Jetlag

Okay, I've got a Snap-on torque wrench but it only goes up to 75ft#. So, I went down to my friendly Auto Zone for their tool rental. I rented one of their OEM branded torque wrench and it goes up to 250ft#. This is the highest rated torque wrench that i could find.

My question is, is this enough to torque down the flywheel nut? I know the manual said to torque it to 280-300ft#. In Bruce. T's video, he said to torque down to 150ft#, then turn the nut another 60 degrees. Have anyone else done it this way,r did you just torque it down to 250ft#?

Thanks, Jay

cptpain

iTrader: (1)

i've done it Bruce's way before. and it works. but still a pain in the *** with a 1ft extension on a breaker bar when under the car.

i've also torque it to exactly 300ft-lbs and they both had about the same resistance (well gauging by my weak small frame, being sore doing it every time) i only weigh 160lbs give or take

sunburn

I just hit it with an Impact gun set at about 300lbs forward. I later found out the wrench only goes to 290lb has been fine for about 3,000 miles.

bajaman

I did it Bruce's way. I actually have/had a torque wrench rated to 600 ft./lbs. that I had to buy to torque the harmonic balancer nut on a diesel Audi I had. That nut had to be torqued to 540 ft./lbs. I remember having a 6' cheater on the wrench's 3' handle, laying on my back and pushing on the cheater with my feet, actually lifting the car up before I heard the 'ker-chunk' of the wrench.
Of course, when I went to find it...I couldn't. A damned $300 wrench I used ONCE...lost....or stolen.

Most people go with Bruce's way, it seems.

adam c

iTrader: (2)

If you torque it to 250 lbs, it will be fine.

Sgtblue

iTrader: (16)

Or you can get one of these that spins them off pretty well too. It's adjustable and IIRC about 3/4 from the lightest setting at about 100 psi gets it pretty close to what you need.
----> http://www.harborfreight.com/cpi/cta...temnumber=2623

badddrx7

iTrader: (7)

Did you use a dab of threadlocker ?




LAter

DaleClark

iTrader: (55)

The principle of the high torque number on the flywheel nut is to press the flywheel onto the taper on the eccentric shaft. In other words, you just have to tighten the crap out of it.

I just hit it with the impact gun until I can't see the nut move any further. It's usually a good 20-30 seconds of running the gun. Done this COUNTLESS times, haven't had a problem yet.

BTW, you do want to put Loctite on the threads and RTV sealant on the rear face of the nut as per the shop manual.

Dale

BigIslandSevens

iTrader: (4)

I just run it on with my impact like Dale as well. I have a 400 ftlb gun.
Dave

Jetlag

Wow, thanks for all the awesome responses and advice. I have a high torque/rated impart gun but my compressor is only a 20 gallon unit, not enough output to drive that nut.

I was imagining that if I didn't torque that big *** nut to 300ft#. Somehow it would work itself loose and break though the bell housing, then through the transmission tunnel, then shear off both my feet. I guess I've been watching too much Myth Busters!

I'd purchase a used ACT street light flywheel and it came with the counter weight and some bolts for the counter weight. When I bolted down the counter weight, the bolt almost touches the rear main seal/rear main seal housing.......
Can I still use these bolts and just get some lock washer or are they meant to be use without washers? Also, do you have to replace the pressure plate nuts or can my old ones be reused. My entire car only had 76K miles.

Thank you, Jay

Sgtblue

iTrader: (16)

I don't have a lightened FW, but my first thought is that good quality and properly sized lock-washers couldn't hurt, and would give you that much more clearance. I've re-used PP bolts with no issues.

MOBEONER

iTrader: (18)

+1

GoodfellaFD3S

iTrader: (213)

+1

btw, for those playing along at home, you'll need a 54mm or 2 and 1/8th inch socket

RLaoFD

iTrader: (6)

Yeah I just used my legs and tightened the hell out of it, using my jacks as a way to hold myself so I wouldn't slide out from under the car pushing so hard. Before I took it off I noticed there were markings that matched up on the flywheel nut and E-shaft so I just tightened it as hard as i could and almost got those marks to match up perfectly again. There was no way I could get it to budge anymore so I was satisfied.

pinkrx7

iTrader: (2)

Dale, what kind of gun do you use, whats the max torque rating? I would be worried about over torquing, I have a 580 lb one so I don't know when it would be ok to stop.

Tom93R1

iTrader: (2)

When you buy an impact gun that says it's rated for example 580, that is the rating for reverse.

The forward torque is much less, maybe about half. So that 580 gun is really closer to 290 for putting a nut on.

Aeka GSR

iTrader: (4)

I just use a 3/4" impact wrench. *THWACK* *THWACK* *THWACK* *THWACK*

yeah most ratings are reverse. I also have an Ingersol Rand Titanium Torque 1/2" impact that has 700 lbs of "nut busting" torque. That is for reverse only.

Jetlag

I've got that big *** socket a while back. So, lube the tapered portion,threadlocker the threaded part and sealant on the nut facing the flywheel.

This should prevent my legs from accidental shearing via flywheel....