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Thread: T, 2T, 2T-B, 2T-C & 2T-G Specifications & Diagrams

  1. #1
    Toymods Net Nazi Too Much Toyota river's Avatar
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    Default T, 2T, 2T-B, 2T-C & 2T-G Specifications & Diagrams

    Hi,

    Finally, the diagrams have been added!!!! (10:37pm, 13/02/2007)

    Saw a post about the 18RG info and it mentioned a request for info on the T series. Here's info on the T engines for the "2" range. Sorry, I don't have 3T specs. The following specs are for the 1973/74 version - which means it's the carby ones. Sorry, I don't have EFI information. Hope the following is of help or interest to you.

    I have included exploded views of the various T & 2T engines in this thread, This thread should contain enough information to allow you to identify parts of your engine, help assembly/disassembly and tuning.

    All are welcome to enter their technical input to this thread.

    Drive Belt Tension
    Fan Belt => 8 - 10mm with 10kg force
    Air Pump Belt => 10 - 15mm with 10kg force
    Air Cond Belt => 11 - 14mm with 10kg force

    Battery
    1.25 at 20Deg Cels

    Coolant Capacity
    Approx 6.5 litres

    Engine Oil Capacity
    Crankcase => approx 2.8 litres
    Total => 3.7 lites; 3.8 litres for the 2T-G

    Distributor Point Gap
    0.4 - 0.5mm

    Distributor Condenser Capacity
    0.20 - 0.25uF

    Ignition Timing BTDC
    T, 2T => 10 deg
    2T-B => 12 deg
    2T-C => 5 deg (10 deg for 1974 Californian model)
    2T-G => 16 deg (5 deg from April 1973)

    Idle Speed
    T, 2T => 600 - 750 rpm for Manual in Neutral
    => 600 - 700 rpm for Auto in Drive
    => 850 - 1000 rpm for Auto in Neutral
    2T-B => 700 - 800 rpm (same for all)
    2T-C => 700 rpm for Manual in Neutral (750 rpm from April 1973)
    => 650 rpm for Auto in Drive
    => 800 rpm for Auto in Manual
    2T-G => 850 - 950 rpm (same for all) (950 - 1050 rpm from April 1973)

    Manifold vacuum at idle speed (in mmHg)
    T, 2T, 2T-B => 430 for Manual
    => 430 for Auto (360 from April 1973)
    2T-C => 430 for Manual (400 from April 1973)
    => 430 for Auto (400 fromApril 1973)
    2T-G => 400 for Manual
    => 400 for Auto

    Spark Plug Gap
    0.7 - 0.8mm
    1.0mm for W16EX and BP5EZ plugs

    Valve Clearance - Intake Cold
    T, 2T, 2T-B, 2T-C => 0.18mm
    2T-G => 0.29 - 0.34mm (0.26 - 0.32 mm from April 1973)

    Valve Clearance - Intake Hot
    T, 2T, 2T-B, 2T-C => 0.20mm
    2T-G => 0.29 - 0.34mm (0.26 - 0.32 mm from April 1973)

    Valve Clearance - Exhaust Cold
    T, 2T, 2T-B, 2T-C => 0.30mm
    2T-G => 0.34 - 0.39mm (0.31 - 0.37 mm from April 1973)

    Valve Clearance - Exhaust Hot
    T, 2T, 2T-B, 2T-C => 0.33mm
    2T-G => 0.34 - 0.39mm (0.31 - 0.37 mm from April 1973)

    Compression Pressure at 250rpm (lb/sq inch) [Specified/Limit/Difference per Cylinder]
    T => 163.5 / 127.9 / less than 14.2
    2T => 170.6 / 127.9 / less than 14.2
    2T-B => 182.0 / 142.2 / less than 14.2
    2T-C => 149.3 / 127.9 / less than 14.2
    2T-C => 170.6 / 142.2 / less than 14.2 (Californian 1974 model)
    2T-G => 184.9 / 163.5 / less than 14.2

    Phweewww.... I got a lot more, including head warpage limits, valve sizes and clearance and everything you need to know. Let me know if you want more info.

    However, some of you are probably wondering what the difference is between these various engines. Well, read on and find solace......

    T Engine
    4cyl in-line water cooled, OHV
    Bore & Stroke => 80mm x 70mm (1407cc)
    Compression Ratio => 8.5:1
    Ouput => 93hp @ 6000rpm (SAE gross)
    Torque => 91ft/lb @ 3800rpm
    Compression Rings => 2
    Oil Rings => 1
    Intake Valve Opens (BTDC) => 16 deg (19 deg from April 1973)
    Intake Valve Closes (ABDC) => 54 deg (45 deg from April 1973)
    Exhaust Valve Opens (BBDC) => 58 deg (60 deg from April 1973)
    Exhaust Valve Closes (ATDC) => 12 deg (10 deg from April 1973)
    Firing Order => 1-3-4-2
    Ignition Timing => 10 deg/600rpm (10 deg/800rpm from April 1973)
    Carburettor => 1 down draught 2 barrel

    2T Engine
    4cyl in-line water cooled, OHV
    Bore & Stroke => 85mm x 70mm (1588cc)
    Compression Ratio => 8.5:1
    Ouput => 102hp @ 6000rpm (SAE gross)
    Torque => 101ft/lb @ 3800rpm
    Compression Rings => 2
    Oil Rings => 1
    Intake Valve Opens (BTDC) => 16 deg
    Intake Valve Closes (ABDC) => 54 deg
    Exhaust Valve Opens (BBDC) => 58 deg
    Exhaust Valve Closes (ATDC) => 12 deg
    Firing Order => 1-3-4-2
    Ignition Timing => 10 deg/600rpm (10deg/800rpm for Manual; 10deg/950rpm for Auto from April 1973)
    Carburettor => 1 down draught 2 barrel

    2T-B Engine
    4cyl in-line water cooled, OHV
    Bore & Stroke => 85mm x 70mm (1588cc)
    Compression Ratio => 9.4:1
    Ouput => 113hp @ 6000rpm (SAE gross)
    Torque => 109t/lb @ 3800rpm
    Compression Rings => 2
    Oil Rings => 1
    Intake Valve Opens (BTDC) => 16 deg
    Intake Valve Closes (ABDC) => 54 deg
    Exhaust Valve Opens (BBDC) => 58 deg
    Exhaust Valve Closes (ATDC) => 12 deg
    Firing Order => 1-3-4-2
    Ignition Timing => 10 deg/700rpm (10 deg/800rpm from April 1973)
    Carburettor =>2 down draught 2 barrel

    2T-C Engine
    4cyl in-line water cooled, OHV
    Bore & Stroke => 85mm x 70mm (1407cc)
    Compression Ratio => 8.5:1 (9.0:1 1974 Californian model)
    Ouput => 102hp @ 6000rpm (SAE gross)
    Torque => 101ft/lb @ 3800rpm
    Compression Rings => 2
    Oil Rings => 1
    Intake Valve Opens (BTDC) => 16 deg (19 deg 1974 Californian model)
    Intake Valve Closes (ABDC) => 54 deg (54 deg 1974 Californian model)
    Exhaust Valve Opens (BBDC) => 58 deg (56 deg 1974 Californian model)
    Exhaust Valve Closes (ATDC) => 12 deg (20 deg 1974 Californian model)
    Firing Order => 1-3-4-2
    Ignition Timing => Varied a bit, depending upon pre/post 1973 and Californian 1974 models
    Carburettor => 1 down draught 2 barrel

    2T-G Engine
    4cyl in-line water cooled, DOHC
    Bore & Stroke => 85mm x 70mm (1588cc)
    Compression Ratio => 9.8:1
    Ouput => 124hp @ 6400rpm (SAE gross)
    Torque => 113ft/lb @ 5200rpm
    Compression Rings => 2
    Oil Rings => 1
    Intake Valve Opens (BTDC) => 20 deg (16 deg from April 1973)
    Intake Valve Closes (ABDC) => 48 deg (60 deg from April 1973)
    Exhaust Valve Opens (BBDC) => 52 deg (60 deg from April 1973)
    Exhaust Valve Closes (ATDC) => 16 deg (16 deg from April 1973)
    Firing Order => 1-3-4-2
    Ignition Timing => 16 deg/800rpm (5 deg/1000rpm from April 1973)
    Carburettor => 2 Solex 40 PHH-3 side draught twin barrel

    Well, that's a good healthy read for you. I hope you enjoyed it.

    seeyuzz
    river
    Last edited by Joshstix; 13-02-2007 at 11:04 PM.
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  2. #2
    Aerial Superpony Domestic Engineer SeptemberSquall's Avatar
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    Default Re: T, 2T, 2T-B, 2T-C and 2T-G Specifications

    Quote Originally Posted by river
    Hi,

    T Engine

    Intake Valve Opens (BTDC) => 16 deg (19 deg from April 1973)
    Intake Valve Closes (ABDC) => 54 deg (45 deg from April 1973)
    Exhaust Valve Opens (BBDC) => 58 deg (60 deg from April 1973)
    Exhaust Valve Closes (ATDC) => 12 deg (10 deg from April 1973)


    2T Engine

    Intake Valve Opens (BTDC) => 16 deg
    Intake Valve Closes (ABDC) => 54 deg
    Exhaust Valve Opens (BBDC) => 58 deg
    Exhaust Valve Closes (ATDC) => 12 deg


    2T-B Engine

    Intake Valve Opens (BTDC) => 16 deg
    Intake Valve Closes (ABDC) => 54 deg
    Exhaust Valve Opens (BBDC) => 58 deg
    Exhaust Valve Closes (ATDC) => 12 deg


    2T-C Engine

    Intake Valve Opens (BTDC) => 16 deg (19 deg 1974 Californian model)
    Intake Valve Closes (ABDC) => 54 deg (54 deg 1974 Californian model)
    Exhaust Valve Opens (BBDC) => 58 deg (56 deg 1974 Californian model)
    Exhaust Valve Closes (ATDC) => 12 deg (20 deg 1974 Californian model)


    2T-G Engine
    Intake Valve Opens (BTDC) => 20 deg (16 deg from April 1973)
    Intake Valve Closes (ABDC) => 48 deg (60 deg from April 1973)
    Exhaust Valve Opens (BBDC) => 52 deg (60 deg from April 1973)
    Exhaust Valve Closes (ATDC) => 16 deg (16 deg from April 1973)
    The stated cam timing for each of the T motors above (aside from twin camshaft 2T-G) is the same. Any info on valve lift for each engine, or were the cams the same? Maybe someone with microfiches can confirm.

    EDIT: Edited to appease the user who negative repped me for quoting too much... =/
    Last edited by SeptemberSquall; 27-12-2005 at 11:23 AM.

  3. #3
    Toymods Net Nazi Too Much Toyota river's Avatar
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    Default Re: T, 2T, 2T-B, 2T-C and 2T-G Specifications

    Hi,

    Valve info, eh?

    We'll start off with camshaft info. I will include the "from April 1973" info (if it is different), but I'm not including the "1974 Californian" info, unless someone specifically asks for it.

    Camshaft Info

    T engine
    Bend Limit => 0.03mm
    Thrust Clearance (specified) => 0.07 - 0.15mm
    Thrust Clearance (limit) => 0.3mm
    Bearing Oil Clearance (specified) => 0.025 - 0.066mm
    Bearing Oil Clearance (limit) => 0.1mm
    Cam Lobe Height (Intake) => 38.36 - 38.46mm (38.85 - 38.95 from April 1973)
    Cam Lobe Height (Exhaust) => 38.25 - 38.35mm
    Cam Lift (Intake) => 6.39mm (6.28mm from April 1973)
    Cam Lift (Exhaust) => 6.42mm
    Camshaft Journal Finished Diameter (No1) => 46.459 - 46.475mm
    Camshaft Journal Finished Diameter (No2) => 46.209 - 46.225mm
    Camshaft Journal Finished Diameter (No3) => 45.959 - 45.975mm
    Camshaft Journal Finished Diameter (No4) => 45.459 - 45.475mm

    2T, 2T-B, 2T-C engines
    Bend Limit => 0.03mm
    Thrust Clearance (specified) => 0.07 - 0.15mm
    Thrust Clearance (limit) => 0.3mm
    Bearing Oil Clearance (specified) => 0.025 - 0.066mm
    Bearing Oil Clearance (limit) => 0.1mm
    Cam Lobe Height (Intake) => 38.36 - 38.46mm
    Cam Lobe Height (Exhaust) => 38.25 - 38.35mm
    Cam Lift (Intake) => 6.39mm
    Cam Lift (Exhaust) => 6.42mm
    Camshaft Journal Finished Diameter (No1) => 46.459 - 46.475mm
    Camshaft Journal Finished Diameter (No2) => 46.209 - 46.225mm
    Camshaft Journal Finished Diameter (No3) => 45.959 - 45.975mm
    Camshaft Journal Finished Diameter (No4) => 45.459 - 45.475mm

    2T-G engine
    Bend Limit => 0.02mm
    Thrust Clearance (specified) => 0.15 - 0.30mm
    Thrust Clearance (limit) => 0.4mm
    Bearing Oil Clearance (specified) => 0.030 - 0.067mm
    Bearing Oil Clearance (limit) => 0.1mm
    Cam Lobe Height (Intake) => 45.87 - 45.97mm (46.37 - 46.47 from April 1973)
    Cam Lobe Height (Exhaust) => 45.87 - 45.97mm (46.37 - 46.47 from April 1973)
    Cam Lift (Intake) => 9.82mm (10.27mm from April 1973)
    Cam Lift (Exhaust) => 9.82mm (10.27 from April 1973)
    Camshaft Journal Finished Diameter (No1) => 31.954 - 31.970mm
    Camshaft Journal Finished Diameter (No2) => 31.954 - 31.970mm
    Camshaft Journal Finished Diameter (No3) => 31.954 - 31.970mm
    Camshaft Journal Finished Diameter (No4) => 31.954 - 31.970mm

    Okay, I hope that helps. I'll post up the valve specifications next in another post so each post doesn't get too long.

    seeyuzz
    river
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  4. #4
    Toymods Net Nazi Too Much Toyota river's Avatar
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    Default Re: T, 2T, 2T-B, 2T-C and 2T-G Specifications

    Hi,

    Okey-dokey, let us now move onto valve information.

    Generic Valve Information

    T, 2T, 2T-B, 2T-C engines
    Intake valve head diameter => 41mm
    Exhaust valve head diameter => 36mm
    Intake valve overall length (specified) => 109mm
    Intake valve overall length (limit) => 108.5mm
    Exhaust valve overall length (specified) => 109mm
    Exhaust valve overall length (limit) => 108.5mm
    Valve stem diameter (Intake) => 7.97 - 7.99mm
    Valve stem diamter (Exhaust) => 7.97 - 7.98mm
    Intake valve stem-to-bushing clearance (specified) => 0.025 - 0.060mm
    Intake valve stem-to-bushing clearance (limit) => 0.08mm
    Exhaust valve stem-to-bushing clearance (specified) => 0.030 - 0.065mm
    Exhaust valve stem-to-bushing clearance (limit) => 0.10mm
    Valve head thickness (Intake) => 0.50mm
    Valve head thickness (Exhaust) => 0.70mm
    Contact Valve face angle => 45deg

    2T-G engine
    Intake valve head diameter => 43mm (44.5mm from April 1973)
    Exhaust valve head diameter => 37mm (38.5mm from April 1973)
    Intake valve overall length (specified) => 106.7mm (106.2mm from April 1973)
    Intake valve overall length (limit) => 106.2mm (105.7mm from April 1973)
    Exhaust valve overall length (specified) => 105.4mm (105mm from April 1973)
    Exhaust valve overall length (limit) => 104.9mm (104.5mm from April 1973)
    Valve stem diameter (Intake) => 8.46 - 8.48mm
    Valve stem diamter (Exhaust) => 8.45 - 8.46mm
    Intake valve stem-to-bushing clearance (specified) => 0.020 - 0.037mm
    Intake valve stem-to-bushing clearance (limit) => 0.08mm
    Exhaust valve stem-to-bushing clearance (specified) => 0.055 - 0.060mm
    Exhaust valve stem-to-bushing clearance (limit) => 0.10mm
    Valve head thickness (Intake) => 0.50mm
    Valve head thickness (Exhaust) => 0.60mm
    Contact Valve face angle => 45deg


    Valve Guide Bushing Information

    T, 2T, 2T-B, 2T-C engines
    Bushing Inner diameter => 8.01 - 8.03mm
    Bushing Outer diameter (Standard) => 13.04 - 13.05mm
    Bushing Outer diameter (Oversize) => 13.09 - 13.10mm
    Bushing replacment temperature => 80deg Cels
    Bushing protruded length from cylinder head => Drive in valve guide bushing until snap ring contact with cylinder head.

    2T-G engine
    Bushing Inner diameter => 8.51 - 8.52mm
    Bushing Outer diameter (Standard) => 14.02 - 14.03mm
    Bushing Outer diameter (Oversize) => 14.07 - 14.08m
    Bushing replacment temperature => 80deg Cels
    Bushing protruded length from cylinder head => Drive in valve guide bushing until snap ring contact with cylinder head.


    Valve Spring Information

    T, 2T, 2T-B, 2T-C engines
    Free length => 42.1mm
    Installed length => 37.7mm
    Spring Installed tension (specified) => 58lb (26.3kg)
    Spring Installed tension (limit) => 53.6lb (24.3kg)
    Squareness limit => 1.9mm

    2T-G engines
    Free length => 45.6mm
    Installed length => 39.0mm
    Spring Installed tension (specified) => 77.2lb (35.0kg)
    Spring Installed tension (limit) => 65.0lb (29.5kg)
    Squareness limit => 1.6mm


    Valve Rocker Shaft Arm

    T, 2T, 2T-B, 2T-C and 2T-G engines
    Valve rocker shaft outer diameter => 15.97 - 15.99mm
    Shaft to arm oil clearance => 0.02 - 0.04mm


    Valve Lifter

    T, 2T, 2T-B, 2T-C engines
    Outer diameter (Standard) => 22.179 - 22.199mm
    Outer diameter (Oversize) => 22.229 - 22.249mm
    Oil Clearance (specified) => 0.02 - 0.03mm
    Oil Clearance (limit) => 0.10mm

    2T-G engine
    Outer diameter (Standard) => 237.925 - 37.931mm (Black)
    Outer diameter (Standard) => 37.931 - 37.937mm (Blue)
    Outer diameter (Standard) => 37.937 - 37.943mm (Yellow)
    Outer diameter (Standard) => 37.943 - 37.949mm (Red)
    Oil Clearance (specified) => 0.02 - 0.03mm
    Oil Clearance (limit) => 0.10mm

    Again, hope this helps.

    As I get time I'll put up other useful information for this series of engine; namely cylinder block and head, pistons & piston rings, crankshaft & connecting rods, timing chain & gear, and torque settings.

    seeyuzz
    river
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  5. #5
    Junior Member Backyard Mechanic Hokey's Avatar
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    Default Re: T, 2T, 2T-B, 2T-C and 2T-G Specifications

    These information threads should be made into a sticky or put in the FAQ

  6. #6
    Aerial Superpony Domestic Engineer SeptemberSquall's Avatar
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    Default Re: T, 2T, 2T-B, 2T-C and 2T-G Specifications

    Cam Lift (Intake) => 6.39mm (6.28mm from April 1973)
    Cam Lift (Exhaust) => 6.42mm
    So in all important respects the cams are the same between T, 2T, 2T-B, 2T-C.

  7. #7
    Toymods Net Nazi Too Much Toyota river's Avatar
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    Default Re: T, 2T, 2T-B, 2T-C and 2T-G Specifications

    Hi,

    Yes they are, according to the official Toyota workshop manual.

    seeyuzz
    river
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  8. #8
    Toymods Net Nazi Too Much Toyota river's Avatar
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    Default Re: T, 2T, 2T-B, 2T-C and 2T-G Specifications

    Hi,

    Alrighty then, let's keep going and put some more detailed information in for these engines.

    Engine Specified Parts Tightening Torque
    Crankshaft bearing cap to cylinder block => 7.2 - 8.8 m-kg (52.1 - 63.7 ft-lb)
    Connecting rod cap to connecting rod => 4.0 - 5.0 m-kg (28.9 - 36.3 ft-lb)
    Camshaft thrust plate to cylinder head => 1.0 - 1.6 m-kg (7.2 - 11.6 ft-lb)
    Timing chain cover to cylinder block => 1.0 - 1.6 m-kg (7.2 - 11.6 ft-lb)
    Oil pump to cylinder block => 1.7 - 2.6 m-kg (12.3 - 18.8 ft-lb)
    Chain tensioner union bolt to cylinder block (2T-G) => 1.0 -1.6 m-kg (7.2 - 11.6 ft-lb)
    Crankshaft puller to crankshaft => 4.0 - 6.0 m-kg (28.9 - 43.4 ft-lb)
    Cylinder head to cylinder block => 7.2 - 8.8 m-kg (52.1 - 63.7 ft-lb)
    Camshaft timing gear to camshaft => 7.0 - 11.0 m-kg (50.6 -79.6 ft-lb)
    Valve rocker support to cylinder head => 7.2 - 8.8 m-kg (52.1 - 63.7 lb-ft)
    Manifold to cylinder head => 1.0 - 1.6 m-kg (7.2 - 11.6 ft-lb)
    Cylinder head cover to cylinder head => 0.4 - 0.7 m-kg (2.9 - 5.1 ft-lb)
    Oil pan to cylinder block => 0.5 - 0.8 m-kg (3.6 - 5.8 ft-lb)
    Oil pan drain plug to oil pan => 3.0 - 4.0 m-kg (21.7 - 28.9 ft-lb)
    Spark plug to cylinder head => 1.5 - 2.1 m-kg (10.9 - 15.2 ft-lb)
    Flywheel to crankshaft => 5.8 - 6.6 m-kg (42.0 - 47.7 ft-lb)
    Flywheel to crankshaft (2T-G) => 7.7 - 8.3 m-kg (55.7 - 60.0 ft-lb)
    Clutch cover to flywheel => 1.5 - 2.0 m-kg (10.9 - 14.5 ft-lb)
    Clutch housing to cylinder block => 4.8 - 6.8 m-kg (34.7 - 49.2 ft-lb)


    Spark Plugs
    T, 2T, 2T-B, 2T-C => 0.7 - 0.8mm => Denso W16EP or NGK BP5ES-L
    2T-G => 1.0mm => Denso W16EX or NGK BP5EZ
    2T-G => 0.7 - 0.8mm => Denso W16EP-G

    Ignition Coil
    Primary coil resistance => 3.3 ohms
    Secondary coil resistance => 8500 ohms


    Timing Chain and Timing Gear

    T, 2T, 2T-B, 2T-C engines
    Chain deflection limit (No1) => 13.5mm with 10kg force
    Chain deflection limit (No2) => 13.5mm with 10kg force
    Vibration damper thickness limit (No 1) => 5.0mm
    Vibration damper thickness limit (No 2) => 5.0mm
    Vibration damper thickness limit (No 3) => 5.0mm
    Tensioner plunger head thickness limit => 12.5mm
    Clearance between chain tensioner No1 and chain => 0.5 - 1.0mm
    Chain tensioner No2 back stroke => 0.5 - 1.0mm
    Crankshaft timing gear wear limit => 59.4mm with chain
    Camshaft timing gear wear limit => 113.8mm with chain
    Camshaft drive gear & camshaft gear limit => 113.8mm with chain

    2T-G engine
    Chain deflection limit (No1) => 13.5mm with 10kg force
    Chain deflection limit (No2) => 75.0mm with 10kg force
    Vibration damper thickness limit (No 1) => 5.0mm
    Vibration damper thickness limit (No 2) => 5.5mm
    Vibration damper thickness limit (No 3) => 6.5mm
    Tensioner plunger head thickness limit => 7.5mm
    Clearance between chain tensioner No1 and chain => 0.5 - 1.0mm
    Chain tensioner No2 back stroke => 0.5 - 1.0mm
    Crankshaft timing gear wear limit => 60.0mm with chain
    Camshaft timing gear wear limit => 114.5mm with chain
    Camshaft drive gear & camshaft gear limit => 78.2mm with chain

    Crikey, I hope this is useful stuff? Or am I wasting my time and giving myself RSI for nothing?

    seeyuzz
    river
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    RA25GT - There is no substitute | 18R-G - Toyota's Dependable Masterpiece
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  9. #9
    I'm no Domestic Engineer Steve M's Avatar
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    Default Re: T, 2T, 2T-B, 2T-C and 2T-G Specifications

    Great to see all the info going up on the site, the only concern I have is with copywrite infringements.
    That's why I only posted a small amount of info from teh 18RG book.
    Not sure how this would effect everyone involved, but I'd rather not find out.

    I'm still giving you rep for it though
    Strong like horse, smort like tractor!
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  10. #10
    Toymods Net Nazi Too Much Toyota river's Avatar
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    Default Re: T, 2T, 2T-B, 2T-C and 2T-G Specifications

    Hi,

    Good point about the copyright. I'm not sure who would get upset by it - it's not like there's heaps of manuals and detailed documentation on these old engines being produced any more, so I'm not sure who would be (ie publisher/author) affected.

    Worse case is the forums would be approached and asked to remove the information. I doubt any further action would be taken if we obliged with this request.

    Until then I guess we keep it, but, ultimately it's the Boards decision.

    If it is removed then, from my perspective, it renders a lot of our technical information (we put into these forums) to the point of near uselessness. Conversion would be okay, but any detailed technical information would of (should of) come from some legitimate text or document, and as such, all such information would be liable to breach copyright.

    What we would be left with is heresay and personal opinions and therefore should not be in the technical area, where we seek and demand absolute accuracy and reassurance the source is reliable, official and documented.

    I've loaned my 18RG manuals to Witzl, otherwise I'd be putting down the relevant tuning specifications and details on site for this wonderful engine.

    seeyuzz
    river
    The thinking man's clown and the drinking woman's sex symbol
    RA25GT - There is no substitute | 18R-G - Toyota's Dependable Masterpiece
    Toymods Car Club Treasurer, assistant Historic Plate Registrar & Forums Admin

  11. #11
    ......... Carport Converter jeffro ra28's Avatar
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    Default Re: T, 2T, 2T-B, 2T-C and 2T-G Specifications

    Standard tunnel size limit for the conrods is 2.0076" - 2.0088"

  12. #12
    I'm no Domestic Engineer Steve M's Avatar
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    Default Re: T, 2T, 2T-B, 2T-C and 2T-G Specifications

    I think there is a 10% rule somewhere in copywrite legislation that sayd that you can replicate up to 10% or no more than 10% of the publication for education purposes.

    Seeing as this information is freely provided with the educate people, I'd hope its ok, but who knows for sure.

    Keep going I say!
    Strong like horse, smort like tractor!
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  13. #13
    Toymods Net Nazi Too Much Toyota river's Avatar
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    Default Re: T, 2T, 2T-B, 2T-C and 2T-G Specifications

    Hi,

    Okay, let's keep going...

    Clylinder Head
    Cylinder Head Warpage Limit => 0.05mm
    Gasket Thickness => 1.5mm
    Valve Seat Contacting Surface Angle => 45deg
    Valve Seat Contacting Width => 1.4mm
    Valve Seat Refacing Angle (Intake & Exhaust) = > 30deg, 45deg, 60deg

    Cylinder Block
    Cylinder Head Warpage Limit = > 0.05mm
    Valve Lift Bore Diameter (standard) => 22.200 - 22.221mm
    Valve Lift Bore Diamter (oversize) => 22.250 - 22.271mm

    Cylinder
    Inner Diameter (T engine) => 80.00 - 80.05mm
    Inner Diameter (2T, 2T-B, 2T-C & 2T-G engines) => 85.00 - 85.05mm
    Wear Limit => 0.2mm
    Horning Amount = > Less than 0.02mm
    Taper, out of round limit = > 0.02mm
    Difference of bore between cylinders = > 0.05mm

    Piston
    Piston Outer Diameter (standard) => 79.94 - 79.99mm
    Piston Outer Diameter (oversize) => 84.94 - 84.99mm
    Cylinder to Piston clearance => 0.05mm
    Piston pin installing temperature => 20deg C
    Piston ring end gap (Compression Ring No 1) => 0.2 - 0.4mm
    Piston ring end gap (Compression Ring No 2) => 0.1 - 0.3mm
    Piston ring to ring groove clearance (Compression RIng No 1) => 0.020 - 0.060mm
    Piston ring to ring groove clearance (Compression RIng No 2) => 0.015 - 0.055mm
    Piston ring diameter => 22.00 - 22.01mm

    Connecting Rod
    Connecting Rod Bend limit (per 100mm) => 0.05mm
    Connecting Rod Twist limit (per 100mm) => 0.05mm
    Big end thrust clearance => 0.16 - 0.26mm
    Big end thrust clearance limit => 0.3mm
    Bearing oil clearance => 0.024 - 0.048mm

    Crankshaft
    Bend limit => 0.03mm
    Thrust clearance => 0.07 - 0.18mm
    Thrust clearance limit => 0.3mm
    Taper and out of round limit => 0.3mm
    Journal finished diameter (standard) => 57.975 - 58.000mm
    Journal oil clearance => 0.032 - 0.056mm
    Crankpin finished diameter (standard) => 49.976 - 48.00mm
    Crankpin oil clearance => 0.024 - 0.048mm

    Flywheel
    Run-out limit => 0.1mm

    Yes, more to come.....

    seeyuzz
    river
    The thinking man's clown and the drinking woman's sex symbol
    RA25GT - There is no substitute | 18R-G - Toyota's Dependable Masterpiece
    Toymods Car Club Treasurer, assistant Historic Plate Registrar & Forums Admin

  14. #14
    I even do the dishes as Domestic Engineer Rodger's Avatar
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    Default Re: T, 2T, 2T-B, 2T-C and 2T-G Specifications

    See below.
    Last edited by Rodger; 27-12-2005 at 04:06 PM. Reason: double posted damned thing.

  15. #15
    I even do the dishes as Domestic Engineer Rodger's Avatar
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    Default Re: T, 2T, 2T-B, 2T-C and 2T-G Specifications

    Thanks river. Good work

    I agree, now that river has done the hard work we should have this as a "sticky" for all.

    I read the initial 18R-G thread and thought I would dig out my full Toyota Workshop Manual and start typing but kids/Xmas and all, slowed me up.

    Now that the info is up.

    For all who do not know what "blue printing" is all about or heard it quoted by machine shops then all the spec's listed here create the "blue print" for the motor concerned.

    Build a motor to these specs and it will be exactly as Toyota designed it.

    Shall we continue with 2T-G Solex setup details?

    And then continue with T50 gearbox specs and T series diffs from the same manual?

    Copyright is questionable, although Toyota had been aproached about copying manuals for the TA-22 back in the late seventies/early eighties when 2T-Gs were being first put into the '22. The Canberra Celica Club at the time needed a manual to prove to ACT Rego that it was a legitimate engine swap. Toyota appeared not to mind us copying pages as it was their manual as long as we quoted the source.

    Regards

    Rodger

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