Fastener Torque Values [Merged 3-9] value tightness torques specs specifications

[GreddySpyder]

I changed my leaky oil pan gasket not long ago and it is still leaking. I used red rtv as the gasket and ran a nice continuous bead around the whole pan making a circle around each bolt hole. I think the two mistakes I made were not waiting for the RTV to dry before putting the pan back on, and I think I tightened the bolts too much ( I ended up breaking one of them).
I'm gonna buy a torque wrench and make sure they are right this time... how much torque do the pan bolts require? How long should I let the RTV dry this time before putting the pan back on?

 

[FORMONTOYA]

The ARP cut sheets are inserted into post #2 here:

http://dsmtuners.com/forums/showthread.php?t=187841&highlight=ARP+TORQUE

 

[vsalas793]

The ARP cut sheets are inserted into post #2 here:

http://dsmtuners.com/forums/showthread.php?t=187841&highlight=ARP+TORQUE

my head is just siting on the headgasket ready to be torqued. but i did not use the moly lube on the studs. after reading that thread im goin to go back and moly lube it and torque to 85-90. im planing to go 22 pounds of boost. thanks for the help guys.

 

[diambo4life]

I have torqued mine to 95 (with moly lube) for the longest time and I frequently run over 25psi. This is with a stock head gasket.

 

[AL92]

I have looked all thru my haynes and can't seem to find the trans and motor mount thru bolt torque specs.What are they or do I just make them as tight as possible?

 

[njc1064]

i just tightened mine down. I have never had problems just making them as tight as i could

 

[1993eclipseGS]

Every transmission I ever installed, I only just tightened them until they were tight. I never have had any problems doing so.. Same with the motor mounts.

 

[dwdsm]

NO NO don't just tighten it.
here...

Transaxle mount- Mount to transmission= 41 ft.lbs
Mount to Car body= 50 ft.lbs

When you just make it real tight you bend and/or break stuff.
I have a mitsu service manual straight from the dealer. It was a lot of $ but worth it.
dave

 

[eclipsegsx97979]

im rebuilding a 6 bolt engine and wanted to see if anyone knew where i could get all the torque specs for everything in the motor such as main studs, rod bolts, head studs, oil pan, etc....

kevin

 

[steve]

http://www.manualcd.com

Steve

 

[eclipsegsx97979]

u have to pay on here? i could find the torque specs?


kevin

 

[insanewayne]

It may not help this very instant, but in the Faq section of www.westcoastdsm.ca, you will be able to find every torque spec for a DSM in about a weeks time.

 

[steel_3d]

Grab a Haynes, Chilton's or similar repair manual from an auto parts store.

 

[gsxtacy]

^

Repair manuals also have alot of other useful info besides torque specs.

Maybe $16 bux at your local Autozone.

 

[GVR4592]

Some of the torque specs in the Chiltons manual are not accurate. Get a factory service manual, it the only way to go.

 

[bjones18]

not every torque wrench is the same, or serviced recently. And many torque wrenches are correct within +/- 4%. Ask any quality engine builder they will go on and on about how important rod bolt stretch is

Places which do torque audits on a regular basis will NOT use clicker torque wrenches (which means it is much more than 4%).

The only torque wrenches they trust are cam-over type.

 

[TurboTJ]

What do i need to torque my spark plugs down too? Will i strip the head if i got to far?

2G TSI AWD

 

[MrBoxx]

You don't need to torque them. Just screw them in until they don't screw anymore.

Make sure they're gapped to .028" though.

 

[DSMunknown]

do not worry about the exact torque specifications. the only descriptive word you need to remember regarding this is "snug."

that's the same word my father told me when i first replaced my plugs, and i knew exactally what he meant.

EDIT: btw do not tighten them so firmly that you get screwed. if you do, they will be virtually impossible to take out without ripping out the entire engine and trying to get them loose. THEY AREN'T GOING ANYWHERE!! just use a little bit of wrist force and that is all you need.

 

[MrBoxx]

snug

Yeaaah... I like that.. "snug". That's the best word to describe it. Your dad rocks.

 

[PieEyedPiper]

I just want to make sure you're not over "snugging" your plugs.
Bad things can happen, wouldnt want to strip them or anything.

Hand tight is a good rule, just make sure you dont crank 'em!

 

[DSMunknown]

Yeaaah... I like that.. "snug". That's the best word to describe it. Your dad rocks.

damnit, boxx!! you beat me






EDIT: come on... rep point!

 

[steve]

Really bad advice guys. Snug works right up to the point where it's too snug and the head is stripped.

Since we are talking 4G63 the spec is 25 Nm (18 ft.lbs). The 1G manual gives a range of 20-30 Nm (15-21 ft.lbs.)

I've yet to meet a human with calibrated hands so we always use tools that are.

Steve

 

[steve]

EDIT: come on... rep point!

You want rep points, I'll give you some but you won't like it.

Search around to see what sort of rep points we give out to people that post bad advice and ask for points.

Steve

 

[groundPork]

Its got nothing to do with trusting ARP with their torque spec. Its the fact not every torque wrench is trustworthy IMO, and torque value is strongly affected by the "smoothness" or surface finish of the threads on the bolt and the threads in the rod, the type and amount of lubricant used on the threads etc.

Bolt stretch is affected by material properties and bolt dimensions. Its just absolutely more precise.

Never once did i say you cant go by just torque value. But in my personal experience, i will tell you, its not too often im dead on with the bolt stretch with the recommended torque values. And ask ARP and they will tell you, bolt stretch is a much more precise and correct way for measuring preload.

+1... Torque wrenches measure torque necessary to overcome the friction of the threads rubbing directly against eachother.. that's why ARP Moly is thick as honey (to reduce metal to metal as much as possible, so the actual yeild of the fastener is just reached) so the fastener reaches correct stretch, then you know it's producing the correct clamping force. This is why you measure the length. APR's number are correct and certainly trustworthy. Most of the time a torque wrench is enough though for most street stuff.

 

[MrBoxx]

Snug works right up to the point where it's too snug and the head is stripped.
Since we are talking 4G63 the spec is 25 Nm (18 ft.lbs). The 1G manual gives a range of 20-30 Nm (15-21 ft.lbs.)

I didn't know that, Steve. I've always just turned them till I felt the barest resistance, not even using any torqueing force on them. I suppse that was my understanding of the word "snug". I guess I'll have to buy a torque wrench and see for myself what it feels like.