I Cracked my Plenum
Yeah you are right it mine does say that, needless to say when I put my APS plenum on I will torque the outside bolts to around 100 inch lbs and the middle bolts to around 60 inch lbs, does that sound right?
Originally Posted by Lerxst
Maybe modify your title so someone doesn't get the wrong impression.
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From: SoKal Desert
Originally Posted by DavesZ#3
That's not what my manual shows. If you see the diagram below, they show 9-10 ft-lbs (108 - 120 in-lbs) for all of the bolts that hold the upper collector. I just got finished working with mine yesterday and only torqued them to 60 in-lbs only because I didn't like the feel of going much higher that than.
That pic is from the 2004 manual. Maybe Nissan discovered that the torque on the 6 inside bolts was too much and backed them off to 60 in-lbs in the later manuals.
That pic is from the 2004 manual. Maybe Nissan discovered that the torque on the 6 inside bolts was too much and backed them off to 60 in-lbs in the later manuals.
All the manuals from 2003 to 2005 indicate the same torque (9 - 10 ft-lbs) for all upper and lower collector fasteners. Also the 44 - 61 in-lb torque value for the collector "stud bolts" is the same in all the manuals.
Aftermarket plenum/spacer suppliers may modify these torque values to meet their products specific requirements. In my experience 60 in-lbs may not be enough torque to prevent vacuum leaks after the engine experiences a few thermal cycles.
Last edited by DaveO; Oct 9, 2005 at 08:46 PM.
Oops, my bad DaveO. I realized that the diagram refers to the nut torque of 9-10 fts-lbs but the section...
If stud bolts were removed, install them and tighten to the torque specified below. 4.9 - 6.9 N·m (0.5 - 0.7 kg-m, 44 - 61 in-lb)
refers to the studs themselves, not the nuts.
If stud bolts were removed, install them and tighten to the torque specified below. 4.9 - 6.9 N·m (0.5 - 0.7 kg-m, 44 - 61 in-lb)
refers to the studs themselves, not the nuts.
Originally Posted by alininger2001
I really feel stupid now guys, this is the first ever install I have screwed up, had I torqued the bolts to only 60 inch lbs I would be driving right now with my beloved AAM spacer in this perfect texas weather. I would like to give props to dave at AAM, now that is customer service. Dave don't worry about sending me a new plenum, we are good, sorry about the initial post. If anyone wants an AAM angled spacer with no bolts or gaskets, pm me I will let it go for shipping only, I want someone else to be able to use this product since I can't anymore.
Also, have whoever you sell the spacer to contact me. I will send them all the parts needed for install at no charge.
I will take you up on that dave. I am donating the plenum spacer, not selling it, if you want to send the parts with the plenum, I will give them all to him at once.
By the way guys someone has pm'd me for the spacer it is as good as gone! I wanted it to have a good home.
By the way guys someone has pm'd me for the spacer it is as good as gone! I wanted it to have a good home.
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From: Sydney, Australia
I've cracked my plenum with AAM spacer as well, but that was after polishing it, so that could have weaken it. I also couldn't get the center bolts to seal since the ruber gaskets got torn. After I got a new center upper plenum I used RTV (I think it was blue) gasket sealer around the center bolts and I've only tighten them enough to squize out the RTV. Now i don't get any sress on the plenum and the seal is air tight.
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