Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk > S Chassis

S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


Reply
 
Thread Tools Display Modes
Old 05-25-2019, 08:02 PM   #1
btj_S13
 
Join Date: Apr 2019
Location: South Carolina
Age: 26
Posts: 13
Trader Rating: (0)
btj_S13 is an unknown quantity at this point
Feedback Score: 0 reviews
Rattling noise on deceleration

I've been having a strange rattling/buzzing noise heard while decelerating after mild/hard acceleration. I don't hear it after light acceleration. Definitely sounds like it's coming from engine bay. I've double checked my downpipe/exhaust. The noise does not go away when the clutch is pressed. It seems to go away around ~2500-2800 RPM. This is a fairly recently rebuilt engine, completed around ~10k miles ago.

Does anyone have any ideas on where to begin looking to fix this noise? Almost every thread i've seen while searching is transmission or diff related noises on decel, which I don't think is the case for me.
btj_S13 is offline   Reply With Quote
Sponsored Links
Old 05-26-2019, 01:43 AM   #2
Kingtal0n
Post Whore!
 
Kingtal0n's Avatar
 
Join Date: Jul 2005
Location: South Florida
Age: 38
Posts: 4,646
Trader Rating: (17)
Kingtal0n has a reputation beyond reputeKingtal0n has a reputation beyond reputeKingtal0n has a reputation beyond reputeKingtal0n has a reputation beyond reputeKingtal0n has a reputation beyond reputeKingtal0n has a reputation beyond reputeKingtal0n has a reputation beyond reputeKingtal0n has a reputation beyond reputeKingtal0n has a reputation beyond reputeKingtal0n has a reputation beyond reputeKingtal0n has a reputation beyond repute
Feedback Score: 17 reviews
Send a message via AIM to Kingtal0n
are you talking about a noise in 4th gear only during decel between a range of rpm

doesnt sound like it, but just checking because there is one particular decel 4th gear noise I think I've heard all the time
Kingtal0n is offline   Reply With Quote
Old 05-26-2019, 05:21 AM   #3
btj_S13
 
Join Date: Apr 2019
Location: South Carolina
Age: 26
Posts: 13
Trader Rating: (0)
btj_S13 is an unknown quantity at this point
Feedback Score: 0 reviews
No, i'm sure I could hear it in all gears, but it's most the acceleration (1-2-3).
btj_S13 is offline   Reply With Quote
Old 05-26-2019, 08:23 AM   #4
[240sx]
Zilvia Addict
 
Join Date: Oct 2013
Location: Highdesert
Posts: 849
Trader Rating: (1)
[240sx] has a reputation beyond repute[240sx] has a reputation beyond repute[240sx] has a reputation beyond repute[240sx] has a reputation beyond repute[240sx] has a reputation beyond repute[240sx] has a reputation beyond repute[240sx] has a reputation beyond repute[240sx] has a reputation beyond repute[240sx] has a reputation beyond repute[240sx] has a reputation beyond repute[240sx] has a reputation beyond repute
Feedback Score: 1 reviews
I got the same noise/ situation, during 3k+ RPM engine braking. Mine's coming from the heat shield on the Cat.(S14)
[240sx] is offline   Reply With Quote
Old 07-04-2019, 05:35 AM   #5
spitefulcheerio
Leaky Injector
 
Join Date: Jul 2018
Location: Florida
Posts: 73
Trader Rating: (2)
spitefulcheerio has a spectacular aura aboutspitefulcheerio has a spectacular aura aboutspitefulcheerio has a spectacular aura aboutspitefulcheerio has a spectacular aura aboutspitefulcheerio has a spectacular aura aboutspitefulcheerio has a spectacular aura aboutspitefulcheerio has a spectacular aura about
Feedback Score: 2 reviews
What exhaust are you running and how big? My 3" straight pipe was rattling against my frame rail because of worn out hangers. Some Apexi hangers with hose clamps wrapped around them super tight did the trick
spitefulcheerio is offline   Reply With Quote
Old 07-05-2019, 07:43 AM   #6
tuzzio
Nissanaholic!
 
tuzzio's Avatar
 
Join Date: Oct 2013
Location: Western Mass.
Posts: 2,254
Trader Rating: (3)
tuzzio has a reputation beyond reputetuzzio has a reputation beyond reputetuzzio has a reputation beyond reputetuzzio has a reputation beyond reputetuzzio has a reputation beyond reputetuzzio has a reputation beyond reputetuzzio has a reputation beyond reputetuzzio has a reputation beyond reputetuzzio has a reputation beyond reputetuzzio has a reputation beyond reputetuzzio has a reputation beyond repute
Feedback Score: 3 reviews
My car does something similar, and i'm pretty sure its cause my exhaust touches the floor. What do you run for mounts? I swapped out my solid avid trans mount for a poly ISR and its night and day better
tuzzio is offline   Reply With Quote
Old 07-05-2019, 10:44 AM   #7
spitefulcheerio
Leaky Injector
 
Join Date: Jul 2018
Location: Florida
Posts: 73
Trader Rating: (2)
spitefulcheerio has a spectacular aura aboutspitefulcheerio has a spectacular aura aboutspitefulcheerio has a spectacular aura aboutspitefulcheerio has a spectacular aura aboutspitefulcheerio has a spectacular aura aboutspitefulcheerio has a spectacular aura aboutspitefulcheerio has a spectacular aura about
Feedback Score: 2 reviews
Quote:
Originally Posted by tuzzio View Post
My car does something similar, and i'm pretty sure its cause my exhaust touches the floor. What do you run for mounts? I swapped out my solid avid trans mount for a poly ISR and its night and day better
Only problem with those ISR ones is they stretch out pretty fast. The apexi ones are definitely the move
spitefulcheerio is offline   Reply With Quote
Reply

Bookmarks


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 06:57 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
vB.Sponsors
Copyright © 1998 - 2019, Zilvia.net™