torque specs for exhaust bolts?

harman.khinda · 03-09-2012, 01:36 PM

Hi I just got some CNT downpipes and a y-pipe. Could someone tell me the torque specs for the various bolts and nuts? Also any tips for preventing exhaust leaks?

I installed a y-pipe with new gaskets but put on a thin layer of high temp gasket maker. Now I have an exhaust leak that you can only really hear on a cold start and goes away after a min. I got some new gaskets for the downpipe but is it ok to re-use old gaskets (1 month old) for the y-pipe? or should I go to the dealership and buy some new ones?

edub370 · 03-09-2012, 01:51 PM

just tighten them as hard as u can with a hand wrench. shouldnt have any issues with leaks as long as u can muscle up on a wrench.

forgive me if that sounded redneck, but i wouldnt worry too much about torque specs on an exhaust.

gaskets will by fine to reuse if only a month old

m4a1mustang · 03-09-2012, 01:52 PM

German spec... gutentight.

edub370 · 03-09-2012, 01:54 PM

Quote:

Originally Posted by m4a1mustang

German spec... gutentight.

this

harman.khinda · 03-09-2012, 11:40 PM

haha. gutentight it is. i was mostly worried about overtightening em.

edub370 · 03-09-2012, 11:42 PM

lol no worries. better to ask then do it, than the other way around. but tighten those things down!

Girald · 07-21-2020, 04:18 AM

EM-38 fo the FSM states that 22ft lbs is the torque spec (to tighten a nut and fasten an exhaust manifold to the rods fastened to the crank case).

------------------------------

EM 39 states that the tightening sequence is as follows:
( the sequence as i post it is relative to the picture)

Drivers side

<--- Front of car
3286
514 (you will go back and tighten "1" as the 7th step)

Passenger side
Front of car --->
6283
415 (you will go back and tighten "1" as the 7th step)

------

The bolt rods appear to be in the same order.

Torque specs for them on EM 38
11 ft lbs

03-09-2012, 01:36 PM	#1 (permalink)
harman.khinda Enthusiast Member Join Date: Feb 2012 Location: Red Bluff, CA Posts: 378 Drives: 10 Nissan 370 PG 7AT Rep Power: 6723	torque specs for exhaust bolts? Hi I just got some CNT downpipes and a y-pipe. Could someone tell me the torque specs for the various bolts and nuts? Also any tips for preventing exhaust leaks? I installed a y-pipe with new gaskets but put on a thin layer of high temp gasket maker. Now I have an exhaust leak that you can only really hear on a cold start and goes away after a min. I got some new gaskets for the downpipe but is it ok to re-use old gaskets (1 month old) for the y-pipe? or should I go to the dealership and buy some new ones?

03-09-2012, 01:51 PM	#2 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 20	just tighten them as hard as u can with a hand wrench. shouldnt have any issues with leaks as long as u can muscle up on a wrench. forgive me if that sounded redneck, but i wouldnt worry too much about torque specs on an exhaust. gaskets will by fine to reuse if only a month old __________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq

03-09-2012, 01:52 PM	#3 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	German spec... gutentight. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

03-09-2012, 11:42 PM	#6 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 20	lol no worries. better to ask then do it, than the other way around. but tighten those things down! __________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq

07-21-2020, 04:18 AM	#7 (permalink)
Girald Base Member Join Date: Jun 2017 Location: Denver Posts: 135 Drives: 15' 370z SpTech 6MT Rep Power: 3363	EM-38 fo the FSM states that 22ft lbs is the torque spec (to tighten a nut and fasten an exhaust manifold to the rods fastened to the crank case). ------------------------------ EM 39 states that the tightening sequence is as follows: ( the sequence as i post it is relative to the picture) Drivers side <--- Front of car 3286 514 (you will go back and tighten "1" as the 7th step) Passenger side Front of car ---> 6283 415 (you will go back and tighten "1" as the 7th step) ------ The bolt rods appear to be in the same order. Torque specs for them on EM 38 11 ft lbs SouthArk370Z likes this. __________________ AAM tt'ed // Soon: Moving back to the East Coast Last edited by Girald; 08-02-2020 at 08:36 AM.

03-09-2012, 11:40 PM	#5 (permalink)
harman.khinda Enthusiast Member Join Date: Feb 2012 Location: Red Bluff, CA Posts: 378 Drives: 10 Nissan 370 PG 7AT Rep Power: 6723	haha. gutentight it is. i was mostly worried about overtightening em.

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