440 cylinder head bolt torque.

molteniman · Post by **molteniman** » 15 Apr 2013, 10:18

Good afternoon. Before I torque the cylinder heads bolts on a B18U engine, I want to get the sequence right. The Haynes manual says 22 lbft, then 52, wait 3 minutes and slacken, then 15 lbft and finally angle-tighten 123 degrees +/- 2. However, the instructions with the head gasket (British Gaskets Group) say 22 lbft, the 50 degrees, then -180 degrees, then 18 lbft and finally 213 degrees. Which is correct, or do both arrive at the same tightness? Any help would be gratefully appreciated.

Post by **billofdurham** » 15 Apr 2013, 12:06

Welcome to Matthew's Volvo Site.

The attached corresponds with the Haynes manual and is from a reputable trade book.

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Before starting lightly oil the screw threads and the bolt head mating surfaces then put them in finger tight.

I wouldn't think that the gasket instructions are correct as the final 213 degrees is a lot more than 123 degrees and would result in the head being too tight.

Bill.

molteniman · Post by **molteniman** » 15 Apr 2013, 12:43

Many thanks for lightening response. Weather permitting, I'll finish the job tomorrow. Fingers crossed.

molteniman · Post by **molteniman** » 15 Apr 2013, 16:29

Sorry! Mispelt lightning.