Cylinder head bolts tightening sequence for Citroen C3 diesel engines: 8HX, 8HW, 8HZ, 8HV or 8HY
Bolts are 'stretch bolts' and can be reused if they are no longer than 149mm
The torque is a Pre-tightening of : 2 ± 0.2 m.daN,
then a tightening of : 4 ± 0.4 m.daN
Followed up by an angular tightening of : 230° ± 5°
Deca Newton Meter (daN·m) is 0.1 of 1 Newton Meter (N·m)
Advice for head bolt reuse:
The bolts should have been thoroughly cleaned with a dry wire brush.
Lubricate the threads and under the heads of the bolts with this Molykote G-Rapid Plus.
Gently pass a tap into the holes in the cylinder block to clean the threads.
A complete set of the 10 bolts is available here should yours be suspect, exceed 149mm or show any surface corrosion.
Cylinder head bolts tightening sequence
Forum rules
Tips for a Diesel powered Citroen C3
Tips from forum members are encouraged and very welcome.
Questions are not to be posted in this section
Think: Diesel engine, diesel fuel system, diesel injectors and glow plug tips
Tips for a Diesel powered Citroen C3
Tips from forum members are encouraged and very welcome.
Questions are not to be posted in this section
Think: Diesel engine, diesel fuel system, diesel injectors and glow plug tips
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