91 nsx engine whirring noise - 2016+ Acura NSX Forum
 
LinkBack Thread Tools
post #1 of 4 (permalink) Old 08-01-2013, 01:43 PM Thread Starter
Junior Member
 
Join Date: Aug 2013
Posts: 1
91 nsx engine whirring noise

My 91 with 50,000 miles is an occasional driver. Kept indoors and warm when not being driven. To be prudent I finally had the timing belt and associated items replaced by a skilled responsible independent mechanic.
He found everything including the old belt to be in excellent shape. Nothing showed and signs of significant deterioration.
All parts installed were oem and were direct replacements except there was one belt cover section that was replaced by an updated version. He was not able to replace the cam seals which showed no signs of leakage.
The motor now emanates a whirring whistling sound ? It "seems" to come on more so when the engine warns up and follow rpm's.
And to be coming from the belt cover side of the motor and not from any ancillary component. He says everything went back together just right with no strain or stretch required.
Also and probably independent of this situation is the fact that the motor does not run smoothly at idle. To be fair it has loped along not holding an even Idle occasionally even before recent work which included new plugs and one plug coil replacement and some AC Ventilation work.
The valves could stand to be adjusted but are close to tolerance.
Does anyone have any ideas where next to look on either of these?
gag50 is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 03-20-2014, 11:40 AM
Senior Member
 
Join Date: Jul 2012
Posts: 1,031
Since this was posted a while ago, do you have the issue resolved by now?



|\|SX is offline  
post #3 of 4 (permalink) Old 05-16-2014, 05:53 PM
Senior Member
 
Join Date: Jul 2012
Posts: 245
the mechanic can't diagnose a noise? you sure you have a good mechanic?
cfrp is offline  
Sponsored Links
Advertisement
 
post #4 of 4 (permalink) Old 05-20-2014, 06:40 PM
Senior Member
 
Join Date: Jul 2012
Posts: 1,031
Hopefully he has found a better mechanic by now.



|\|SX is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the 2016+ Acura NSX Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome