hey guys,
i don't have torque wrench i am recommended to bolt the front manifold bolts back on at 10-15Nm. now doing this with a socket wrench approximately how tight would this be?

also tightening something as tight as you can with socket wrench, how tight would this be.

cheers.

ps. will be getting a torque wrench soon. just I'm putting my car back together now.

hey guys,
i don't have torque wrench i am recommended to bolt the front manifold bolts back on at 10-15Nm. now doing this with a socket wrench approximately how tight would this be?

also tightening something as tight as you can with socket wrench, how tight would this be.

cheers.

ps. will be getting a torque wrench soon. just I'm putting my car back together now.

You answered your own question.

ha.
ok guess i will just go as tight as i can.

cheers

STOP!

Tighten them so they are tight, but not as tight as you can get. Its a manifold after all, as long as te nuts/bolts are on tight they arent going to move.

If you tighten them "as hard as you can" you may snap them, then youre in alot of trouble.

i snapped one holding the throttle cable down.

so ive only got one in at the moment. oh well. will fix it later.

STOP! HAMMER TIME!

Tighten them so they are tight, but not as tight as you can get. Its a manifold after all, as long as te nuts/bolts are on tight they arent going to move.

If you tighten them "as hard as you can" you may snap them, then youre in alot of trouble.

fixed ur post up :)

Torque wrench can be had at super cheap for about $40. I think it's "best buy" brand.

Does the job, just go massively inaccurate if dropped (even gently)

well i think i should go with a stronger torque wrench then, as i have a tendency to drop tools.

Recently when tightening down the camshaft bearing caps on my TR V6 the torque wrench I had would not go low enough. So I used a technique I have used before.

I used a ring spanner and measured its length. Then a spring balance applied to the other end told me how hard to pull to get the correct torque.

Yes there is some maths involved to work this out and in my case seeing as the old spring balance was in pounds a conversion from imperial to metric too. However it works.

Rob

Always use a torque wrench with any bolts that hold large parts onto the engine - ie. manifolds, rocker gear, head etc.

Never, ever just tighten it as tight as it goes. Remember - metal expands when it heats, and as such, you have every chance of some serious damage being done if something bends when the car heats up. Something like the rocker gear can warp and damage the camshaft if it warps in a strange way. If the head warps, you get leaking head gasket, and if the manifold warps, you get air or exhaust leaks (depending which manifold).

If you are going to be working heavily on the engine itself, getting a decent torque wrench is worth the money, as it will save you heaps in the long run compared to if you break something! Especially with things like snapped bolts, which in many cases may either require a professional to remove, or a really expensive tool.

well i was to scared to do it up real tight.

once i go get the torque wrench i will undo them and torque them up.

gotta replace one of the bolts that hold the throttle cable to the manifold, snapped the one without the earth. its holding up for the moment but gotta figure out how to get the snapped bolt out.

ive got a screw extractor set, but I've lost the drill bit for the extractor bit i was gonna use.

I used a ring spanner and measured its length.Following on from this; 1Nm is 1 Newton applied to a 1m beam/lever. 1kg under gravity is roughly 10Newtons (9.81)
Say your spanner is 30cm long; no, make it 33.3cm for simplicity. You need to apply 3x the Newtons to get the Newton-meter figure.

So 15Nm on a 33.3cm long spanner would require 45Newtons applied to the end; find yourself 4.5kg of something, lift it, and that's 45Newtons worth. Apply that amount of strength to your spanner :P :fruitcake

:doh: ... It's not a Mechano set! snapping a bolt off in the motor isn't the best thing to do... even though it can be fixed it's still a bugger of a job to get out.

With respect, if you don't have the right tools for the job maybe you shouldn't do it.

Oh and dropping a torque wrench is not going to do it or your car any favours lol

Do yourself a favour... never replace your brakes :P

;)

err why. what should the torque be for my brakes. as i did my rear ones without it :s.

might go look at torque wrenches now actually.

finally! got myself a torque wrench.

tried conventrys first and the price range they had was from $265 to about $500ish so i thought stuff that, then i found just what i was after for $49.

adjusted the manifold bolts, just gotta look at the rear brakes later on.