651 Engine Bolt Torques

[M80]

I've failed in trying to access manuals, and online info contradicts each other often.

So help appreciated on the torques and torqueing patterns of

Head bolts,
camshaft hold down bearings,
injector clamping,
inlet manifold.

New injector hold down bolts and copper washers - tick.
Head bolts reusable ?

Any other heads up warnings appreciated.

 

[mioba]

I would be inclined to use new head bolts.
Have you a friendly indy / dealer who can give the torque settings from WIS.

 

[M80]

I would be inclined to use new head bolts.
Have you a friendly indy / dealer who can give the torque settings from WIS.

No unfortunately, I was hoping I might find one here.

 

[mioba]

I am sure someone will pop on soon with the info you need. There are a few indies who frequent the site.

 

[Tony Dyson]

I've failed in trying to access manuals, and online info contradicts each other often.

So help appreciated on the torques and torqueing patterns of

Head bolts,
camshaft hold down bearings,
injector clamping,
inlet manifold.

New injector hold down bolts and copper washers - tick.
Head bolts reusable ?

Any other heads up warnings appreciated.

I have the Haynes Manual settings but I suspect they are part of the conflict you refer to? Herewith is a photo of the relevant section anyway FYIP

ETA The (See Text) reference is a statement of 'Do Not Reuse'

 

[M80]

I have the Haynes Manual settings but I suspect they are part of the conflict you refer to? Herewith is a photo of the relevant section anyway FYIP

ETA The (See Text) reference is a statement of 'Do Not Reuse'

View attachment 70162

I've seen the same in a couple of other places,

Pardon our interruption...

but since this supplier has questionable feedback I'm reckoning to use this

Pardon our interruption...

but any comments welcome.

 

[Tony Dyson]

but since this supplier has questionable feedback I'm reckoning to use this

Pardon our interruption...

but any comments welcome.

Don't you mean Positive?

I don't see a big difference in the torque settings either, there's 0.5 lb/ft more in the 1st two stages in the online guides with only two further 90° turns whereas the Haynes Manual indicates 0.5 lb/ft less in the 1st two stages and 4 further 90° turns? Go for it!

 

[M80]

Maybe I didn't write it clearly,
1st link is questionable, 2nd link has good feedback.

What I'm seeing is 1st pass 10N/m, 2nd pass 50N/m +90, +90, +90, +90.
Rotational pattern from the centre.
20N/m for the 3 M8 bolts

It's no wonder the bolts took some undoing.