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Rattle under 800rpm

Old 05-18-2012, 05:58 PM
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Question Rattle under 800rpm

Everytime my rpms drop a little below 800rpm I get a rattley noise coming from the front somewhere. Someone told me it is the exhaust gasket that connects the header to the rest of the exhaust (from what I understood). Does anyone know what exhaust gasket to order? Or is it another problem?
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Old 05-18-2012, 06:28 PM
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Probably be more helpful if you had a audio clip..
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Old 05-18-2012, 06:54 PM
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Check the header heat shielding or Cat. shielding.

Last edited by Vanishing Point; 05-18-2012 at 07:02 PM.
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Old 05-18-2012, 07:05 PM
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It should never be under 800 rpms.....she sounds like it's rattling 'cause it's all dogged out.
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Old 05-18-2012, 07:06 PM
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^^^That's what I was thinkin...
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Old 05-18-2012, 08:46 PM
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800 rpm is pretty low man? But like VP said, check the heat shields... there is a funky gasket that is located where the header pipe connects to the cat... but don't really see how that would rattle? I just changed mine when I put my cat back on...I think it was like $13 bucks?
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Old 05-19-2012, 04:51 AM
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Only guessdimaytin' here'z'I ain' heard'itt, budd'I'd godda go wit'da Jaggsta: Stewie doan belong't 800.
'Figure'da "raddle" izz'a lesser version'a whu'cha hear when'yuh've got some ol' skell shakin'itt'z head'z'itt dieselz before'itt finally shuttz down.
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Old 05-19-2012, 01:26 PM
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I'll make a vid today. but to explain a little better.
The S idles at about 900rpm, sometimes when I engage the clutch the rpms drop to about 700ish rpm back up to 900rpm. I always thought this was normal, but whats not normal is the rattle sound I get whenever the rpms drop below normal idle.
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Old 06-01-2012, 02:22 PM
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Turned out I the spark plug cover got loose..
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Old 06-01-2012, 02:47 PM
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Glad you found it!
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Old 06-01-2012, 07:13 PM
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but whats not normal is the rattle sound I get whenever the rpms drop below normal idle.

you are mistaken. stewie's engine makes all kinda of clatter at ultra low rpms.
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Old 06-02-2012, 04:53 AM
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F22 is pretty smooth at idle but they is a whole lot of metal thrashin' around.

how you get you car to run at 800 rpm?

bb goes to 2000 rpm at cold start and settles into warm idle at 1000. she may drop to 900 for a quick second but i consider idle to be 1000. i has drive a coupla S2000s, and they were the same; but only bb in the last 4 and a half years. we is married.

i get a rattle, vibration if i do not keep the rpm up when starting to move out in 1st gear. i like to move out at 1800-2000.

bb does make an assortment of noises. you get to know 'em. the best noise comes about 7000 rpm.
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Old 06-05-2012, 01:35 PM
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no **** Sherlock. It means you're about the stall...
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Old 06-05-2012, 06:13 PM
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Originally Posted by JDMricist View Post
I'll make a vid today. but to explain a little better.
The S idles at about 900rpm, sometimes when I engage the clutch the rpms drop to about 700ish rpm back up to 900rpm. I always thought this was normal, but whats not normal is the rattle sound I get whenever the rpms drop below normal idle.

you is sure you is got an S2000? you not jerking my leg is you? this ain't what hoppens when you lets out the clutch in an S2000. you let out the clutch at too low rpm and it will stall or vibrate badly; it don't drop to 700 and then back to 900. can't drive an S2000 at 900 rpm. maybe you need to think about this some more? it is hard to drive an S2000 under 3000 rpm. she don't likes it. engagin' the clutch properly happens around 1500-2000 rpm. sorry. i is thinkin' your problem is all inside you head.

from one who knows,

bb
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Old 06-09-2012, 04:32 PM
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You're right about that bb, I totally worded that wrong. Typed that up at work as fast as I could between calls while I was talking to people haha.
I mean when I rev anywhere past 2000rpm wtih the clutch depressed, (not engaged, my bad) the revs will drop down to about 700, vibirate a little for just a second (this is where it would rattle) then back up to 900rpm. Hope that makes more sense. I know it is normal though, I've driven at least 5 s2ks before buying Quicksilver

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Old 06-09-2012, 06:50 PM
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might be able to give you your credibility back. i have been trying to get bb to drop under 900 rpm for the last coupla days. i let out the clutch giving her no gas, shitted all the way up to 6th and eased on the brake. rmp dropped but bb shore didn't like it and put up quite a clatter.
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Old 06-09-2012, 07:02 PM
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Originally Posted by bbcricketta View Post
... shitted all the way up to 6th...but bb shore didn't like it and put up quite a clatter.
Understandably so. Good luck cleaning your seats now, beebs.
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Old 06-10-2012, 06:04 AM
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LOL. i is made typo. still can't get a stock S2000 to run at 700 rpm.

raining here. i will go and give bb a good thrashing in the wet.

no bodily function reference intended. apologies to all offended.



saved by depends.
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Old 06-10-2012, 10:33 PM
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The engine wasn't made to run at 700RPM. I don't think
it does the bearings much good. Funny thing i've found about
my car. The harder I drive it the more it purrs at idle.
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