C-Series Engines

[system]

##Daihatsu C-Series Engines
Please note that on a mobile device you will not see the entire tables listed in this thread

The Daihatsu C-series engine is a range of compact three-cylinder, internal combustion piston engines, designed by Daihatsu, which is a subsidiary of Toyota. The engines range from 843 to 993 cc and have been manufactured in petrol and diesel-driven series. They have cast iron engine blocks and aluminum cylinder heads, and are of either SOHC or DOHC design, with belt driven heads. The engine first appeared in the all-new Daihatsu Charade in October 1977, in “CB20” form.

Most common is the 1-liter CB, which was also available as the diesel CL. There is an 843 cc version called the CD and the extremely rare 926 cc homologation special called the CE.

(CB-80 Turbo)

(CB-60 Turbo)

(CB-23)

(CL-50 Turbo Diesel)

##CB-Series (993cc)
The 993 cc (1.0 L; 60.6 cu in) CB engine appeared in October 1977, for the then-new Daihatsu Charade. It features 120 degree crank throws and a counter-rotating balance shaft. Bore and stroke are 76.0 mm (2.99 in) and 73.0 mm (2.87 in) respectively. It also incorporated mother concern Toyota’s lean-burn design to run cleaner.

It was also fitted to the Daihatsu Hijet, sometimes referred to as the “Daihatsu 1000” when equipped with this engine. It was fitted to the S70/75/76 and S85 models. Italy’s Innocenti also used this engine for many variants of their Minitre/990/Small range of cars. De Tomaso was also the first to turbocharge this type of engine, first for a Daihatsu show car and later for the Innocenti Turbo deTomaso.

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###Engine Varients (CB)

Varient	Layout	Induction	KW	@RPM	NM	@RPM	Comp	Fuel System	Chassis
CB-10	6V SOHC	NA	40	5500	77	2800	8.7	Carb	G10 Charade (1980-1983)
CB-11	6V SOHC	NA	40	5500	76.5	2800	9.1	Carb	G10 Charade (1980-1983)
CB-12	6V SOHC	NA	40	5500	76.5	2800	9.5	Carb	G11 Charade
CB-20	6V SOHC	NA	37	5500	73	3000	8.7	Carb	G10 Charade
CB-20	6V SOHC	NA	38	5600	75	3200	9	Carb	G10 Charade
CB-22	6V SOHC	NA	44	5600	81	3200	9.5	Carb	G11v Charade
CB-23	6V SOHC	NA	38	5600	75	3200	9.5	Carb	G100 Charade
CB-24	6V SOHC	NA	38	?	75		9.5	Carb	G202 (1993-1996)
CB-31	6V SOHC	NA	44	5600	80	3200	9.1	Carb	G10 Charade (1979-1980)
CB-32	6V SOHC	NA	44	5600	81	3200	9.1	Carb	G10 Charade (1980-1983)
CB-33	6V SOHC	NA	44	5600	81	3200	9.5	Carb	G11 Charade
CB-34	6V SOHC	NA	40	5500	76.5	2800	9.5	Elec Carb	G11 Charade (CF - 1983-1985)
CB-35	6V SOHC	NA	40	5500	76.5	2800	9.5	Elec Carb	G11 Charade (CX - 1985-1987)
CB-36	6V SOHC	NA	37	5600	75	3200	9.5	Carb	G100 Charade
CB-37	6V SOHC	NA	40	5600	78	3600	9.5	Carb	G100 Charade
CB-41	6V SOHC - Hoizontal Mount	NA	32	5200	72.6	3200	8.7/9.0/9.1	Carb	S75/76 (Hijet 1983-1986), S86 (Hijet 1968-1988), S85 (Hijet 1993-1997)
CB-41	6V SOHC - Hoizontal Mount	NA	33	5200	74	2400	8.7/9.0/9.1	Carb	S75/76 (Hijet 1983-1986), S86 (Hijet 1968-1988), S85 (Hijet 1993-1997)
CB-42	6V SOHC - Hoizontal Mount	NA	35	?	?	?	9.5	EFI	S86 (Hijet 1994-1998)
CB-50	6V SOHC	Turbo	59	5500	87	3500	8	Carb	G11 Charade (DeTomaso 1983-1987)
CB-51	6V SOHC	Turbo	54	5600	80	3600	8	Carb	G100 Charade (1987-1988)
CB-60	6V SOHC	Turbo	50	5500	78	3200	8	Carb	G11 Charade Turbo (Turbo DeTomaso)
CB-61	6V SOHC	Turbo	50	5500	78	3200	8	Carb	G100 Charade Turbo
CB-70	12V DOHC	Turbo	77	6500	96	3500	7.8	EFI	GTTi Charade (1987-1993)
CB-80	12V DOHC	Turbo	74	6500	96	3500	7.8	EFI	GTTi Charade (G100)
CB-90	6V SOHC	NA	40	5750	59	3000	9.5	EFI	G100 Charade (1987-1993)
CB-90	6V SOHC	NA	40	5200	58	3600	9.5	EFI	G100 Charade (1989-1992)

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###ECU Models

Varient	ECU Number	Chassis
CB-42	?	?
CB-70	?	?
CB-80	?	?
CB-90	?	?
CB-90	?	?

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###Service Details

Varient	Oil Filter	Spark Plug	Air Filter	Fuel Filter	Spark Gap	Timing
CB-11	?	?	?	?	?	?
CB-12	?	?	?	?	?	?
CB-20	?	?	?	?	?	?
CB-20	?	?	?	?	?	?
CB-22	?	?	?	?	?	?
CB-23	?	?	?	?	?	?
CB-24	?	?	?	?	?	?
CB-31	?	?	?	?	?	?
CB-32	?	?	?	?	?	?
CB-33	?	?	?	?	?	?
CB-34	?	?	?	?	?	?
CB-35	?	?	?	?	?	?
CB-36	?	?	?	?	?	?
CB-37	?	?	?	?	?	?
CB-41	?	?	?	?	?	?
CB-41	?	?	?	?	?	?
CB-42	?	?	?	?	?	?
CB-50	?	?	?	?	?	?
CB-51	?	?	?	?	?	?
CB-60	?	?	?	?	?	?
CB-61	?	?	?	?	?	?
CB-70	?	?	?	?	?	?
CB-80	?	?	?	?	?	?
CB-90	?	?	?	?	?	?
CB-90	?	?	?	?	?	?

---

###CD (843 cc)
The 843 cc CD engine was usually fitted in export market Daihatsu Hijets (also known as the “Daihatsu 850”). Bore and stroke are 70.0 mm (2.76 in) and 73.0 mm (2.87 in) respectively. Chile (and possibly other markets) also received this engine in the Daihatsu Charade, called the “G20” or “G21” when thus equipped.

###CL (993 cc diesel)
The turbodiesel CL50 engine
The diesel version of the CB shares that engine’s dimensions, for 993 cc (1.0 L; 60.6 cu in). It appeared in 1983, along with the second generation of the Daihatsu Charade. There was also the CL50, a turbocharged version producing 50 PS (37 kW).

Original Source: https://en.wikipedia.org/wiki/Daihatsu_C-series_engine

[darkaxi0m]

Could be my old age… but the photo of the CB-23 is an EFI yeah?
Didn’t know the CB-23 came with EFI, thought it was only CB-70s and up?

[Mokeman]

could be the USA only version called a CB90, basically a cb233 with efi because of the anti pollution laws

[FrAsErTaG]

@darkaxi0m the benifet of the wiki, anyone can edit it and make changes

[DaleJeffree]

Got this from Nathan Munns website. His website is closing this year.

This is CB80 related.

Specifications and Data

Commonly requested information is highlighted in Bold

Engine: CB-80 (worldwide market designation, Mostly non-Catalyst but a few countries had Catalyst version),

        CB-70 (JDM market, All Catalyst)

993cc.

Bore 76.00mm, (Wear limit 76.03mm)

Stroke 73.00mm

Compression Ratio 7.8:1

Cast iron block - Height 206mm .

Bore taper limit 0.10mm

Block Deck Surface max distortion 0.10mm

4x Main bearings, 52.000mm - 52.010mm main bearing housing.

Crankshaft Thrust Clearance 0.02 - 0.22mm (limit 0.30mm)

Crankshaft Width between thrust washer contact surfaces 23.130mm - 23.000mm

Crankshaft thrust washer thickness 1.990mm - 1.940mm

Crankshaft Width between crankpins 25.20mm - 25.00mm

Crankshaft maximum runout 0.06mm

Crankshaft Main bearing Journal 47.992mm, wear limit 47.962mm

Main Bearing oil clearance 0.020 - 0.070mm

Crankshaft Conrod journal 42.992mm, limit 42.962mm

Conrod Big end housing 46.000mm - 46.010mm

(vital to check this size and roundness if you have had a big end bearing failure)

Conrod bearing oil clearance 0.024mm - 0.070mm

Conrod centre to centre length 125.00mm

Conrod small end for piston pin 19.00mm

Conrod small end width 22.00mm

Conrod Big end width 24.80mm - 24.85mm

Conrod Thrust clearance 0.15mm - 0.45mm

Conrod Weight 572g

Pistons. Flat top crown, semi forged (high pressure cast) with 1mm deep indents for inlet valves.

Compression height 31.00mm

Piston to Cylinder clearance 0.030 - 0.065mm (limit 0.12mm)

Piston Rings, 1st ring 1.5mm thick x 2.9mm depth, 2nd 1.5mm x 3.15mm, Oil 2.8mm x 2.6mm

Ring gaps, 1st ring 0.35 - 0.45mm (limit 0.70), 2nd 0.28 - 0.40 (limit 0.70), Oil 0.20 - 0.70 (limit 1.1mm)

Side clearance 1st 0.05mm - 0.09mm, 2nd 0.02mm- 0.06mm, Oil 0.01 - 0.03mm

Piston Pin 19.00mm. Oil clearance piston pin to piston 0.03mm maximum

Flywheel weight 6.4kg

Flywheel step height (clutch cover mounting surface to flywheel friction surface) 23mm

Flywheel dimple for Ignition timing , 10 BTDC

Engine Valves.

Inlet 107.0 length (limit 106.2mm), 30mm diameter. Stem 6.0mm

Exhaust 107.2 length (limit 106.4mm), 26mm diameter, Stem 6.0mm

Valve seat recession. Inlet 4.23mm maximum, Exhaust 5.30mm maximum

Valve face seat angle 45.5 degrees.

Valve head minimum thickness. Inlet 0.7mm, Exhaust 0.8mm

Valve guide to valve stem oil clearance. Inlet 0.025mm - 0.08mm, Exhaust 0.030mm - 0.09mm

Cylinder Head height 119.00mm (useful to check how much a head has been previously skimmed)

Head Surface maximum distortion 0.10mm

Cylinder Head gasket - Composite graphite with steel firing rings 1.25mm thickness

Timing belt 1240mm length, 155 teeth, 19mm width, 8.0mm teeth pitch.

Number of belt teeth between pulley timing marks:

Inlet camshaft pulley to exhaust pulley, 44 teeth

Exhaust pulley to crankshaft pulley , 51 teeth

Crankshaft pulley to inlet camshaft, 60 teeth

Camshaft Journals 28.00mm

Camshaft bearing oil clearance 0.025mm - 0.066mm (Limit 0.16)

Camshaft Thrust clearance, 0.20mm maximum

Camshaft lift Inlet 7.60mm

Camshaft lift Exhaust 7.20mm

Camshaft Lobe height inlet 39.65mm - 39.55mm (limit 39.40mm)

Camshaft lobe height exhaust 39.25mm - 39.15mm (limit 39.00mm)

Camshaft Runout 0.03mm maximum

Valve adjusting shims 25.00mm diameter (some motorbikes also use this size)

Valve lifter 29.985mm - 29.975mm width

Valve lifter oil clearance 0.015mm - 0.046mm (limit 0.070mm)

Valve clearances for COLD engine adjustment setting (example cylinder head rebuild)

Inlet. 0.16-0.17mm

Exhaust 0.21-0.22mm

Valve clearances, checking when HOT operating temperature, (coolant temp minimum 80c)

Inlet 0.27mm (0.22 - 0.32 acceptable)

Exhaust 0.32mm (0.27 - 0.37 acceptable)

Valve springs 45.9mm height, 21.1mm width. Length when fitted 35.0mm, load 23kg.

Spring constant 2.1/2.72 kgf/mm

Turbocharger IHI RHB51 , model VQ10 1987-1989, VQ17 (Coolant cooled 1989-1993)

Compressor wheel 5/5 blades. Inducer 31.5mm, Exducer 51mm

Turbine wheel 9 blades. Inducer 50.4mm, Exducer 35mm

Turbine housing A/R P12

Wastegate actuator starts moving 7-8psi

Boost pressure (solenoid controlled) 10.3 - 10.7 psi (0.71 - 0.73 bar)

Safety overboost cutout 12.7 - 13.1psi (0.87 - 0.9 bar) if exceeded for 0.8 second

Dashboard Boost indicator light on at 4 psi

Fuel injectors - DENSO 195500-1610

295cc measured at GTti 2.55bar fuel pressure. (320cc at industry standard 3 bar)

High Impedance 12.5 - 13.5ohm

Batch Firing.

Throttle body diameter 35mm (measured behind butterfly)

Clutch friction disc 180mm outer, 125mm inner. Woven Organic.

Made by Daikin-Exedy.

6 hub springs.

Friction disc thickness 3.0mm (flywheel side), 3.2mm (Pressure cover side),

Marcel spring metal thickness 0.55-0.65mm

Clutch disc thickness uncompressed 7.4 - 7.7mm

Disc thickness when fitted (marcel spring fully compressed flat) 6.8 - 7.0mm

Wear limit of friction, 0.3mm above rivets

Friction disc weight, 0.72kg

Clutch Pressure Cover factory fitted made by Daikin-Exedy.

Clamp load as fitted new 310kg.

Raising to peak of approx 380kg at optimum wear point.

Clutch cover weight 2.05kg

Flywheel weight 6.4kg

Spark plug cables, standard type HT cable - 7mm resistive carbon core.

Spark plugs. Twin ground electrodes for longer service life. Factory fit was Denso W20ETRL .

Gap is preset at 0.9 - 1.0mm and can’t easily be adjusted.

(CB70 Denso W20ETL same but non resistor)

NGK equivalent BPR6EKN (these have a 0.8mm gap)

Cooler heat range plug Denso W22ETRL, NGK BPR7EKN

Replace 15,000 miles

Modern Iridium type spark plug upgrades…30,000 miles life

NGK - BPR6EIX

NGK - BPR7EIX

Denso IridiumTT - IW20TT (Very long life)

Denso Iridium Power - IW20

Denso Iridium Power -IW22

Conventional electrode type plugs also work perfectly OK and are cheap, but best replace every 6000-8000 miles.

NGK BP6ES, BP7ES (non resistor) or BPR6ES, BPR7ES (resistor)

Engine oil.

Use any modern quality latest rated API/ACEA. Fully synthetic or semi synthetic prefered but not essential if changes are regular.

Recommended oil grades 0w 40, 5w 40, 10w 40, 5w 50, 10w 50.

Total Capacity 3.3 litres, Oil change without changing filter 2.7 litres, With filter 3.1 litres.

NEVER ALLOW OIL LEVEL TO DROP DOWN FROM FULL ON DIPSTICK. ALWAYS KEEP IT FULL.

BIG END BEARING FAILURE SEEMS MORE COMMON WHEN OIL LEVEL HAS BEEN ALLOWED TO DROP, EVEN HALFWAY ON DIPSTICK IS RISKY.

Gearbox oil. 75w 85 or 75w 90. GL4 or synthetic GL4/5

Capacity 2.1 - 2.2 litres

Brake fluid. DOT 4, Super DOT 4

[evilhighway]

I hope you let him know he is welcome to put any info in here he would like to share and keep