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Camaro V6 LLT Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 07-06-2012, 03:02 PM   #376
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I was just wondering what these four do-dads are and used for thanks!
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Old 07-06-2012, 05:08 PM   #377
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Those are spacers. Place them under the plenum lid, to be held in place by the 4 center bolts. Use RTV on both sides to seal. They keep the bolts from distorting the lid when you tighten them down.

Don't let them fall into your IM when you're sliding in the bolts!

A helpful tip is to use the lttle black plastic sleeves in the plenum lid holes to keep them centered until secure.
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Old 07-06-2012, 05:45 PM   #378
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Thanks ventmaster, unfortuently I think the spacer fell into the block, should I be concerned about it being tough to fish out? I'm really pissed at my self :(

Edit Nevermind I didn't, all is good in the world now lol
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Old 07-06-2012, 06:33 PM   #379
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anybody hearing a sound whenever you kinda press on it? I really cant describe it but if you guys dont hear anything at all then maybe i did somethin wrong. Maybe im just hearin more of the motor cause i took the cover off? Im not sure, please help
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Old 07-09-2012, 09:28 PM   #380
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FYI-
If you installed the Mace 25mm and Plenum spacer check the rear top Plenum bolt.
I installed my ported Im and spacers this weekend and noticed while at idle a noise like tapping. First thing i thought great i must have dropped something in the plenum cover because it was coming from there.

What I found out tonight is the noise i was getting inside the cabin with windows rolled up was the rear plenum cover bolt head hitting the metal right under the cowling. It was metal against metal due to the tight clearance.

I pushed up on the metal and used some deadmat sound deadener and noise disappeared. But the metal up alittle too. When you close the hood down thats when the hood pushes down on the metal causing it to vibrate thru the cabin..
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Old 07-11-2012, 10:11 AM   #381
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Need some help as I'm not at home right now, I know I need a 13mm swivel wrench but was size torquing socket wrench do I need? Also do I need any other tools?

Thanks, Paul
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Old 07-11-2012, 10:37 AM   #382
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Torque wrench with a 10-70ft/lb range is good. Keep in mind the wider the range, the greater the inaccuracy.

10mm socket for the plenum cover bolts should do it .
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Old 07-11-2012, 02:00 PM   #383
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Also make sure that you guys properly used the gasket maker correctly. You could always buy another OEM plenum cover gasket and use it on both side instead of gasket maker. Chevy camaro gaskets are actually top notch. Better than most gaskets car makers use and been using.

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Old 07-11-2012, 02:42 PM   #384
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Quote:
Originally Posted by MACE_ENG View Post
Also make sure that you guys properly used the gasket maker correctly. You could always buy another OEM plenum cover gasket and use it on both side instead of gasket maker. Chevy camaro gaskets are actually top notch. Better than most gaskets car makers use and been using.

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I have 2 gaskets to use with the installation of the plenum cover as I bought a replacement manifold for porting - I was going to use the RTV on the plenum cover spacers though (the little cylinder shaped things that I got with the spacer itself as shown in post #376) - is that required?
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Last edited by GoPaul; 07-11-2012 at 02:52 PM.
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Old 07-11-2012, 03:27 PM   #385
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Quote:
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I have 2 gaskets to use with the installation of the plenum cover as I bought a replacement manifold for porting - I was going to use the RTV on the plenum cover spacers though (the little cylinder shaped things that I got with the spacer itself as shown in post #376) - is that required?
Gopaul, refer to post 377
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Old 07-11-2012, 07:06 PM   #386
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Gopaul, refer to post 377
yeah I read that but was just wondering from Mace whether it was actually needed
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Old 07-11-2012, 09:18 PM   #387
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yeah I read that but was just wondering from Mace whether it was actually needed
Ohh my bad I personally would say it would be, so it wouldn't distort of
Mess up the plenum cover
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Old 10-21-2012, 09:58 AM   #388
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Sorry to bring this back up but to what torque do the plenum cover bolts need to be tightened to? The IM was 18ft/lb but can't find/remember the plenum
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Old 10-21-2012, 11:31 AM   #389
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Sorry to bring this back up but to what torque do the plenum cover bolts need to be tightened to? The IM was 18ft/lb but can't find/remember the plenum

the same, 18
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Old 10-21-2012, 11:52 AM   #390
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So is this a worth while mod still? Not knocking anyone but seemed so many people jumped on board without any proven gains or usefullness when this originally came out. Not saying I'm expecting hp gains, I'm just wondering if it is even worth getting other than to add to a mod list.
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Old 10-21-2012, 04:57 PM   #391
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Quote:
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Sorry to bring this back up but to what torque do the plenum cover bolts need to be tightened to? The IM was 18ft/lb but can't find/remember the plenum
18ft/lbs has been successfully used on the plenum cover but...
I snapped one oy my bolts when torquing to that level (it was a re-torque when installing a second time), and IMHO it may be more than necesssary for the 8 plenum cover bolts.

After that, I've been using 12ft/lbs without issue.

I also decided to do without the potential gains of the plenum spacer due to the height of the IM with my Mace 25mm. Just my preference (or laziness).
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Old 10-21-2012, 08:42 PM   #392
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I don't know what the torque spec for the eight cover bolts is exactly, but 18lb-ft is excessive for an M6 bolt, IMO. I settled on 10lb-ft, and creeped up on it gradually. I wouldn't be surprised if it is 7lb-ft like the TB bolts. 18lb-ft is the spec for the six IM mounting bolts - they are M8. Just make sure the four spacers are in place when tightening those four M8s that pass through the cover. You'll crack the cover for sure - it's happened on here...
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Old 05-04-2013, 10:18 PM   #393
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Anybody have a link on how to take off that plastic part of the bottom of the windshield that is right above the plenum spacer? I need to tighten the back bolt asap cause it is hitting that metal and its making a noise after I installed this.
Anybody else have this problem?
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Old 05-05-2013, 12:29 AM   #394
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Anybody have a link on how to take off that plastic part of the bottom of the windshield that is right above the plenum spacer? I need to tighten the back bolt asap cause it is hitting that metal and its making a noise after I installed this.
Anybody else have this problem?
Had the same problem but i just took off the manifold and tightened it...good to go after that
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Old 05-05-2013, 12:43 AM   #395
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so much work for one stupid tiny bolt...
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Old 05-05-2013, 07:37 AM   #396
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so much work for one stupid tiny bolt...
Yepp that rattling drove me insane though you could also put some fat mat under the cowl between the bolt like some people have done
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Old 06-11-2013, 11:16 PM   #397
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So I bought a plenum spacer from a member on here, used. He sent me the spacer and 6 really long bolts, I went to install it today with all of the stock bolts and it sounded like a vacuum and seemed like it did not seal properly. The car and engine would shake violently.

This is the order i put them in from top to bottom
1. plenum cover
2. Gasket maker( the right stuff)
3. Plenum spacer
4. The silver thing that was already with the car in between the cover and the head of the motor
5. then under that silver thing was the motor
Is this right? and why is my car shaking, and why is there a vacuum like sound?
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Old 06-12-2013, 03:05 AM   #398
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Yepp that rattling drove me insane though you could also put some fat mat under the cowl between the bolt like some people have done
dude I freakin took the manifold out, took that bolt out, sanded it down, tightened it as hard as I could, and the noise is still there sometimes. I should have just taken it out.
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Old 12-13-2013, 03:21 AM   #399
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I just installed the 25mm spacer n the car is going crazy looks like is struggling or trying to get used to the new set up? Is it supposed to do that? N it started reving while it was idleling
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Old 12-13-2013, 02:26 PM   #400
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I just installed the 25mm spacer n the car is going crazy looks like is struggling or trying to get used to the new set up? Is it supposed to do that? N it started reving while it was idleling
did you disconnect the battery while you did it?

it will take a few miles of easy driving to get to where it is happy!
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