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[Anthony in Madrid]

There are two types: the classic 'beam' type with a scale and a pointer, and the micrometer type which clicks. They both have limitations, beam ones need a large scale and a straight pointer. The others depend on a screw and a spring, so damage is less obvious.

Cheap micrometer TWs have pretty much eliminated the beam ones.

The job most of us use them for don't require extreme accuracy, so cheap ones are easily good enough. That's a statement that will have the anoraks frothing at the mouth and building bonfires to burn my effigy, but that doesn't stop it being true!

Should I guess the 8Nb for the plenum refitting? 

No!

No What? 

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Chris plainly means NO you shouldn't guess the torque setting for the cam covers Anthony
In fact , "guessing" any torque setting is foolish and unnecessary since torque wrenches can be bought reasonably cheaply

I need to take off the plenum, not cam covers amigo.
That's the only job at the moment.
Do the bolts need an exact Nh?
 

These might help 




http://www.omegaowners.com/forum/index.php?topic=90657.0

http://www.omegaowners.com/forum/index.php?topic=90545.0

Awesome thanks
 

[chrisgixer]

I should digress Anthony, sorry .

The plenum bolts will take a lot more than 8nm. But they only need to be tight enough to compress the rubber seals, and not come undone of course. Just nip them up, they'll be fine.

I was referring to being accurate where ever possible. In short, do what tour doing, and ask first. Find out what's correct. What matters, and what doesn't matter so much. 8nm and no more is important on cam covers. 8nm on plenum bolts is much less important. I've just been nipping them up for years

Do get a torque wrench though. Spark plugs, cam cover bolts, inlet bolts, plastic wedge bolts, associated cam belt fasteners, an 8nm to 60nm wrench will do.

Wheels and suspension you need 110nm for wheel bolts up to 310nm for wheel bearings. The 300nm Halfords ones will do that range with a few extra turns past the last digit.

[Anthony in Madrid]

I should digress Anthony, sorry .

The plenum bolts will take a lot more than 8nm. But they only need to be tight enough to compress the rubber seals, and not come undone of course. Just nip them up, they'll be fine.

I was referring to being accurate where ever possible. In short, do what tour doing, and ask first. Find out what's correct. What matters, and what doesn't matter so much. 8nm and no more is important on cam covers. 8nm on plenum bolts is much less important. I've just been nipping them up for years

Do get a torque wrench though. Spark plugs, cam cover bolts, inlet bolts, plastic wedge bolts, associated cam belt fasteners, an 8nm to 60nm wrench will do.

Wheels and suspension you need 110nm for wheel bolts up to 310nm for wheel bearings. The 300nm Halfords ones will do that range with a few extra turns past the last digit.

Thanks amigo 
But I do agree safe than sorry!
I do intent to buy a couple of wrenches after vacation as they tally up about 140 Euros here for low and high Nm's. Checked them out yesterday. German brands...Of course. The Spaniards love and highly regard German technology and products here. Vorsprung Durch Technik!
Going to be posting pics of the plenum job and DIS check later.
Cheers
Anthony