1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Wierd noise

Thread Tools
 
Search this Thread
 
Old Jul 10, 2013 | 07:18 AM
  #1  
sbeers's Avatar
Thread Starter
Senior Member
Tenured Member 05 Years
 
Joined: Sep 2012
Posts: 403
Likes: 0
From: akron ohio
Wierd noise

So recently woth my new exhaust i can hear iit even more when i press the gas i get this like raddleing sound from my engine? Like a tik tik tik
Super fast ... It still feels like it has normal power and everything I just hate the noise.... Like a constant rattling?
Anyone know or think what it could be?

Thanks
Reply
Old Jul 10, 2013 | 08:01 AM
  #2  
TheRX7Project's Avatar
Daily Beaten
Tenured Member 10 Years
iTrader: (3)
 
Joined: May 2008
Posts: 592
Likes: 3
From: Milwaukee
Did this only happen since you got a new exhaust? Could it be something that was there all along and you just never heard it?
Reply
Old Jul 10, 2013 | 10:11 AM
  #3  
Kaaarl12a's Avatar
Full Member
iTrader: (6)
 
Joined: May 2012
Posts: 249
Likes: 0
From: pennsylvania
My flapper valve on the intake snorkel makes a rattle. Check that.
Reply
Old Jul 10, 2013 | 11:58 AM
  #4  
t_g_farrell's Avatar
Waffles - hmmm good
Tenured Member: 20 Years
Community Favorite
iTrader: (1)
 
Joined: Jul 2004
Posts: 9,250
Likes: 464
From: Lake Wylie, N.C.
Exhaust leak?
Reply
Old Jul 10, 2013 | 12:30 PM
  #5  
DivinDriver's Avatar
1st-Class Engine Janitor
Tenured Member 10 Years
iTrader: (15)
 
Joined: Jun 2008
Posts: 8,376
Likes: 28
From: Chino Hills, CA
Collapsed valve lifter? (just kidding)

Does the speed of the rattle follow the RPM, or is it constant?
Reply
Old Jul 10, 2013 | 03:05 PM
  #6  
sbeers's Avatar
Thread Starter
Senior Member
Tenured Member 05 Years
 
Joined: Sep 2012
Posts: 403
Likes: 0
From: akron ohio
It follows the rpm or whenever. I push the gask its like a super fast thuding . It could be a leak but its coming from the front of the car ? Mabye the headers but idk . Cause i can hear the exhaust from the back perfectly. Just ill use gas and it like thuds with the rpm slightly and how ever much gas. I push down.
Reply
Old Jul 10, 2013 | 07:46 PM
  #7  
Cookboy's Avatar
'85 12a
iTrader: (10)
 
Joined: Jun 2012
Posts: 1,495
Likes: 2
From: Richmond VA
With the car parked and the hood open you can work the throttle and listen more closely, perhaps.
Reply
Old Jul 12, 2013 | 09:42 PM
  #8  
Kentetsu's Avatar
Lives on the Forum
Tenured Member 15 Years
 
Joined: Jun 2004
Posts: 11,359
Likes: 14
From: Grand Rapids Michigan
Your distributor cap is on crooked. You'll need a new cap and rotor now.

If that proves to not be the issue, then check your timing...




.
Reply
Old Jul 12, 2013 | 11:49 PM
  #9  
sbeers's Avatar
Thread Starter
Senior Member
Tenured Member 05 Years
 
Joined: Sep 2012
Posts: 403
Likes: 0
From: akron ohio
Oh wow that might be it but ya it just constantly rattles and more gas more ratttle. Ill teplace that the. See how that goes how hard is it to check the timeing?
Reply
Old Jul 12, 2013 | 11:54 PM
  #10  
LizardFC's Avatar
Rotary Supremacist
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Jan 2004
Posts: 2,910
Likes: 3
From: Maryville, TN
Heat shields on tight and not rubbing anything?
Reply
Old Jul 13, 2013 | 05:55 AM
  #11  
sbeers's Avatar
Thread Starter
Senior Member
Tenured Member 05 Years
 
Joined: Sep 2012
Posts: 403
Likes: 0
From: akron ohio
No heat shield i have headers
Reply
Old Jul 13, 2013 | 09:23 AM
  #12  
wankel=awesome's Avatar
carb whisperer
Tenured Member 15 Years
 
Joined: Jan 2008
Posts: 1,485
Likes: 4
From: Greenfield, Ohio
I have 2 FB's with new RB exhaust systems that make an odd noise too. Its unusual, but according to RB is the new mufflers not being broken in. /shrug

But they also sold me a carb last year with a fat crack in the main body that was "tested" and told me all sorts of **** was wrong with my car, so ill never know haha
Reply
Old Jul 13, 2013 | 12:05 PM
  #13  
sbeers's Avatar
Thread Starter
Senior Member
Tenured Member 05 Years
 
Joined: Sep 2012
Posts: 403
Likes: 0
From: akron ohio
Well i think its the headers its comeing from them or the carb but i doubt it... I never put a new gasket on so thats probley the problem... But wow thats real messed up of them... Why i buy stuff used
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
gxl90rx7
Haltech Forum
6
Jun 30, 2017 11:30 PM
Linda_Lovelace
General Rotary Tech Support
0
Sep 18, 2015 10:04 PM
zxrazorxz
3rd Generation Specific (1993-2002)
2
Sep 14, 2015 07:21 PM




All times are GMT -5. The time now is 10:43 AM.