Inlet & Exhaust Manifold Torque Settings - Rb25det

[D-limo]

Could someone please be kind enough to flick through their service manual and post up the inlet & exhaust manifold torque settings... Engine goes back in tomorrow provided I have these figures.

Have searched!

Thanks!

Edited June 21, 2007 by Drift_Limo

[D-limo]

Tried Nissan aus - no help either. Please help

[SECURITY]

edit: the EXHAUST manifold from the workshop manual is here:

the exhaust manifold doesnt show any torque settings on the turbo model, so im guessing it means to do them as tight as you can??? can someone confirm this?

here is the INLET manifold torque settings:

when i put mine together i didnt look at the torque settings, i put the new studs and nuts in pretty damn tight as well as used some lock tight.

[MANWHORE]

You have to torque the the exhaust manifold. Doing them too tight is what makes them snap. there is a torque setting. I'm not at home so I don't have my files with me, but lsat manifold, I remember I had figures to use

Edited June 21, 2007 by MANWHORE

[tridentt150v]

How can you torque an exhaust manifold?? You can only get to say 5 or 6 out of 12 nuts. The rest are hidden and only accessible using a spanner, and only the open end not a ring spanner.

And a HKS cast low mount is even worse, 3 nuts only. So if there is a tool out there bsides my elbow click I'd like to know about it!

[D-limo]

inlet manifold from the workshop manual is here:

the exhaust manifold doesnt show any torque settings, so im guessing it means to do them as tight as you can??? can someone confirm this?

when i put mine together i didnt look at the torque settings, i put the new studs and nuts in pretty damn tight as well as used some lock tight.

Thanks mate! Can I just confirm that I will be tightening the inlet nuts 27-31nm?? Just the diagram looks like its for an exhaust manifold. I have also found in another thread figures of 18-22nm for the inlet manifold.

Also I am using a HKS cast low mount exhaust manifold. Last thing I want is for it to crack.

[Wheezy]

How can you torque an exhaust manifold?? You can only get to say 5 or 6 out of 12 nuts. The rest are hidden and only accessible using a spanner, and only the open end not a ring spanner.

And a HKS cast low mount is even worse, 3 nuts only. So if there is a tool out there bsides my elbow click I'd like to know about it!

HEHEHEHE, tell me about it

[D-limo]

ok doing the inlet on sunday at 25nm if no one else can confirm

Edited June 22, 2007 by Drift_Limo

[SECURITY]

i attached the wrong file mate. i named the exhaust and inlet the same damn thing.

this is for the intake manifold.

sorry mate.

[D-limo]

cheers buddy

[wrxhoon]

Inlet bolts about 20 nm , exhaust studs and nuts about 30nm.

Using loktite on the exhaust nuts does stuff all, the heat will just melt it . Make sure you use the s/steel locknuts and put the washers on the correct places , there are 2 different thickness washers . Do them up in 2-3 stages and start from the midle and work your way out, check the manifold for cracks and warpage .

[SilverECR33]

hang on a tick , No one answerd the question regarding what kind of torque wrench to use on it? i got 2 torque wrenches and none of them will work.. can you get a special open end torque wrench??..

[saliya]

hang on a tick , No one answerd the question regarding what kind of torque wrench to use on it? i got 2 torque wrenches and none of them will work.. can you get a special open end torque wrench??..

Ideally you'd use a socket torque wrench on all nuts; but as you and others have

reported some of the nuts are pretty impossible to get to. I've not seen a torque

wrench that will get into the smallest spaces.

In this situation the 'elbow torque wrench' or 'feel wrench' is used.

You basically need to guess at the torque.

The easiest way to do this is probably to:

* Set your torque wrench to the bottom end of the desired torque (RB26 is 18-24Nm,

so say 18Nm) and do all the nuts up evenly till one or two that you can test

set the torque wrench off.

* Set your torque wrench to the figure you want (say 21Nm) and torque one

reachable nut up.

* Use the spanner that will go into the smallest space to feel 'how hard' it is

to _just_ move that nut. You need to put your fingers in the positions they will

be to do it up - usually quite awkward, and you need a gradually increasing push to feel this

correctly - don't give it a shove. This is 'how hard' you need to do up the ones

that you can't measure.

* Do the remainder of the nuts up that hard. Check the ones you can reach with

the torque wrench to make sure you're pretty close to the money.

Regards,

Saliya