• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

Harmonic Balancer Install---How To---

  • Thread starter Thread starter 94GTCoupe
  • Start date Start date Apr 19, 2008

94GTCoupe

10 Year Member
May 7, 2006
1,412
92
79
CA
Apr 19, 2008
#1
  • Apr 19, 2008
  • #1
#1.raise car,set on jack stands.

#2.remove cover.


#3.remove ccrm bracket and overflow tank.set aside.



#4.remove fan,set aside.


#5.push down,remove belt.


#6.using 15/16 socket,remove crankshaft bolt.(i did this from under the car,just easier to take pic from top.if you dont have an impact wrench,with an assistant,remove starter,wedge large screwdriver against flywheel to prevent it from turning,while you loosen the crankshaft bolt with a long breaker bar.).


#7.remove 4,1/2 inch crankshaft pulley bolts.(also from under car)


#8.using puller,draw HB off crankshaft.



----old HB going bad----

new HB from autozone.pioneer DA-3021.$98.


#9.clean off crankshaft snout.place rtv sealant on HB keyway.(some chose to install new timing cover oil seal,i put new cover w/seal 2 years ago so i skipped that step)


#10.carefully slide HB on crankshaft,lining up the crankshaft key with HB keyway.

#11.using rubber mallet or a peice of wood,lightly tap HB onto crankshaft.

#12.clean off crankshaft bolt and washer,install on crankshaft finger tight.DO NOT FORCE IT.if to tight remove it,make sure it's clean and try again.

#13.using short bursts from the impact wrench,slowly draw HB onto crankshaft until fully seated.tighten crankshaft bolt to 130 foot pounds.

#14.reinstall crankshaft pulley(i used a very small dab of locktite on the 4 bolts)


-----look at the pullies from the side,make sure they all line up-----

#15.reinstall the belt.make sure everything's straight.


#16.reinstall fan.


#17.reinstall ccrm bracket w/coolant overflow tank.


#18.reinstall cover.look everything over.


#19.start car.bring to normal operating temp.shut off.

#20.remove spout connector.


#21.hook up timing light.inductive pick-up on #1 plug wire.pos and neg to battery.


#22.start car,check timing,adjust as needed.factory base timing is 10 degrees BTDC.shut off car.(i set mine at 13 BTDC)

#23.reinstall spout connector.


#24 start car,check timing to ensure it is advancing beyond base timing.

#25.lower car.your done!grab a drink,and relax.
 

Chythar

Recently finished repairing my rear
20+ Year Stangneter
Aug 26, 2004
2,374
140
113
Foothill Ranch, CA
Apr 19, 2008
#2
  • Apr 19, 2008
  • #2
Nice! To install the HB, I use a HB installer. However, since our HB have a deep socket, I use a pipe adapter as a spacer for the tool so it fits.
 

StinkinLincoln

Member
Dec 9, 2006
240
0
17
Louisiana
Apr 19, 2008
#3
  • Apr 19, 2008
  • #3
well you messed up putting the new one on... using the hammer is a bad idea, it can put the balancer slightly off center. use an installer to put it on, tighten the crank bolt as much as you can until it starts to turn, then get some one to stick a screw driver in the flywheel tooth and hold it against bellhousing so the flywheel wont move, then crank the bolt down to 130ft lb.
 

94GTCoupe

10 Year Member
May 7, 2006
1,412
92
79
CA
Apr 19, 2008
#4
  • Apr 19, 2008
  • #4
used a rubber mallet,not a hammer.everyone has a different way of doing things.i agree using an installer is the prefered way,but i have never had a problem with the way i installed the HB.
 

Chythar

Recently finished repairing my rear
20+ Year Stangneter
Aug 26, 2004
2,374
140
113
Foothill Ranch, CA
Apr 19, 2008
#5
  • Apr 19, 2008
  • #5
StinkinLincoln said:
well you messed up putting the new one on... using the hammer is a bad idea, it can put the balancer slightly off center. use an installer to put it on, tighten the crank bolt as much as you can until it starts to turn, then get some one to stick a screw driver in the flywheel tooth and hold it against bellhousing so the flywheel wont move, then crank the bolt down to 130ft lb.
Click to expand...

That's a fair warning, one should never pound the HB on with a hammer. Lightly tapping with a rubber mallet, as Davis3 described, won't hurt at all. The point of using the rubber mallet is to get the HB started on the crank so it won't fall off while you're getting everything else lined up.

The one problem with using the HB bolt to install the HB is, it can be really easy to strip the threads in the crankshaft. Short bursts of an impact wrench can reduce that risk, but the best way is to use the proper install tool.
 
S

Stevenlgts

New Member
Jul 1, 2008
24
0
0
Atlanta area
Jul 1, 2008
#6
  • Jul 1, 2008
  • #6
Chythar said:
That's a fair warning, one should never pound the HB on with a hammer. Lightly tapping with a rubber mallet, as Davis3 described, won't hurt at all. The point of using the rubber mallet is to get the HB started on the crank so it won't fall off while you're getting everything else lined up.

The one problem with using the HB bolt to install the HB is, it can be really easy to strip the threads in the crankshaft. Short bursts of an impact wrench can reduce that risk, but the best way is to use the proper install tool.
Click to expand...

I concour with Chythar.....I stripped my crank threads using the HB to draw it on.
 

final5-0

Mustang Master
Apr 6, 2003
6,817
12
79
DFW Texas
Jul 1, 2008
#7
  • Jul 1, 2008
  • #7
Like most things ... if we ... and I'm including myself in the ... WE part here

Would just think about what we are doing before doing something

We would be better off

Like in this case

If you can fairly easily run the bolt in for a couple of turns

It is gonna be OK to pull the hb on down with the bolt

Now ... if you CAN'T catch but like half a thread OR the bolt is hard to turn

Well ... that is where you should listen to yourself when you suspect
something ain't like it needs to be
so
Stop and don't do anything else

Until ... you find some trustworthy help you can rely on

Believe me ... Many times ... I've done hosed up
by not using what little brain I got left at my age

Grady
 

94GTLaserRC

Squint as you approach, lest you be blinded by my
15 Year Member
May 7, 2002
11,178
13
89
Ernan Says "here it comes... dushbag"
Jul 1, 2008
#8
  • Jul 1, 2008
  • #8
Another Awesom Write up Job
RC
 

94GTCoupe

10 Year Member
May 7, 2006
1,412
92
79
CA
Jul 2, 2008
#9
  • Jul 2, 2008
  • #9
Thank's.
 

ShortThrow50

Member
Oct 22, 2006
923
2
16
Pa
Jul 2, 2008
#10
  • Jul 2, 2008
  • #10
i use an impact gun to install the hb. bolt pulls it right on
 

Black95GTS

Active Member
Jan 8, 2004
1,644
3
38
Marlborough, MA
Jul 2, 2008
#11
  • Jul 2, 2008
  • #11
Awesome job, mods should sticky your posts.

Adam
 

94GTLaserRC

Squint as you approach, lest you be blinded by my
15 Year Member
May 7, 2002
11,178
13
89
Ernan Says "here it comes... dushbag"
Jul 2, 2008
#12
  • Jul 2, 2008
  • #12
Black95GTS said:
Awesome job, mods should sticky your posts.

Adam
Click to expand...

There should be a Davis3 Sticky!!
 
T

turbogt

Member
May 1, 2003
723
16
19
Montana
Jul 2, 2008
#13
  • Jul 2, 2008
  • #13
thats too f'n funnyl.. I'm literally in the garage right now getting ready to do mine and I come across this thread... NOICE!!!!
 
You must log in or register to reply here.

Similar threads

B
water pump installation questions
  • B0udreaux
  • Feb 5, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
38
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 28, 2026
General karthief
Suspension 87 steering wheel slightly wobbles after new Rag joint install
  • R82148V
  • Jun 16, 2025
  • Fox 5.0 Mustang Tech
  • 2
Replies
25
Views
1K
Fox 5.0 Mustang Tech Jun 24, 2025
R82148V
Wanting to replace my BOSS 351C Engine Harmonic Balancer - Questions about 'Balance?'
  • 69machmike
  • Oct 31, 2024
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
2
Views
800
1965 - 1973 Classic Mustangs -General/Talk- Nov 5, 2024
Realmongo
6
Hey all,I’m putting together a 302 for my 1968 Mustang and wanted to post the combo + some questions to make sure I’m not missing crucial
  • 68_Disgustang
  • Feb 22, 2026
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
5
Views
1K
1965 - 1973 Classic Mustangs -General/Talk- Oct 19, 2026
mattcrp1
M
Drivetrain 83’ Glx convertible C5 Trans help!
  • JacksonJared2113
  • Dec 25, 2025
  • Fox 5.0 Mustang Tech
Replies
2
Views
514
Fox 5.0 Mustang Tech Dec 26, 2025
JacksonJared2113
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?