Torque specs for NST crank pulley install

12nismo · 06-05-2014, 02:22 PM

Does anyone know what the torque specs are for the NST Crank pulley? I see that the Stillen one says to torque to 33 ft lbs and then tighten the crank bolt an additional 90 degrees. I assume the NST and Stillen are pretty much the same but is there anyone who has experience with the NST kit specifically? Thanks!

shotgungho · 06-06-2014, 08:08 AM

have you even tried calling NST? or the search button? or asking someone who's done it before? jeez

DEpointfive0 · 06-06-2014, 09:41 AM

Quote:

Originally Posted by 12nismo

Does anyone know what the torque specs are for the NST Crank pulley? I see that the Stillen one says to torque to 33 ft lbs and then tighten the crank bolt an additional 90 degrees. I assume the NST and Stillen are pretty much the same but is there anyone who has experience with the NST kit specifically? Thanks!

Use the same specs. It has nothing to do with the brand of pulley

Rid3_FaM0uS · 06-06-2014, 10:59 AM

Not to sound like a prick but that's the whole reason behind why he's asking the question I think man?

Rid3_FaM0uS · 06-06-2014, 11:00 AM

I would either use stillen a specs or find the torque specs on the factory damper nismo

12nismo · 06-06-2014, 12:09 PM

Of course I have searched all around and found nothing on the tq specs for the NST kit, and the point of this thread is to ask people who have installed the NST kit to weigh in on what they torqued it to, but thanks shotgungho for your useless comment, lol. I also tried contacting NST by phone and email with no reply (no surprise there, lol). The main thing that threw me was that the tq specs on the factory pulley and the Stillen pulley are a little different. I will be installing thi kit tomorrow and if I can't find any specifics for the NST kit, I'll just use the tq specs from the Stillen pulley will be the closest in spec to the NST pulley.

shotgungho · 06-06-2014, 01:00 PM

ah that's why you're going to jtran, ron knows the specs, he's done it...at least on a 350. see ya there

gbrettin · 06-06-2014, 01:01 PM

I'm interested in the tq specs too.

... And I would have had them too if someone posted them

SouthArk370Z · 06-06-2014, 01:14 PM

Assuming it's a metal pulley (can't imagine if not being metal), then the pulley itself has nothing to do with the torque specs. It's all about the bolt (fastener).

1slow370 · 06-06-2014, 03:15 PM

download the fsm and look up the spec? too hard? ok well it is 33ftlbs plus 90degrees. tighten the pulley to 33ft.lbs. with a torque wrench then mark it and turn it another 90 degrees with a breaker bar.

Also if you are following the manual the bolt is non reusable and should be lubed with engine oil lightly prior to instal

DEpointfive0 · 06-06-2014, 03:21 PM

Quote:

Originally Posted by 1slow370

download the fsm and look up the spec? too hard? ok well it is 33ftlbs plus 90degrees. tighten the pulley to 33ft.lbs. with a torque wrench then mark it and turn it another 90 degrees with a breaker bar.

Also if you are following the manual the bolt is non reusable and should be lubed with engine oil lightly prior to instal

Shít... I reused it... Many, MANY times... Without oil too... Lol

Rid3_FaM0uS · 06-06-2014, 03:25 PM

Nissan also claims the VVEL DC motors are non reusable too slow but they are lol. Thank you for pointing him in the right direction. As Arc said you're not looking for torque specs on the pulley rather the specs to the crank pulley bolt. The pulley is steel sleeved on the back side iirc so by tightening it using the factory specs you shouldn't smash or alter the mating surface between the crank and the pulley.

1slow370 · 06-06-2014, 03:32 PM

Yeah most people reuse it so i made it a sub note. You should put oil or antisieze on the reads and under the head tho.

Sent from my HTCONE using Tapatalk

SouthArk370Z · 06-06-2014, 04:12 PM

I'm not familiar with how the crank bolt is constructed so maybe reusing it is OK but the "quarter turn more" part tells me it's not a good idea. I don't reuse "non-reusable" fasteners and will replace any fastener in a heartbeat if it looks/feels the least bit wonky. Especially on the drive train, suspension, or brakes. Fasteners are too cheap to take chances. And use the proper grade - higher grade fasteners are not necessarily better for the application.

1slow370 · 06-06-2014, 04:15 PM

on that note the bolt costs around 5.12 plus shipping from courtesy It is a torque to yield so technically it should not be used more than once but as I said most reuse it anyway and it works.

http://www.courtesyparts.com/12303a-...-p-616551.html

06-05-2014, 02:22 PM	#1 (permalink)
12nismo Base Member Join Date: Apr 2012 Location: Houston, TX Posts: 153 Drives: 2012 370z nismo Rep Power: 15	Torque specs for NST crank pulley install Does anyone know what the torque specs are for the NST Crank pulley? I see that the Stillen one says to torque to 33 ft lbs and then tighten the crank bolt an additional 90 degrees. I assume the NST and Stillen are pretty much the same but is there anyone who has experience with the NST kit specifically? Thanks! __________________ nismo Z34 12 0209 JTran Motorsports//Stillen//Fast Intentions//EcuTek//Z1 Motorsports//Eibach//BRIDE //Zspeed//Carbon Signal//Houston Halos//Southbend//Whiteline//TWM//NonStopTuning//Doran Racing

06-06-2014, 08:08 AM	#2 (permalink)
shotgungho Base Member Join Date: Jun 2013 Location: Houston Posts: 38 Drives: your gf wild Rep Power: 11	have you even tried calling NST? or the search button? or asking someone who's done it before? jeez __________________ "I have 1000 Years of Power" 2012 Black Cherry Touring Sport AAM Short Tails \|\| FI Test Pipes \|\| Stillen CAI \|\| Kickass Driver

06-06-2014, 10:59 AM	#4 (permalink)
Rid3_FaM0uS Track Member Join Date: Apr 2012 Location: Wapakoneta, Ohio Posts: 506 Drives: 2011 BS Nismo 370z Rep Power: 44	Not to sound like a prick but that's the whole reason behind why he's asking the question I think man? 12nismo and shotgungho like this. __________________ Always under construction. . .

06-06-2014, 11:00 AM	#5 (permalink)
Rid3_FaM0uS Track Member Join Date: Apr 2012 Location: Wapakoneta, Ohio Posts: 506 Drives: 2011 BS Nismo 370z Rep Power: 44	I would either use stillen a specs or find the torque specs on the factory damper nismo __________________ Always under construction. . .

06-06-2014, 12:09 PM	#6 (permalink)
12nismo Base Member Join Date: Apr 2012 Location: Houston, TX Posts: 153 Drives: 2012 370z nismo Rep Power: 15	Of course I have searched all around and found nothing on the tq specs for the NST kit, and the point of this thread is to ask people who have installed the NST kit to weigh in on what they torqued it to, but thanks shotgungho for your useless comment, lol. I also tried contacting NST by phone and email with no reply (no surprise there, lol). The main thing that threw me was that the tq specs on the factory pulley and the Stillen pulley are a little different. I will be installing thi kit tomorrow and if I can't find any specifics for the NST kit, I'll just use the tq specs from the Stillen pulley will be the closest in spec to the NST pulley. __________________ nismo Z34 12 0209 JTran Motorsports//Stillen//Fast Intentions//EcuTek//Z1 Motorsports//Eibach//BRIDE //Zspeed//Carbon Signal//Houston Halos//Southbend//Whiteline//TWM//NonStopTuning//Doran Racing

06-06-2014, 01:00 PM	#7 (permalink)
shotgungho Base Member Join Date: Jun 2013 Location: Houston Posts: 38 Drives: your gf wild Rep Power: 11	ah that's why you're going to jtran, ron knows the specs, he's done it...at least on a 350. see ya there 12nismo likes this. __________________ "I have 1000 Years of Power" 2012 Black Cherry Touring Sport AAM Short Tails \|\| FI Test Pipes \|\| Stillen CAI \|\| Kickass Driver

06-06-2014, 01:01 PM	#8 (permalink)
gbrettin A True Z Fanatic Join Date: Oct 2010 Location: Portage, MI Posts: 2,238 Drives: Tricycle Rep Power: 542172	I'm interested in the tq specs too. ... And I would have had them too if someone posted them

06-06-2014, 01:14 PM	#9 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324197	Assuming it's a metal pulley (can't imagine if not being metal), then the pulley itself has nothing to do with the torque specs. It's all about the bolt (fastener). DEpointfive0, Cbtech and quickboat like this. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

06-06-2014, 03:15 PM	#10 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	download the fsm and look up the spec? too hard? ok well it is 33ftlbs plus 90degrees. tighten the pulley to 33ft.lbs. with a torque wrench then mark it and turn it another 90 degrees with a breaker bar. Also if you are following the manual the bolt is non reusable and should be lubed with engine oil lightly prior to instal __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

06-06-2014, 03:25 PM	#12 (permalink)
Rid3_FaM0uS Track Member Join Date: Apr 2012 Location: Wapakoneta, Ohio Posts: 506 Drives: 2011 BS Nismo 370z Rep Power: 44	Nissan also claims the VVEL DC motors are non reusable too slow but they are lol. Thank you for pointing him in the right direction. As Arc said you're not looking for torque specs on the pulley rather the specs to the crank pulley bolt. The pulley is steel sleeved on the back side iirc so by tightening it using the factory specs you shouldn't smash or alter the mating surface between the crank and the pulley. __________________ Always under construction. . .

06-06-2014, 03:32 PM	#13 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	Yeah most people reuse it so i made it a sub note. You should put oil or antisieze on the reads and under the head tho. Sent from my HTCONE using Tapatalk DEpointfive0 likes this. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

06-06-2014, 04:12 PM	#14 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324197	I'm not familiar with how the crank bolt is constructed so maybe reusing it is OK but the "quarter turn more" part tells me it's not a good idea. I don't reuse "non-reusable" fasteners and will replace *any* fastener in a heartbeat if it looks/feels the least bit wonky. Especially on the drive train, suspension, or brakes. Fasteners are too cheap to take chances. And use the proper grade - higher grade fasteners are not necessarily better for the application. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

06-06-2014, 04:15 PM	#15 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	on that note the bolt costs around 5.12 plus shipping from courtesy It is a torque to yield so technically it should not be used more than once but as I said most reuse it anyway and it works. http://www.courtesyparts.com/12303a-...-p-616551.html __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

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