whining noise from SR!?!? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

MyNISMO314 · 03-11-2010, 11:38 PM

Looked at an SR20DET today that i was planning on buying ive seen it looks clean sounds really clean at idle BUUTTTT!!!...when you start to drive it and after like 5 minutes at idle it starts to make a really whining noise...i really dont know what it could be im just lost on this one...only thing i can come up with is maybe the turbo is going out since its just a stock t25...ill try to go again tomorrow look at it try to come up with a deal with the guy but until then i want some advice on this and ill try to post a video tomorrow if i go so you guys can see and hear of what im talking about. thanks in advance

Sileighty_85 · 03-12-2010, 12:02 AM

does it whine when boosting?

Turbo probably is shot, Check for shaft play

hassanbakar123 · 03-12-2010, 12:29 AM

could be something in the block, i've seen so motors start to whine from the bottom end once warmed up.

MyNISMO314 · 03-12-2010, 12:43 AM

whines at boost and at no boost...the owner thinks its cams but i just dont understand why the cams would whine or even anything in the block

Sileighty_85 · 03-12-2010, 01:01 AM

Quote:

Originally Posted by MyNISMO314

whines at boost and at no boost...the owner thinks its cams but i just dont understand why the cams would whine or even anything in the block

well the Cams will squeak if you have no oil flowing to the head.

Verify you have oil pressure and oil flowing to the head before driving that car any further

s13drob · 03-12-2010, 02:07 AM

odds are its the belts. check the belts if they have slack. if so just tighten them

MyNISMO314 · 03-12-2010, 11:37 AM

how would the belts be the problem if they were off?

abunai the drifter · 03-12-2010, 12:08 PM

I bet it the timing chain & guides

slider2828 · 03-12-2010, 12:10 PM

Check your belts..... My friends PS belt was slipping when he gas'd it too

MyNISMO314 · 03-12-2010, 04:21 PM

its not the belts for the 5th time they were off and when on they were tight enough for it not to squeek or whine...BUT!!.the turbo has shaft play and an actual sr owner told me its the turbo in its early stages going out

HAWAII · 03-12-2010, 04:26 PM

quick change to T28 double bearing.

MyNISMO314 · 03-12-2010, 04:28 PM

exactly what i was thinking...anybody got a good t28 for sale haha

rocksteady_racer · 03-13-2010, 02:38 PM

Yea I second the turbo but it could be the rod bearings - they do good bad... and then they make a horrific whining noise - then a piston flies out the side of the block... speaking from experience...

s13drob · 03-13-2010, 02:57 PM

wait. you were running it with the belts off? really?

MyNISMO314 · 12-15-2010, 03:04 AM

this was the problem

turbo being held by one bolt and the gasket flapping around creating the whining noise as if you would put a piece of paper between your lips and blow haha

holys14 · 12-15-2010, 07:57 AM

It wouldntve been a rob bearing. I spun a rod bearing literally two weeks ago and its not a whining sound, its more like a knocking sound.. But hey at least you found out the problem, now go to t28

MyNISMO314 · 12-19-2010, 01:40 AM

Quote:

Originally Posted by holys14

it wouldntve been a rob bearing. I spun a rod bearing literally two weeks ago and its not a whining sound, its more like a knocking sound.. But hey at least you found out the problem, now go to t28 :d

i just did just got it running today

03-11-2010, 11:38 PM	#1
MyNISMO314 BANNED Join Date: Aug 2009 Location: STL Age: 35 Posts: 159 Trader Rating: (0) Feedback Score: 0 reviews	whining noise from SR!?!? Looked at an SR20DET today that i was planning on buying ive seen it looks clean sounds really clean at idle BUUTTTT!!!...when you start to drive it and after like 5 minutes at idle it starts to make a really whining noise...i really dont know what it could be im just lost on this one...only thing i can come up with is maybe the turbo is going out since its just a stock t25...ill try to go again tomorrow look at it try to come up with a deal with the guy but until then i want some advice on this and ill try to post a video tomorrow if i go so you guys can see and hear of what im talking about. thanks in advance

03-12-2010, 12:02 AM	#2
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	does it whine when boosting? Turbo probably is shot, Check for shaft play __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

03-12-2010, 12:29 AM	#3
hassanbakar123 Zilvia Junkie Join Date: Apr 2008 Location: san bernardino Posts: 375 Trader Rating: (1) Feedback Score: 1 reviews	could be something in the block, i've seen so motors start to whine from the bottom end once warmed up. __________________ https://www.linkedin.com/in/hassanbakar

03-12-2010, 12:08 PM	#8
abunai the drifter Zilvia Junkie Join Date: Nov 2006 Location: Long Beach CA Age: 39 Posts: 392 Trader Rating: (5) Feedback Score: 5 reviews	I bet it the timing chain & guides __________________ screw you guys im going drifting

03-12-2010, 12:10 PM	#9
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 6,040 Trader Rating: (13) Feedback Score: 13 reviews	Check your belts..... My friends PS belt was slipping when he gas'd it too __________________ Turn and Burn!

03-12-2010, 12:43 AM	#4
MyNISMO314 BANNED Join Date: Aug 2009 Location: STL Age: 35 Posts: 159 Trader Rating: (0) Feedback Score: 0 reviews	whines at boost and at no boost...the owner thinks its cams but i just dont understand why the cams would whine or even anything in the block

03-12-2010, 02:07 AM	#6
s13drob Zilvia Addict Join Date: Jan 2008 Location: socal Posts: 774 Trader Rating: (29) Feedback Score: 29 reviews	odds are its the belts. check the belts if they have slack. if so just tighten them

03-12-2010, 11:37 AM	#7
MyNISMO314 BANNED Join Date: Aug 2009 Location: STL Age: 35 Posts: 159 Trader Rating: (0) Feedback Score: 0 reviews	how would the belts be the problem if they were off?

03-12-2010, 04:21 PM	#10
MyNISMO314 BANNED Join Date: Aug 2009 Location: STL Age: 35 Posts: 159 Trader Rating: (0) Feedback Score: 0 reviews	its not the belts for the 5th time they were off and when on they were tight enough for it not to squeek or whine...BUT!!.the turbo has shaft play and an actual sr owner told me its the turbo in its early stages going out

03-12-2010, 04:26 PM	#11
HAWAII Zilvia Addict Join Date: Jun 2009 Location: Burbank,Ca Age: 49 Posts: 716 Trader Rating: (24) Feedback Score: 24 reviews	quick change to T28 double bearing.

03-12-2010, 04:28 PM	#12
MyNISMO314 BANNED Join Date: Aug 2009 Location: STL Age: 35 Posts: 159 Trader Rating: (0) Feedback Score: 0 reviews	exactly what i was thinking...anybody got a good t28 for sale haha

03-13-2010, 02:38 PM	#13
rocksteady_racer Zilvia Junkie Join Date: Oct 2005 Location: Phila Age: 39 Posts: 544 Trader Rating: (0) Feedback Score: 0 reviews	Yea I second the turbo but it could be the rod bearings - they do good bad... and then they make a horrific whining noise - then a piston flies out the side of the block... speaking from experience...

03-13-2010, 02:57 PM	#14
s13drob Zilvia Addict Join Date: Jan 2008 Location: socal Posts: 774 Trader Rating: (29) Feedback Score: 29 reviews	wait. you were running it with the belts off? really?

12-15-2010, 03:04 AM	#15
MyNISMO314 BANNED Join Date: Aug 2009 Location: STL Age: 35 Posts: 159 Trader Rating: (0) Feedback Score: 0 reviews	this was the problem turbo being held by one bolt and the gasket flapping around creating the whining noise as if you would put a piece of paper between your lips and blow haha

12-15-2010, 07:57 AM	#16
holys14 Zilvia Member Join Date: Nov 2010 Location: pembroke pines Age: 32 Posts: 158 Trader Rating: (0) Feedback Score: 0 reviews	It wouldntve been a rob bearing. I spun a rod bearing literally two weeks ago and its not a whining sound, its more like a knocking sound.. But hey at least you found out the problem, now go to t28