What is the torque specification for Jetta cylinder head bolts?

1 Answers
AllieRose
07/29/25 9:34pm
Jetta cylinder head bolt torque specification is: engine cylinder head bolts require 8-9 kg, connecting rod bolts 5-6 kg, and crankshaft bolts 10 kg. Precautions for tightening bolts: Over-tightening bolts can cause damage to the vehicle. There are many fasteners connected by bolts and nuts in automobiles, which should have sufficient preload but should not be over-tightened. If over-tightened, on one hand, the connecting parts will undergo permanent deformation under external forces; on the other hand, the bolts will experience tensile deformation, leading to a decrease in preload or even causing thread stripping or breakage. Knock sensor: For example, the vehicle's knock sensor. If the bolt is too tight, the sensor will become overly sensitive, resulting in poor engine acceleration; if too loose, it will lead to poor signal detection.
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