torque setting....

[antz]

reading my xflow book for torwue settings and it says for instance:

 

fuel pump: 16.3-20.3

 

so...where abouts do i set it to its not very accurate!

 

any ideas cos all the settings are like this and im confused

[lee_capri]

antz, dont no if this help's but i only bother torqueing the head down on engine's,every thing else i just do ft

[antz]

yeh but id rather do it by the book

[escort21]

Just set the wrench to 15/20 whatever its in metric(nm) or imperial(lbft)

[antz]

think its in NM...

 

should really get to grips with my torgque wrench first

[Mr Sam]

just dont go any higher or much lower

[petrolhead01]

reading my xflow book for torwue settings and it says for instance:

 

fuel pump: 16.3-20.3

 

so...where abouts do i set it to its not very accurate!

 

any ideas cos all the settings are like this and im confused

 

antz , probably better off asking james or jeff harris or one of the other engine builders on the site , dont just guess as you could end up making a lot of extra work for yourself repairing unneccesary damage!!!!!

 

lee you are right you are as mad as a sack of badgers!! torque settings are there for a reason!!!

[Messenjah]

pfft torque wrench ??? wassat

 

 

 

all u need to know is if its

 

T

VT or

VFT

[Wessie]

if you got eh tools then use them mate ! torque everything up however minute it may be they give the specifications for a reason !

[Messenjah]

only time i ever used a torque wrench on MY car was doing head bolts and i snapped one ... and yes i was using it correctly soo i dont use em

[Wessie]

what about big ends then, they just dun up to 'a grunt and a half'?

bunch of bandits you lot

[Fiesta Steve]

reading my xflow book for torwue settings and it says for instance:

 

fuel pump: 16.3-20.3

 

so...where abouts do i set it to its not very accurate!

 

any ideas cos all the settings are like this and im confused

 

Your right, its not very accurate, but neither are some torque wrenches.

 

I'd take an average. so 18.3.

 

This will allow for 2 NM of error in your torque wrench either way

[James HPE Motorsport]

reading my xflow book for torwue settings and it says for instance:

 

fuel pump: 16.3-20.3

 

so...where abouts do i set it to its not very accurate!

 

any ideas cos all the settings are like this and im confused

 

Your right, its not very accurate, but neither are some torque wrenches.

 

I'd take an average. so 18.3.

 

This will allow for 2 NM of error in your torque wrench either way

 

Agreed I always go halfway if a range is given! You will also get a "feel" for things and always remember to torque in one movement meaning once the bolt is nipped up, dont stop turning the torque wrench until it clicks. If you stop and go again, nine times out of ten you will get a false torque!!!

[Toby]

Recon that figure is most likely ft lbs.

 

I torqued everything on mine the first time I put it together

 

Bolts / metal , has a stretching characteristic right up to the "yield point". This is the end of it's elastic limit. This is the point where the metal will not "spring" back to it's original length, therefore not having a pre-load and keeping itself tight. The point of torquing a bolt is to stretch it's length to keep the stresses within the elastic limit. That's the theory Everything has a tolerance so go mid limit and follow James's instructions, sound advise.

 

The point of the one smooth action is that it takes more torque to overcome static friction under the head of the bolt, and as you're only interested in the stretch of the bolt, not the torque, you need to keep the thing sliding. Some lubrication under the head is actually a benefit!!

 

These details are really most critical on highly stressed bolts, such as the con rods and main bearings.

 

ARP bolts are even supplied with a special lubricant for under the head and on the threads.

 

Sorry if this is a bit WHOO LIKE, THAT'S A LITTLE MORE INFORMATION THAN I NEEDED DUDE!!

[antz]

thansk for all your advice guys!!!!!

 

its been taken on board and much appreciated