head tightening torques
Moderator: RichardW
head tightening torques
Hi I'm replacing my head gasket on my Citroen Relay of the X Reg vintage, fitted with a 1.9 non turbo diesel XUD engine, can anybody tell me the correct head bolt tightening torque for the new stretch head bolts
- Old-Guy
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At the risk of stating the obvious...
It's absolutely vital to tighten head bolts progressively in the correct sequence (refer to this scanned copy of the BoL). Personally, for the extra few minutes work, I wind down bolts in sequence until they touch the head, then tighten (in sequence) in steps of 10nm until I reach the required final pre-load figure (60 nm), again in sequence, I then rotate the extra angle (180 degrees) to tension the bolts. You can buy special tools to do the angles 'accurately', but it's a pretty poor mechanic who can't judge an accurate 60,90, 120, or 180 degrees.
It's absolutely vital to tighten head bolts progressively in the correct sequence (refer to this scanned copy of the BoL). Personally, for the extra few minutes work, I wind down bolts in sequence until they touch the head, then tighten (in sequence) in steps of 10nm until I reach the required final pre-load figure (60 nm), again in sequence, I then rotate the extra angle (180 degrees) to tension the bolts. You can buy special tools to do the angles 'accurately', but it's a pretty poor mechanic who can't judge an accurate 60,90, 120, or 180 degrees.
2011 Grand C4 Picasso VTR+ 1.6HDi in Kyanos Blue
1995 Xantia Estate SX 1.9TD in Vert Vega "The Green Lady" - after 11 years now owned by XanTom
1998 Xantia 2.1 VXD Estate in Mauritius Blue - R.I.P. (terminal tin-worm)
1995 Xantia Estate SX 1.9TD in Vert Vega "The Green Lady" - after 11 years now owned by XanTom
1998 Xantia 2.1 VXD Estate in Mauritius Blue - R.I.P. (terminal tin-worm)
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