Mazda Pick-Ups 1972-93 B1600, B1800 and B2000 (With Timing Chain)

B1600, B1800 and B2000 4 Cyl Engines (With Timing Chains)
Components				Torque
Camshaft Sprocket Nut				51-58 ft. lbs.
Crankshaft pulley-to-Crankshaft bolt				101-108 ft. lbs.
cylinder head bolts	b1600 and b1800		cold engine (Initial)	56-60 ft. lbs.
	b1600 and b1800		warm engine (Final)	69-72 ft. lbs.
	b2000		cold engine (Initial)	65-69 ft. lbs.
	b2000		warm engine (Final)	69-72 ft. lbs.
distributor drive gear nut				51-58 ft. lbs.
exhaust manifold nuts/Bolts		b1600 and b1800		12-17 ft. lbs.
exhaust manifold nuts/Bolts		b2000		16-21 ft. lbs.
flywheel bolts				112-118 ft. lbs.
intake manifold nuts/Bolts				14-19 ft. lbs.
main bearing cap bolts				61-65 ft. lbs.
oil pan bolts				5-7 ft. lbs.
oil pressure switch				9-13 ft. lbs.
oil pump sprocket nut				22-25 ft. lbs.
rocker arm cover nuts				1.1-1.4 ft. lbs.
rod bearing cap nuts				30-33 ft. lbs.
thermostat housing-to-Engine bolts/Nuts		6mm Bolts/Nuts		5-7 ft. lbs.
thermostat housing-to-Engine bolts/Nuts		8mm Bolts/Nuts		12-17 ft. lbs.
water pump bolts		6mm Bolts		5-7 ft. lbs.
water pump bolts		8mm Bolts		12-17 ft. lbs.
miscellaneous		6mm Bolt		5.8 ft. lbs.
		8mm Bolt		13.7 ft. lbs.
		10mm Bolt		27.5 ft. lbs.
		12mm Bolt		47 ft. lbs.
14mm Bolt		66 ft. lbs.



Fig. 1	Cylinder head bolt torque sequence-(With timing chain)

Fig. 2	Cylinder head bolt loosening sequence-(With timing chain)

Fig. 3	Timing chain cover and related components.

Fig. 4	Timing mark alignment-(With timing chain) NOTE: Big gear on the bottom is for the oil pump.

Fig. 5	Oil pump gear and chain.

Fig. 6	Oil pump components-(With timing chain)

Fig. 7	Cylinder location and firing order 1-3-4-2 (All)

Automotive Torque Specifications
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