RAS Installation

[16 yr old drftr]

I just bought some Greddy RAS to put into my s13 sr. The FSM says to tighten the cam bolts to 8.7 lbs. The problem is my torque wrench only goes down to 10lbs and so does every other one I've ever seen. Is it going to hurt it to put them at 10 lbs?

[bongnak]

ad an extension or extension to your torque wrench this lowers the applied torque, not the best way but better than buying a new torque wrench.
i just do it by feel

[SINxSELEKTAH]

1/2" drive? 3/8" drive?

[Silverbullet]

10 ft*lbs will be fine. 8.7 ft*lbs rating is with a safety factor. When mechanical engineers design parts they always use a safety factor of atleast 1.5 to 2 so the elastic region of the material is not exceeded on accident.

but ya, adding an extension is a good idea for reducing the torque slightly if you feel the need to.

1/2" drive? 3/8" drive?

It wouldn't matter which you use for the extension. The length of the extension is what matters in how much torque is put out on the other end.

[16 yr old drftr]

its a 3/8 in. I tried to get a new one, but none of them ever went lower than 10ft*lbs. But if 10 lbs wont hurt it, I'm gonna go try it and see how it goes.

[sillyvia13]

get a old school torque wrench...they go low...that's what I use for that...
has a breaker bar style wrench and a lil piece of metal on top when you torque bar bends but lil metal doesn't and allows lower adjustments...
snap on only goes to 10 TOO!



be careful, don't wanna strip a hole alum. is soft. or break a bolt...

[Koopa Troopa]

I always just tightened them with a nut driver... Just tighten till it's snug and you'll be good.

[16 yr old drftr]

For the record. 10 lbs was to much. car would start but didn't want to run. I loosened to bolts and just snugged them up and they are doing fine so far.

[Silverbullet]

that has nothing to do with how tight those bolts were. 10 ft*lbs is literally finger tight. You probably didn't have some vac line hooked up the first time.

[LongGrain]

werd, tightening your cam bolts 1.3 ft/lbs too tight isnt going to make your car not run lol.

[frosty_the_iceman]

Hi.

Click-type torque wrenches have a minimum value, because manufacturers can only make the torque sensing mechanism (the bit that makes the "click" sound) so fine, before it would become ineffective.

The older deflection or gauge type wrenches can read from 0 ft-lbs. But they look like ass and they're hard to fit into tight spots.

10 ft-lbs is seriously light-duty though. I would just go until the fastener is "seated", i.e. it gets hard to turn all of a sudden. Then give it another 1/8th turn.

-JD.

[ho1ywars]

snap on 1/4 torque wrench goes down that low

[Jus Skott]

wierd man all data says this in ref to torq

TIGHTENING SPECIFICATIONS

Front To Camshaft Cover 9.2 - 10.8 Nm (81.6 - 95.5 inch lbs.) Gear/Sprocket Cover

M6 Bolts 6.4 - 7.5 Nm (56.4 - 66.0 inch lbs.)
M8 Bolts 16 - 19 Nm (12 - 14 ft. lbs.)i'd go w/ that.


also vato zone sells tq wrenches that go that low. i know cause i werk there
~skott

[greddyguy]

try using an INCH pound torque wrench and putting them at 100 inch pounds. thats about 8.7 foot pounds

[RedtopTech]

for one, torque wrenches are fairly inacurate near their minimum settings. I prefer the snap-on digital torque wrench for most jobs. It vibrates and beeps when the torque value is reached. It also displays the progressive value as you increase torque. With the cam journal bolts even torque is more critcial than the torque value although the bolts will snap around 17

[SINxSELEKTAH]

It wouldn't matter which you use for the extension. The length of the extension is what matters in how much torque is put out on the other end.

drive refers to the "driving" square of the socket wrench. not the length of an extention. i have a 1/2" drive click type torque wrench where the minimum indication & rest setting is 20ft lbs. where as my 3/8" click type torque wrench has a minimum & rest settin of 0.