Main bearing cap torqses - Alfa Romeo Forum
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Main bearing cap torqses

I have a 145 1.8 T/Spark...

I've removed the main bearing caps one at a time... and had a look for any damage, following a water pump failure (leading to timing belt derailment and subsequent valve carnage) and everything looks okay... no movement of the shells, nor any scoring or scraping.

Now I need to tighten the bolts back up and I have a few questiones...

1) I presume there is no "tightening order".. just torque the bearing shell bolts up one pair at a time...?

2) The book says "in oil".... 96 - (i.e divide symbol) 119 Nm which sounds a lot. Is that right? The similar con-rod bolts want just 25 torqses.

2b) What does "in oil" mean... Oil up the journals before I fit the caps, or oil up the bolts? Or something else?

2c) What does the divide symbol in "96 - 119" mean...? I guess tighten both bolts to 96Nm first, then each one to 119Nm, or does it mean just tighten the bolts anywhere within the range of 96 to 119Nm?

3) I feel the journals must be oiled before I fit the caps. Any better suggestion than smearing them in clean engine oil (10W40)?


Ralf S.

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