| specifications for the 1098cc engine | |||||||||||||
| engine number prefix | |||||||||||||
| for identifying other1098 engine numbers go to | |||||||||||||
| Engine Type 1098cc (1100) | DOME type welch plugs x 4 (S) cam follower covers | ||||||||||||
| Bore | 2.542' | ||||||||||||
| Stroke | |||||||||||||
| capacity of combustion chamber | |||||||||||||
| b.m.e.p. | |||||||||||||
| Bhp | |||||||||||||
| Torque | |||||||||||||
| Fuel System | leaded | ||||||||||||
| Compression Ratio | 8.3:1 in aust | ||||||||||||
| Firing Order | 1 3 4 2 | ||||||||||||
| Valve Clearance (Inlet) | .012" thou hot | ||||||||||||
| Valve Clearance (Exhaust) | .012" thou hot | ||||||||||||
| Cylinder Head Tension | 42 ft/lb * | ||||||||||||
| Conrod Bolt Tension | 35 ft/lb | ||||||||||||
| Main Bearing Tension | 60 ft/lb | ||||||||||||
| Crankshaft Pulley Tension | 70 ft/lb | ||||||||||||
| Flywheel Tension | 150 ft/lb | ||||||||||||
| Points Gap | .015" | ||||||||||||
| Dwell Angle in degrees | 60 + or - 5 | ||||||||||||
| Spark Plug Type / Gap | bp5es ngk w8dc bosch .025" | ||||||||||||
| Ignition Timing ( max total mech #30)distributor mechani | 0-10 degrees BTDC (depends on fuel/comp ratio and distributor curve) | ||||||||||||
| CO % (at idle) | 3% | ||||||||||||
| Oil Capacity | 5 litres incl filter | ||||||||||||
| Oil Filter (Industry Number) | early R2180p mid R2200p screw on z418 | ||||||||||||
| Oil Type / Grade | 20w/50 sg | ||||||||||||
| Recommended Service Interval | 3000 miles/ 5000 km | ||||||||||||
| Crankshaft main journal dia | 1.7505"-1.751" (44.46mm-44.47mm) | ||||||||||||
| Main bearings running clearance | .001"-.0027" | ||||||||||||
| Connecting rods little end size | .625" | ||||||||||||
| Gudgeon pin circlip fully floating | hand push fit | ||||||||||||
| Piston rings | width comps..062"" x 3 oil .125" end gaps on comp .008"-.015" aust pistons .156' oil | Valves | inlet head dia 1.219" exhaust 1.000" | ||||||||||
| Cam timing using .019" tappet clearance | inlet opens 5# btdc inlet closes 45#abdc | ||||||||||||
| exhaust opens 51# bbdc exh closes 21#atdc | |||||||||||||
| Valve springs free length | inner1.672" outer 1.750" | ||||||||||||
| Oil pressure normal running | 70 lb/in (4.92 kg/cm2 | ||||||||||||
| carburettor needle 1-1/4" su | |||||||||||||
| Gearbox ratios standard ratio | |||||||||||||
| helical gears top 1.0:1 | |||||||||||||
| third 1.357:1 | |||||||||||||
| second 1.916:1 | |||||||||||||
| first 3.200:1 | |||||||||||||
| reverse 3.200:1 | |||||||||||||
| Overall gear ratios with 3.765 standard final drive ratio | |||||||||||||
| top 3.765 | |||||||||||||
| third 5.109 | |||||||||||||
| second 7.213 | |||||||||||||
| first/reverse 12.047:1 | |||||||||||||
| Optional diff ratios | 3.938:1 4.133:1 4.267:1 3.44:1 | ||||||||||||
