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The torque specification for the rocker shafts on the 2001 Hyundai Accent with the 1.5L single overhead cam engine is 18-20 lb-ft. The proper torque sequence is as follows:
Tighten the bolts to 8 lb-ft in a crosswise pattern.
Increase the torque to 15 lb-ft, again in a crosswise pattern.
Finally, tighten the bolts to the full torque of 18-20 lb-ft, again in a crosswise pattern.
Make sure to use a torque wrench and follow the sequence carefully to ensure proper tightening and prevent damage.
30 Nm (300 kg.cm, 22 lb.ft)+90°+Release all bolts + 30
Nm(300kg.cm, 22 lb.ft)+90°In this instance you don't have a 'Torque to Spec"... you have a "torque to YIELD'In this specification, initially torque the head bolts to 22 lb ft... then turn each and additional 90°, then loosen each and REDO to the same specification = 22 lb.ft)+90° (you're actually crushing the head gasket TWICE and stretching the head bolts TWICE.
There is no such thing as a dual overhead gasket or a single overhead gasket.... there is, however, the existance of a dual overhead 'cam' and a single overhead 'cam'...
the valves are hydralic and are not adjustable.if they are noisey there may be a bad lifter or cam. if they sit for a few days they will click for awhile when started. the factiry recomends running the engine in nuetral for 5 minutes at 2000 rpm the bleed out air bubbles [or just drive it down the highway a few miles.
Bore × stroke
81.00 mm × 86.40 mm
3.19 in × 3.4 in Cylinders s-4 SOHC Single overhead camshaft
DOHC Double overhead camshaft
OHV Overhead valves
TS Two stroke
SV Side valves
Sl
Sleeve valves
oise
Overhead inlet side exhaust
5 valves per cylinder
20 valves in total
compression ratio
9.30:1
fuel system
MPFi
Maximum power150.1 PS (148.0 bhp) (110.4 kW) @ 5700 rpm
Specific output
83.1 bhp/litre 1.36 bhp/cu in
Maximum torque210.0 Nm (155 ft·lb) (21.4 kgm) @ 1750 rpm
bmep
1481.7 kPa (214.9 psi)
Specific torque
117.91 Nm/litre
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