calrx7

I was wondering what kind of torque wrenches are needed for an engine rebuild.
Please specify drive size and specific units of force (ie in-lbs or ft-lbs).

KNONFS

iTrader: (14)

I used the cheapest craftman (it goes for like $25) and it is up to 100ft-lbs or so...

Goofy

I've got one of those!

ArmyOfOne

iTrader: (12)

Me too. But I dont dare use that on my engine.

kungfuroy

iTrader: (6)

Or you can use the clicking type, you can pick up both inch pounds and foot pounds styles at harbor freight for less than $20 each.

Jimmy you pop the motor in your 10th ae?

Aaron Cake

iTrader: (1)

You need inch pounds for the oil pump bolts, and a foot pound wrench for the rest of the bolts. It should go to 150 Ft-lbs at least for the flywheel nut (torque to 150 ft-Lbs, then use impact to move the nut another 60 degrees for final torque).

The beam wrenches are fine.

calrx7

Which drive size should I get... the 3/8 or the 1/2?
or can a drive adaptor be used?

Aaron Cake

iTrader: (1)

1/2" for the big one, 3/8" for the small one.

RETed

They only one you need to worry about is the tension bolts.
Those are right about 30 lb-ft.

All the other **** don't really need to be torqued properly (yeah, I can hear the boo's now), and I use the "German" standards or "fukintite" and "titenuf".

The front eccentric shaft bolt is supposed to be around 100 lb-ft, but with the treadlocker / thread sealant, this is not that important to torque down.
I hit it couple times with the impact gun with no problems.

The (rear) flywheel nut is ~300 lb-ft, and you need a 3/4" drive torque wrench or a torque multiplier to hit that number.
There's a seller on eBay who is selling "surplus" Snap-On torque multipliers (4x?) for $150 each - regular price $600!
If I was worried about that flywheel nut, I would grab one of those torque multipliers in a jiffy.

I use only Snap-On torque wrenches.
I've used Sears Craftsman click-type torque wrenches, and they have all fallen apart on me - the nut on the bottom falls off - so I will never use another one again.


-Ted

RX drift

Here is a Snap-on torque wrench for you.



my great grandfather was wrenching on this one back in his younger days, and as far as i know is still accurate. it measures in in. lbs up to 150in lbs.

RotaryEvolution

iTrader: (30)

i suggest a 3/8" 5ft/lb to 70ft/lb wrench or so. you can get a good one from Mac or Matco tools. i only use this one torque wrench for everything around an engine rebuild but a good torque wrench will cost you $150+

tension bolts - 29ft/lbs
stat gear bolts - 17ft/lbs
front cover and water pump bolts - 17ft/lbs
LIM to block bolts - 17ft/lbs
exhaust manifolt yo block nuts - 25ft/lbs
oil pan and pickup tube bolts - 7ft/lbs
front eccentric shaft bolt - 2 good hits with my impact gun
flywheel nut - about as tight as i can get it with my impact gun, after a while you just know when 300ft/lbs is with your gun

some numbers may be a little off from spec but that is what i torque my bolts to.

MaczPayne

iTrader: (5)

This might be useful if you're working on flywheels.


Flywheel Torque Tool

classicauto

iTrader: (3)

"hey mike, did you torque those babies down?"
"yeah man, right to R.F.T."
"R.F.T.?"
"really ******' tight"

An important thing to remember with a real torque wrench is to always put it back to zero when in storage......Ive seen one of my guys reefing the s*%t out of some 25ft/lb bolts with a toruqe wrench that was out of calibration, you don't want to have that happen for your tension bolts.

Carzy Driver

That would be a nice kit if our flywheel nut was 36mm instead of 54mm

MaczPayne

iTrader: (5)

lol that's right, I forgot our nuts were bigger.

spot_skater

I use a 0-75 ft/lbs 3/8" craftsman torque wrench, and my 0-220 ft/lbs 1/2" Snap-On torque wrench.

turbine

iTrader: (1)

i used my snap on tech wrench
the most gangster of all torque wrenches
it will do inch lbs and ft lbs

sykminded

maybe I should get a reduction job on mine then.

spot_skater

Meh... electronic. I like the analog ones, personally.

To each his own, though.

MaczPayne

iTrader: (5)

That electronic snap-on torque wrench probably costs more than my fc...


Harbor Freight FTW.

Carzy Driver

+1 for the Harbor Freight 1/2" drive torque wrench, I've been using that for a couple of years now without any misses. plus it's only 11.99!