed to claimvictory. Regardless of whowon, I'm told allpresent had a great time. (I wasnot tnere last year, due to. nursing an infected dogbite on my foot. -- Never thrust your bare foot ata toy poodle's face when he's acting hyper!)

Keep in Touch with CharlieThe Temple's Historian, Charlie Smith, has moved

to Georgia to be closer to relatives. You may want tomake note of his new address and phone. (And checkout his ad in our classifieds).

Qi4t Qitmpl£ Qiabld

2248 Hill Creek WayMarietta, GA 30062

(770) 5 I 8-8659

A shortmeetingwillstart at 7:00,followedbysome friendlycompetition on the lanes. A wordto the wise: from all accounts I have heard about

the bowling alleyfood, you may wish to eat priorto attending.

..

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TECH TIDBIT

By Andy Prevelig

Haynes manualsare veryuseful,beingbased on com-plete tear-downs ap.drebuilds;but sometimesan impor-tant aspect can be omitted. For instance:When tryingto diagnose a clutch problem where pushing the clutchpedal to the floor did not allow shifting,I turned to theHaynes manuals clutch diagnostic section. Three possi-bilitieswere listedunder "Difficultyindisengagingclutchfor gearchange":

Fault in master cylinder or slave cylinder- Air in hydraulic system

Driven plate hub splinesrusted on shaft

What the manual did not list was the possibilityof aclogged vent cap on the master cylinder. Simply re-moving the cap and testing the clutch proved this wasthe problem, creating a vacuum which prevented the

-~ hydraulics from working. The-clutch sections in boththe MGB and Spitfiremanualsdo not mention this pos-sibility,but focus on internal repairs t() the cylinders.

It's great to have workshop manuals to refer to, butalso use common sense in your diagnosis, checkingthesimplest things first.

C a I end a r 0 f Eve ot s

British Car Classic Mark XIOctober 23, 1999Jacksonville,FL

Hosted by MG ClassicsofJacksonville Car Club

Details: Chris Waage, (904)285-4998

Southeastern Region VTROctob~r 27 - October 31, 1999

Lake City,FLDetails: ArtKelly (904) 446-9990

2 all1talwqtlt alabltt l\ugu.6t. 1!J!t!J

Temple Time Machine:

EnginesPART I By Andy Prevelig

Automobile engines have come a long way sincethe first attempts to create a self-propelled vehicle.The following are some brief highlightsin the devel-opment of what we know today as the modem auto-motive engine.

This begins over 200 years ago with James Watt's(perhaps an ancestor of Brian's?)patent for a steam-driven carriage in 1784,although a practicalworkingmodel was never built.

A year later, John Fitch built a steam-poweredboat, and the next year he organized a company tobuild steam engines. He even built a pre-productionmodel of a steam-powered road machine, but diedbefore producing a full-scalevehicle.

Oliver Evans patented a steam engine for landvehicles in 1787 and five years later petitioned theAmerican government, unsuccessfully,for a patenton a reciprocating engine plus a rotating engine.

r

In 1797Richard Trevithick

began work on a high-pressuresteam engine in England. De-spite powerful opposition fromJames Watt, who thought theengine was "publiclyhazardous",Trevithickbuilt his steam carriage .,'-'

and demonstrated it publicly Trevithick'sEngineon ChristmasEve, 1801. It carried several people

traveling uphillat about 6 milesper hour and on levelroad at 9 miles per hour. During another run a fewdays later, James Watt's protests were validated whenthe boiler caught fire and destroyed the carriage. Thenext year he exhibited an improved steam carriage,driving it safely around London, but his funding ranout and the engine design was sold.

In Switzerlandin 1807, Isaac de Rivas patented astreet trolleypoweredby a crudegasolineenginewhichcould drive short distances. It was difficultto drivebecause its exhaust valve had to be manually oper-ated!

In 1825, Thomas Blanchard built one of the firstoperable steam carriages in America. It was able todrive foward and reverse, steer and climb hills. Thenext year,SamuelBrown patented a "gasandvacuum"enginewhich was able to climbShooter's Hill, a radi-cally steep incline outside of London. It was, how-ever, too expensiveto operate commerciallyand wasnot developed further.

Goldsworthy Gurney invented a steam carriagein 1829 which he drove from London to Bath. Al-

though there were several breakdowns on the trip, itmarked the first long-distance journey by a self-pro-pelled road vehicle.

In 1844, New Yorker Stuart Perry constructed aninternal compustion engine fueled by turpentine. Itwas a two-cycle engine. A gasolinefueled enginewaspatented in Italy by Eugenio Barsanti and FeliceMatteucci in 1853,but no practical operating versionwas ever constructed.

In Vienna, SiegfriedMarcus built a one-cylinderengine in 1864 that incorporated a crude carburetorand a magneto arrangement to create successivesmallexplosionsthat appliedalternatingpressure againstthepiston insidethe cylinder. Boltinghis engineto a cart,Siegfriedgearedthe pistonto the rear wheels. A strongassistant lifted the rear end of the cart off the groundand Siegfriedstarted the engine. Thewheels began to

Wl1t WtUtJdt Wabltt AtqJwrt, 1999 3

turn andcontinuedto turn with each successive"pop".Marcus signaledthe assistant to lower the cart and itburped along for about 500 feet before it ran out offuel. Tenyears later he built a new improvedversion,but then mysteriouslyquit trying to develop it, sayingit was a waste of time. That second model is in anAustrianmuseumtoday. It was refurbishedand takenfor a test run in 1950when it reached a top speed of10 mph.

Carl Benz and Gottlich Daimlerworked separately(at almostthe sametime) in Germany,each designingand building the first commercially successful cars.Benz's first creation was not very impressive,neitherin design nor at its road test. It was a ftagile, car-riage-like three-wheeler with tube ftamework hold-ing the one horsepower, one-cylinder engine. Theengine was a refinement of the four-stroke enginedesigned by Nikolaus Otto, who in turn refined hisftom Lenoir'stwo-stroke invention. AlthoughBenz's1886 creation was awkward and ftail, it did incorpo-rate several essential elements that still are found inmodem vehicles: electrical ignition,differential,me-chanicalvalves,carburetor,enginecoolingsystemandoil and grease cups for lubrication.

About 75 miles ftom Benz, Daimler worked onhis own version of the gasoline engine. He mountedhis engine on a sturdy bicycle ftame and made a se-ries of successful test runs in 1885..the prototype ofthe motrcycle. In 1887, encouraged by his motor-bike success, he install~dthe engine in a four-wheel,two-passenger vehicle. His engine had only a fewmore horsepower than Benz's, but the vehicle wasmuch lighter and ran at a much higher speed--- 900rpm, as compared to Benz's 300 rpm.

In 1892 the Parisian carriage firm ofPanhard andLevassor built what is now considered to be the trueprototype of the layout of the modem automobile: itused a Daimlerengine located at the ftont, a gearbox

behind it, transmitting power to the rear wheels.

An early Daimler one-cylinder engine

The four-stroke enginedesignwas dominantas moreinventorstried improving,ifnot the design,then at leastthe horsepower. The first popular car in Americawasthe Oldsmobile"Roadster"with three horsepower. In19Q3Ford brought out the_firstMo"delA, with eighthorsepower in two-cylinder form, then a four-cylinderversion the next year. But more horsepower did notalways ensure commercial success: In 1906 Ford in-troduced the Model K which had a six-cylinderengineproducing 40 horsepower and a top speed of 60 mph.It was, however, too expensiveto build, and at $2,000more than the price of a Cadillac,Ford lost money oneach one sold. That lesson was what inspired him toinstead produce the 20 horsepower Model T.

In 1909severalinventorstried to designa self-starterfor the gasoline engine, includingone starter drivenbycompressed air, but none were successful until 1912when SamuelKettering ftom Ohio developedthe elec-tric starter in much the same design we use today.

In Part II we will examine the design of somecritical engine components such as valves, cams andcombustion chambers.~

4 U!4t U!mqdt U!ahltt ktgu.st. 1999

Classified AdsAds are free to members and $15.00 for non-members (in-

cludes membership). NOTE: Ads will run for six months andthen be deleted unless you contact the editor to renew them.

-'""

Wanted: SCCA-approved roll bar to fit Triumph Spitfire.Must be reasonably priced. Call Andy at (850) 878-6460 orE-mail toaprev@tdo.infi.net.

:-

Moving Sale: Twovisible gas pumps: 1920-30, one restored- $1,495.00, one unrestored - $850.00. Parts washer, neverused - $75.00.Enginestand- $75.00.Ramps- $8.00.Creeper- $5.00. MIG welder,new,in box - price negotiable. CallCharlesG. Smithat (770)518-8659

For Sale: 1977MGB. 84,000 miles. Runs good, needs little.Call Terry Hughes at (850) 566-4007

For Sale: 1975 MGB (rubber bumper) in good shape. Newtires, paint, top. $2,500. Call Jody Miller at (850) 562-7472.

For Sale: 1958 TR-3 for restoration. No rust above floors.Price reflects new parts purchased. $2,500. Call TommyAdams evenings at (912) 377-6307.

FREE: MGB-18GBenaine block w/internals. Nohead. Con-I::r f"

dition of crank, etc.unknown. May make great anchor! Free.Call Obin Hamrick '(850) 878-8453.'

For Sale: 1971 TR-6. Red wlblack top. Overdrive. Goodcondition, needs minor interior work. Asking $5,400. CallChris Tober (850) 656~8576.

For Sale: 1977 MGB roadster. Red. Topand interior okay.Does not run.Asking $500.00. Call David Humphreys (850) 222-8622.

For Sale: 1976TR-6. Immaculate paint job. Interior assem-bly needed. Engine needs work. Great restoration project.$3,500.00. Call Jeff (850) 681-3993.

For Sale: 1977 Spitfire. Red. Fair body. Runs good.' Needsclutch pressure plate. $500.00. Call Brandon Ashby (850)577-0454.

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AUTO -CROSS

ACROSS1 Electrical condensor9 Cure10 Prima Donna11 Sea bird12 Like a C B DeMill movie13 Go to the polls14 Helper15 Small bills19 It has a rowel on it22 Long-bodied car (slang)23 Italian coin24 Protection25 Of the ear26 Reversion to an ancestral

type

By Andy Prevelig

6 7 8

DOWN1 "Bowtie" automobile2 prefix for dynamic3 Breathe heavily4 Awayfrom windward5 Brainstorm6 Wigwam (variant)7 Roman poet8 SCCA venue16 Near (old English)17 Moslem bigwig18 Not very good

. 19 Sloppyperson20 Century plant fiber21 Type of acid

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answers to last

months puzzle

1 12 13 14

'9-11

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