Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks
Sign in using an external account
Register Forgot Password?


1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 01-12-2004, 07:54 PM
Michael Littman Michael Littman is offline
Senior User
 
Join Date: Dec 2003
Location: Homestead, FL USA
Posts: 248
Michael Littman is starting off with a positive reputation.
Replacing Belt Tensioner? '94 F150 4.9l

I noticed a post about belt whine. I too have a really bad whine that seems to be getting worse. I cannot pin point where it is coming from. I have 160,000 miles on my F150 4.9l '94 and have never replaced the tensioner. What does replacing it entail? Is this a reverse thread nut? It looks to me like a simple matter of getting a socket/breaker bar on there and taking it off but I know there has to be more to this job that this. Any help, clues or ideas I would be appreciative!
Reply With Quote
  #2 (permalink)  
Old 01-13-2004, 05:19 AM
missouguy missouguy is offline
Elder User
 
Join Date: Oct 2003
Posts: 631
missouguy is starting off with a positive reputation.
I changed one on a '92 302. It was just as you said, a left hand thread. I just put the socket on it, and turned it to the left to take the belt off. Then the other way to remove the tensioner. Piece of cake. Not too expensive either. I got mine at a Ford dealer.

Good Luck

Frank
__________________
'02 F250 SD SB CC 7.3 PSD 4R100
Reply With Quote
  #3 (permalink)  
Old 01-13-2004, 05:22 PM
Michael Littman Michael Littman is offline
Senior User
 
Join Date: Dec 2003
Location: Homestead, FL USA
Posts: 248
Michael Littman is starting off with a positive reputation.
A little follow up and some questions: I work at a High School that has an excellent mechanics teacher. I swung my whining truck by his room this morning. The moment he looked at the engine he said the noise was a belt noise and that I ought to spray some belt dressing on the belt. I was sort of dubious of this but went ahead and bought the dressing and tried it out this afternoon. I gave two good squirts to the top and bottom of the belt as the engine was running. The squeel has abated for the moment so I hope this did the trick. Two odd things happened as I sprayed the belt dressing on the belt. First I noticed the tensioner descend at least 2-3 inches....like it was getting more purchase on the belt. This only happened once. The other odd thing was that the belt tried to ride up and off the power steering pump pulley as I sprayed the belt near that location. I had to turn the engine off and thumb the belt back into place lest it fly off. I was wondering what y'all made of the belt ride up and the descending tensioner? I have not replaced the tensioner as it appears to be working fine. I have a new belt on hand but I want to see if the dressing does the trick on the old belt as it is only about a year old or so. What do y'all think?
Reply With Quote
  #4 (permalink)  
Old 01-13-2004, 06:43 PM
ddzmann68 ddzmann68 is offline
Freshman User
 
Join Date: Dec 2003
Location: Mechanicsburg, PA
Posts: 37
ddzmann68 is starting off with a positive reputation.
I had the same problem on my 90' 4.9L. I tried the belt dressing and the same thing happend. Only I didn't notive the belt slip, when I drove the truck the next time a pice was cut off along the whole belt. When I replaced the tensioner the noise stoped.
__________________
1990 F-150 2wd 4.9L. board .30 over Melling cam Clifford headers, Dynomax Super Turbo system and Magnaflow high flow cat.
Reply With Quote
  #5 (permalink)  
Old 01-13-2004, 07:54 PM
Michael Littman Michael Littman is offline
Senior User
 
Join Date: Dec 2003
Location: Homestead, FL USA
Posts: 248
Michael Littman is starting off with a positive reputation.
Thanks for the replys. I am headed up to Orlando for the big Lakeland gunshow this weekend. It is about a five hour drive each way from my place in Homestead. The proof will be in the pudding of that drive up and back. I am still thinking I ought to replace the tensioner but it is going to have to wait until I see how much cash I have left after this gunshow...gotta have your priorities in place! I let the engine cool down and tried to restart the engine. I still hear a little belt noise coming off the tensioner area but I will say that the AC fairly well BLASTS out of the vent now...what is that about? I have to drive up to Miami for work tomorrow morning so I will see if it makes the drive up. Again, thanks for th input and I will get back with my further observations.
Reply With Quote
  #6 (permalink)  
Old 01-13-2004, 10:37 PM
billieboy billieboy is offline
New User
 
Join Date: May 2003
Location: Los Angeles
Posts: 13
billieboy is starting off with a positive reputation.
The tensioner and the pulley can be replaced separately. The bearing on my pulley usually last 50K miles before it starts making a whining noise. A new pulley (with a new bearing) cost about $20.

___________
96 F-150 4.9L
Reply With Quote
Old 01-13-2004, 10:37 PM
Reply

Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks

Tags
49, 49l, 94, belt, duty, f150, heavy, loosen, replace, tensioner, truck

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Forum Jump



All times are GMT -5. The time now is 12:14 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.5.2 ©2010, Crawlability, Inc.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup