engine noise - TCCoA Forums
 
LinkBack Thread Tools
post #1 of 7 (permalink) Old 04-30-2018, 04:42 PM Thread Starter
5th Gear Poster
 
gordonm1's Avatar
 
Join Date: Nov 2012
Location: Yakima, WA
Posts: 478
engine noise

I noticed a rapid clicking/ticking noise and it sounds like it is coming from the alternator. Does that make any sense or a pulley? Smog pump is bypassed. Smaller belt was used during bypass and it was pretty tight.


I don't recall ever replacing the alternator. Ticks are more rapid than a former exhaust leak.

1992 Tbird LX 5.0, 3.73 gears, 1995 Cobra intake, deleted air silencer, 2.5" mandrel bent dual exhaust, SCP shorty headers. Updated four-hole fuel injectors. SK shift kit in AOD. Vogtland 0.9" springs, Tokico and Bilstein shocks.
gordonm1 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 04-30-2018, 05:08 PM
Humble MN12 Genius
Super Moderator
 
XR7-4.6's Avatar
 
Join Date: Apr 2006
Location: Roselle IL
Posts: 16,580
Garage
Send a message via Yahoo to XR7-4.6
Remove the serpentine belt and see if the noise goes away, that will help narrow down where it may be coming from.

-Matt
XR7-4.6 is offline  
post #3 of 7 (permalink) Old 04-30-2018, 05:21 PM
Seasoned PostWhore
 
dDUBb's Avatar
 
Join Date: Dec 2006
Location: Nor-Cal
Age: 38
Posts: 4,121
Garage
Tick is proportionate to engine RPM ? Like Matt says, take off the belt, and spin the pulleys by hand to see if you can "feel" any worn bearings. Also might try a stethoscope / long screwdriver with your ear to the handle ...
dDUBb is offline  
Sponsored Links
Advertisement
 
post #4 of 7 (permalink) Old 05-02-2018, 07:21 PM Thread Starter
5th Gear Poster
 
gordonm1's Avatar
 
Join Date: Nov 2012
Location: Yakima, WA
Posts: 478
Removed the belt and noise is gone. Removed the alternator and did not notice a problem with the bearings or other pulleys. Priced a new alternator and ordered brushes to try first. Alternator tested good at parts store.

1992 Tbird LX 5.0, 3.73 gears, 1995 Cobra intake, deleted air silencer, 2.5" mandrel bent dual exhaust, SCP shorty headers. Updated four-hole fuel injectors. SK shift kit in AOD. Vogtland 0.9" springs, Tokico and Bilstein shocks.
gordonm1 is offline  
post #5 of 7 (permalink) Old 05-08-2018, 08:48 PM Thread Starter
5th Gear Poster
 
gordonm1's Avatar
 
Join Date: Nov 2012
Location: Yakima, WA
Posts: 478
Alternator back in with just brushes replaced and no noise. Old brushes were worn but I did not see breakage or cracks.

I had bypassed the smog pump with a shorter belt but I couldn't remember the routing so I used an original belt and included the smog pump which I guess will freewheel. I started to remove the pump but when it was ready to come out I could not see a way it would fit though the available room so I need the belt routing and easiest stuff to remove for smog pump removal. To me it looked like the alternator bracket and the belt tensioner. My shorter belt was about 93 inches.

I am kind of lucky I did not remove the pump because I ended up using the original belt.

The issue is temporarily resolved, for about ten bucks and a gallon of sweat.

1992 Tbird LX 5.0, 3.73 gears, 1995 Cobra intake, deleted air silencer, 2.5" mandrel bent dual exhaust, SCP shorty headers. Updated four-hole fuel injectors. SK shift kit in AOD. Vogtland 0.9" springs, Tokico and Bilstein shocks.
gordonm1 is offline  
post #6 of 7 (permalink) Old 05-08-2018, 10:55 PM
Seasoned PostWhore
 
S4gunn's Avatar
 
Join Date: Dec 2010
Location: SF, CA
Age: 41
Posts: 2,611
Garage
Quote:
Originally Posted by gordonm1 View Post
Alternator back in with just brushes replaced and no noise. Old brushes were worn but I did not see breakage or cracks.

I had bypassed the smog pump with a shorter belt but I couldn't remember the routing so I used an original belt and included the smog pump which I guess will freewheel. I started to remove the pump but when it was ready to come out I could not see a way it would fit though the available room so I need the belt routing and easiest stuff to remove for smog pump removal. To me it looked like the alternator bracket and the belt tensioner. My shorter belt was about 93 inches.

I am kind of lucky I did not remove the pump because I ended up using the original belt.

The issue is temporarily resolved, for about ten bucks and a gallon of sweat.
http://forums.tccoa.com/8-engine-5-0...placement.html

My TCCOA iTrader Rating: (44 / 100% w/ 50+ transactions)

24 Hours of Lemons 2017 Sear Pointless Organizer's Choice
2018 Upgrade: does your TBIRD make Fritos? Mine does
http://goo.gl/csaet4
S4gunn is offline  
post #7 of 7 (permalink) Old 05-15-2018, 12:58 PM Thread Starter
5th Gear Poster
 
gordonm1's Avatar
 
Join Date: Nov 2012
Location: Yakima, WA
Posts: 478
Thank you S4gunn for the mustang routing link.

When I got the stock belt on, I realized I may have missed a way to try the shorter bypass belt. I will run stock for a few miles to see if the alternator noise stays gone since I have it this way already. Then go back and try the bypass again.

This may have been the thread where I got Rayo's routing diagram but alas, his photos seem to victims of Photobucket like mine.

1992 Tbird LX 5.0, 3.73 gears, 1995 Cobra intake, deleted air silencer, 2.5" mandrel bent dual exhaust, SCP shorty headers. Updated four-hole fuel injectors. SK shift kit in AOD. Vogtland 0.9" springs, Tokico and Bilstein shocks.
gordonm1 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TCCoA Forums 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











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

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