Is this harmonic balancer bad? - TCCoA Forums
 
LinkBack Thread Tools
post #1 of 21 (permalink) Old 11-09-2003, 06:22 PM Thread Starter
 
Join Date: Aug 2002
Posts: 32
Talking Is this harmonic balancer bad?

Came off (literally in my hands) my 1991 SC that has 190,000 miles when the head gaskets blew and necessitated an engine replacement.

At least it didn't come off while I was driving. Although I don't know why it didn't. BHJ here I come.

RichM is offline  
Sponsored Links
Advertisement
 
post #2 of 21 (permalink) Old 11-09-2003, 09:18 PM
3rd Gear Poster
 
Jimmy 2Coupes's Avatar
 
Join Date: Jul 2002
Location: Adrian Michigan
Posts: 132
That's scarry. Was your bolt still there and in one piece?

1995 SC (five speed)
Best E.T. [email protected]
Best MPH [email protected]
Best 60' 1.7489

1994 SC (automatic) [email protected]
On a stock long block with bolt on's
Sweet SC, lower13's coming.
Jimmy 2Coupes is offline  
post #3 of 21 (permalink) Old 11-09-2003, 09:42 PM
Braincoating! It's what all the cool kids have!
 
tbirdbrain's Avatar
 
Join Date: Oct 2003
Location: South Florida
Posts: 2,725
I know how that feels!
I spent way too long trying to find the source of an <1000 rpm miss
that turned out to be "damper in three easy pieces", just like yours.
Well, at least replacing it is easy.

www.BRAINCOATING.com..... Powder & Ceramic Coating

WWW.PRESTONSBOOKS.BIZ..... Books at really great prices!
tbirdbrain is offline  
Sponsored Links
Advertisement
 
post #4 of 21 (permalink) Old 11-09-2003, 10:36 PM Thread Starter
 
Join Date: Aug 2002
Posts: 32
Quote:
Originally posted by Jimmy 2Coupes
That's scarry. Was your bolt still there and in one piece?
Yep, the bolt was and is still there. the outer ring and rubber center was all that came off. Good thing my friend decided to remove the pulley so we could have a little more room when the motor and tranny come out.
The BHJ damper was always on my SCP "must order" list anyway.

Last edited by RichM; 11-09-2003 at 11:33 PM.
RichM is offline  
post #5 of 21 (permalink) Old 11-12-2003, 08:07 AM
Seasoned Veteran Poster
 
Tim Groth's Avatar
 
Join Date: Jul 2002
Location: Roanoke, VA
Age: 35
Posts: 935
Send a message via AIM to Tim Groth Send a message via Yahoo to Tim Groth
I feel your pain. My stock balancer just got replaced with a BHJ and man did I dodge a bullet too! Basically my balancer was being held on by my belt and that was it ....The 2 inch bolt was a meer 1/2 inch nub in the crank...thank god its taken care of now!

Oh, replace your crank sensor while at it too...they go hand in hand when you put the new unit on.

-Tim

Current Collection
1994 Thunderbird SC - Auto

1994 Thunderbird SC - 5spd
1995 Thunderbird SC - Auto
1997 LX - Auto - Parts Car
Tim Groth is offline  
post #6 of 21 (permalink) Old 11-12-2003, 01:41 PM
 
Join Date: Jan 2003
Posts: 724
And as always, remember that the stock pulley is NOT zero balanced so you have to go with underdrives or have it balanced to zero.
93SC is offline  
post #7 of 21 (permalink) Old 11-12-2003, 02:02 PM
 
Join Date: Jul 2002
Posts: 2,894
When do these things usually need to be repaced? I have approx 120,000 mi on the engine and don't know if the previous owner replaced it. Not likely though, as the serpentine belt has never been replaced.
soop is offline  
post #8 of 21 (permalink) Old 11-12-2003, 03:10 PM Thread Starter
 
Join Date: Aug 2002
Posts: 32
Quote:
Originally posted by soop
When do these things usually need to be repaced? I have approx 120,000 mi on the engine and don't know if the previous owner replaced it. Not likely though, as the serpentine belt has never been replaced.
My 91 5-speed SC had 190,000 miles on it when the head gasket when. That is why I am pulling the motor. The black stuff in my hand is supose to be rubber but felt more like a very brittle plastic. Which to me means that it has been heated up far past the temperature the material was intended for, or in other words the outer ring was slipping for some time.
So to directly answer your question I would check to make sure the outer ring isn't seperating from the rubber now.

Quote:
Originally posted by 93SC
And as always, remember that the stock pulley is NOT zero balanced so you have to go with underdrives or have it balanced to zero.
93SC, I'm definatly going to get the stock pulley rebalanced. I was thinking of taking the balancer down and getting it check for balance at the same time and possibly being anal about it and having them balanced together.
Good Idea?
Bad Idea?
Anal retentive and a waste of money?
RichM is offline  
post #9 of 21 (permalink) Old 11-12-2003, 06:00 PM
Seasoned Veteran Poster
 
Tim Groth's Avatar
 
Join Date: Jul 2002
Location: Roanoke, VA
Age: 35
Posts: 935
Send a message via AIM to Tim Groth Send a message via Yahoo to Tim Groth
First off get a new balancer...I think you can find them on Fordparts.com for 189.00 or something and it comes with a pulley...its a sold pair.

The only reason you would need the ASP pulleys are if you go with the BHJ setup.

As for the life span on the balancer its a crap shoot...can't really give a set time to expect one to fail...just like anything eles.

-Tim

Current Collection
1994 Thunderbird SC - Auto

1994 Thunderbird SC - 5spd
1995 Thunderbird SC - Auto
1997 LX - Auto - Parts Car
Tim Groth is offline  
post #10 of 21 (permalink) Old 11-12-2003, 09:33 PM
6th Gear Poster
 
Join Date: Jan 2003
Location: Jacksonville, NC USA
Age: 54
Posts: 627
Damn... never saw that happen before....

Glad everthing is cool... I can imagine what would have happened if it had come apart on the road.

Dan
2008 Nissan 350Z Grand Touring
2010 Ford F150 Lariat
a bunch of motorcycles
(haven't come across my dream 97 Tbird yet)
DanQ is offline  
post #11 of 21 (permalink) Old 11-12-2003, 10:07 PM
 
Join Date: Jan 2003
Posts: 724
Quote:
Originally posted by RichM

93SC, I'm definatly going to get the stock pulley rebalanced. I was thinking of taking the balancer down and getting it check for balance at the same time and possibly being anal about it and having them balanced together.
Good Idea?
Bad Idea?
Anal retentive and a waste of money?
Getting the new balancer checked isn't a bad idea if your going to get the pulley rebalanced. However I would shy away from having them balanced as a unit. My reasoning is that if they are balanced together then anytime you would want to take the pulley off (for whatever reason) you have to make sure that you put it back on exactly they way it came off. Also if you decide to go with underdrives in the future you would then need to have your balancer rebalanced. I think in hte long run it's cheaper and less hassle to have them zeroed out seperatly.

BTW, the bolt is 14x1.5. Took me awhile to figure that out.
93SC is offline  
post #12 of 21 (permalink) Old 11-13-2003, 02:54 PM Thread Starter
 
Join Date: Aug 2002
Posts: 32
93SC,
Bill said he has the bolt for the balancer and will send one along with the BHJ. I think it has a washer also that I ask for him to send along too, better safe than sorry.

Now I need to get off my *** and get that pulley to a machine shop.
RichM is offline  
post #13 of 21 (permalink) Old 11-13-2003, 05:45 PM
3rd Gear Poster
 
Jimmy 2Coupes's Avatar
 
Join Date: Jul 2002
Location: Adrian Michigan
Posts: 132
My reasoning is that if they are balanced together then anytime you would want to take the pulley off (for whatever reason) you have to make sure that you put it back on exactly they way it came off.

Actually the pulley will only bolt onto balancer one way. The four holes in the pulley/balancer are offset in such a way that all four holes only line up in one posistion.

That being said, it is possible to force the pulley on in the wrong posistion. When I installed the ASP underdrive crank pulley on my 95 SC I actually did that but felt something wasn't right because I shouldn't have had to force the holes to line up like I did. I took it back off, compared it with the stock pulley and realized the holes were offset. Duh I put it back on the RIGHT way and it went on with ease. Glad I got it right before starting the car.

1995 SC (five speed)
Best E.T. [email protected]
Best MPH [email protected]
Best 60' 1.7489

1994 SC (automatic) [email protected]
On a stock long block with bolt on's
Sweet SC, lower13's coming.
Jimmy 2Coupes is offline  
post #14 of 21 (permalink) Old 11-13-2003, 07:41 PM
 
Join Date: Jan 2003
Posts: 724
Quote:
Originally posted by RichM
93SC,
Bill said he has the bolt for the balancer and will send one along with the BHJ. I think it has a washer also that I ask for him to send along too, better safe than sorry.
Just when you go to install it. When I put mine on, I used to other bolts that were longer to get the balancer on with the thrust bearing that I had. It just took a few trips to a few stores to find the right bolt.
93SC is offline  
post #15 of 21 (permalink) Old 11-28-2003, 07:38 AM
 
Join Date: Nov 2003
Posts: 3
would the harmonic balancer cause a rough idle? or is it the cam sensor? i was wondering because my car has 95,000 miles on it and started a rough idle not too long ago!
PittBullOnCrack is offline  
post #16 of 21 (permalink) Old 11-28-2003, 07:41 AM
Braincoating! It's what all the cool kids have!
 
tbirdbrain's Avatar
 
Join Date: Oct 2003
Location: South Florida
Posts: 2,725
Quote:
would the harmonic balancer cause a rough idle?
Yes, it sure would. check it before it has a chance to break other things!

www.BRAINCOATING.com..... Powder & Ceramic Coating

WWW.PRESTONSBOOKS.BIZ..... Books at really great prices!
tbirdbrain is offline  
post #17 of 21 (permalink) Old 11-28-2003, 07:43 AM
 
Join Date: Nov 2003
Posts: 3
this is driving me insane! thanx... one other thing could it be the IAC valve?
PittBullOnCrack is offline  
post #18 of 21 (permalink) Old 11-28-2003, 07:49 AM
Braincoating! It's what all the cool kids have!
 
tbirdbrain's Avatar
 
Join Date: Oct 2003
Location: South Florida
Posts: 2,725
http://forums.tccoa.com/showthread.p...threadid=26951

The thread above might give you some details.
The iac could, but the HB is the more Likely candidate.
hope that helps

www.BRAINCOATING.com..... Powder & Ceramic Coating

WWW.PRESTONSBOOKS.BIZ..... Books at really great prices!
tbirdbrain is offline  
post #19 of 21 (permalink) Old 12-01-2003, 10:08 AM Thread Starter
 
Join Date: Aug 2002
Posts: 32
Angry

Quote:
Originally posted by RichM
93SC,
Bill said he has the bolt for the balancer and will send one along with the BHJ. I think it has a washer also that I ask for him to send along too, better safe than sorry.

Now I need to get off my *** and get that pulley to a machine shop.
Joy, the machine shops in town won't touch it. They want to balance the whole rotating assembly (crank, rods, pistons, flywheel, balancer, pulley, anything else I missed). Since that would void the ford longblock warrantee, I have decided to get the original motor rebuild. Which has opened up an entirely different can of worms. Maybe, in three years I will be able to enjoy my car again... if I'm not dead and broke.
RichM is offline  
post #20 of 21 (permalink) Old 12-01-2003, 11:24 AM
Braincoating! It's what all the cool kids have!
 
tbirdbrain's Avatar
 
Join Date: Oct 2003
Location: South Florida
Posts: 2,725
Quote:
... if I'm not dead and broke
either one of those is bad enough, just imagine both together

www.BRAINCOATING.com..... Powder & Ceramic Coating

WWW.PRESTONSBOOKS.BIZ..... Books at really great prices!
tbirdbrain is offline  
post #21 of 21 (permalink) Old 12-01-2003, 05:10 PM
 
Join Date: Jan 2003
Posts: 724
Quote:
Originally posted by RichM


Joy, the machine shops in town won't touch it. They want to balance the whole rotating assembly (crank, rods, pistons, flywheel, balancer, pulley, anything else I missed). Since that would void the ford longblock warrantee, I have decided to get the original motor rebuild. Which has opened up an entirely different can of worms. Maybe, in three years I will be able to enjoy my car again... if I'm not dead and broke.
Your trying to get the pulley rebalanced? Underdrives are always an option.
93SC 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 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

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