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Torque converter bolts coming loose!!! HELP!! #447054
08/23/09 01:04 PM 08/23/09 01:04 PM
Joined: Apr 2005
Posts: 1,106
Quebec, Canada
D
Diablo Offline OP
super stock
Diablo  Offline OP
super stock
D

Joined: Apr 2005
Posts: 1,106
Quebec, Canada
Well it was the first real outing for the 636 engine and on its first pull it ran great no problems but then we heard a wierd noise. We couldn't figure it out right away but when we were gonna make our second pull we found out a converter bolt was working its way out. Got it home and all four were loose!

We Doubled checked each one when tightening each bolt and had red locktight on them as well.

What can cause this and what is the solution???

This is a new trans and Convertor.

We ran the old trans and convertor with this 636ci engine once as a test run and nothing was wrong with the bolts on the old convertor.

Thanks
Doug
Re: Torque converter bolts coming loose!!! HELP!! [Re: Diablo] #447055
08/23/09 01:15 PM 08/23/09 01:15 PM
Joined: Mar 2003
Posts: 2,504
PA
moparacer Offline
master
moparacer  Offline
master

Joined: Mar 2003
Posts: 2,504
PA
Well I will tell you my converter bolt story but you wont like to hear it.

A few years back mine kept coming loose and after a couple flexplates and aggravation the crank ended up breaking.

I think the crank being cracked was loosening the bolts...


67 Barracuda street/bracket car 11.27-119
68 Dart 502 BB 8.70s-152
414 cid SB Dragster 7.65-174
Re: Torque converter bolts coming loose!!! HELP!! [Re: Diablo] #447056
08/23/09 01:17 PM 08/23/09 01:17 PM
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOrk ! Offline
The village idiot's idiot
dOrk !  Offline
The village idiot's idiot

Joined: Jul 2008
Posts: 30,424
Florida STAYcation
There could be an imbalance in the converter and/or flex-plate.
Re: Torque converter bolts coming loose!!! HELP!! [Re: dOrk !] #447057
08/23/09 01:33 PM 08/23/09 01:33 PM
Joined: Nov 2003
Posts: 3,577
Long Island, NY USA
B
BergmanAutoCraft Offline
master
BergmanAutoCraft  Offline
master
B

Joined: Nov 2003
Posts: 3,577
Long Island, NY USA
Sounds like a vibration issue.
Re: Torque converter bolts coming loose!!! HELP!! [Re: Diablo] #447058
08/23/09 04:13 PM 08/23/09 04:13 PM
Joined: Jan 2003
Posts: 25,801
Rio Linda, CA
John_Kunkel Online content
Too Many Posts
John_Kunkel  Online Content
Too Many Posts

Joined: Jan 2003
Posts: 25,801
Rio Linda, CA

There have been numerous previous threads about converter bolts working loose and I don't think there was ever a common consensus as to why some do and most don't.

My suggestion for problematic bolts has always been to drill the bolts for safety wire.

The INTERNET, the MISinformation superhighway
Re: Torque converter bolts coming loose!!! HELP!! [Re: John_Kunkel] #447059
08/23/09 04:18 PM 08/23/09 04:18 PM
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
Dodgem Offline
master
Dodgem  Offline
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Joined: Mar 2008
Posts: 5,746
Ontario, Canada
I use red loctite
Re: Torque converter bolts coming loose!!! HELP!! [Re: Dodgem] #447060
08/23/09 04:33 PM 08/23/09 04:33 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
I use red locktite and I use a impact to tighten them,
on a small block I can get to them in the starter
area... I give them a couple of hits with the gun...
dont go crazy

Re: Torque converter bolts coming loose!!! HELP!! [Re: MR_P_BODY] #447061
08/23/09 04:37 PM 08/23/09 04:37 PM
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOrk ! Offline
The village idiot's idiot
dOrk !  Offline
The village idiot's idiot

Joined: Jul 2008
Posts: 30,424
Florida STAYcation
Quote:

I use red locktite and I use a impact to tighten them,
on a small block I can get to them in the starter
area... I give them a couple of hits with the gun...
dont go crazy




P-guy ... you are going to drive the "PRECISE TORQUE guys" cRaZy saying stuff like that.

.....a couple of hits with-da'-gun ...

Re: Torque converter bolts coming loose!!! HELP!! [Re: dOrk !] #447062
08/23/09 04:47 PM 08/23/09 04:47 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
Quote:

Quote:

I use red locktite and I use a impact to tighten them,
on a small block I can get to them in the starter
area... I give them a couple of hits with the gun...
dont go crazy




P-guy ... you are going to drive the "PRECISE TORQUE guys" cRaZy saying stuff like that.

.....a couple of hits with-da'-gun ...



LOL... I figured so.... there are only a few things
I really torque on a engine and the verter bolts
arent one of them
Re: Torque converter bolts coming loose!!! HELP!! [Re: BergmanAutoCraft] #447063
08/23/09 05:11 PM 08/23/09 05:11 PM
Joined: Aug 2003
Posts: 43,180
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,180
Bend,OR USA
Quote:

Sounds like a vibration issue.

It won't fix itself, it will breaak stuff if you don't fix it now before it does break valuable parts. Harmonics and vibrations can loosen a lot of things held together with bolts and nuts, figuring out which one it(harmonics or vibrations) is, is the hard part Let us know what you find and do please, it may help someoone else on here down the road. What stroke and bore is this motor? What was the bore and stroke on the smaller one?

Last edited by Cab_Burge; 08/23/09 05:42 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Torque converter bolts coming loose!!! HELP!! [Re: Cab_Burge] #447064
08/23/09 05:39 PM 08/23/09 05:39 PM
Joined: May 2006
Posts: 253
Smithfield, Rhode Island
Mulehead Offline
enthusiast
Mulehead  Offline
enthusiast

Joined: May 2006
Posts: 253
Smithfield, Rhode Island
New trans could be off,Check alignment.Between crank and trans

Ain't nuthin like a HEMI !
Re: Torque converter bolts coming loose!!! HELP!! [Re: Mulehead] #447065
08/23/09 06:16 PM 08/23/09 06:16 PM
Joined: Apr 2005
Posts: 1,106
Quebec, Canada
D
Diablo Offline OP
super stock
Diablo  Offline OP
super stock
D

Joined: Apr 2005
Posts: 1,106
Quebec, Canada
The torque will be coming out early this week. I need this problem fixed by next weekend. Take the torque back to the builder to make sure its balanced. Or maybe put the old torque back in and see if they don't back up with that one. Like i mentioned using this engine (636ci) and the old trans and converter we made two passes and everything was fine. One pass with the new trans and converter and all 4 bolts came loose with red lock tight.

Bore is 4.500
Stroke is 5 inch.

Engine has a solid elephant ears, solid mid plate and rubber on the the rear of trans.
Re: Torque converter bolts coming loose!!! HELP!! [Re: Diablo] #447066
08/23/09 08:25 PM 08/23/09 08:25 PM
Joined: Dec 2007
Posts: 12,587
Great Neck,LI,new york
hemi-itis Offline
I Live Here
hemi-itis  Offline
I Live Here

Joined: Dec 2007
Posts: 12,587
Great Neck,LI,new york
Were the threads clean& dry??No oil of ANY kind??

HEMI-ITIS has no cure.
My condition is fully BLOWN!!
Re: Torque converter bolts coming loose!!! HELP!! [Re: Diablo] #447067
08/23/09 08:38 PM 08/23/09 08:38 PM
Joined: May 2003
Posts: 854
Bloomingdale , OH
super451b Offline
super stock
super451b  Offline
super stock

Joined: May 2003
Posts: 854
Bloomingdale , OH
I had them back out with locktite before. I started using RTV silicon on them and haven't had one come loose since. That was over 20 years ago.
Re: Torque converter bolts coming loose!!! HELP!! [Re: hemi-itis] #447068
08/23/09 08:40 PM 08/23/09 08:40 PM

A
Anonymous
Unregistered
Anonymous
Unregistered
A



Quote:

Were the threads clean& dry??No oil of ANY kind??



Hemitis, does this look familiar.
Re: Torque converter bolts coming loose!!! HELP!! #447069
08/23/09 08:50 PM 08/23/09 08:50 PM
Joined: Aug 2006
Posts: 1,403
Columbus Ohio
M
Moore & Moore Offline
pro stock
Moore & Moore  Offline
pro stock
M

Joined: Aug 2006
Posts: 1,403
Columbus Ohio
You might check your driveshaft. I kept bending mine about .03 -.05 and made an awful vibration and convertor bolts kept coming loose. I went to a 4" aluminum driveshaft and the vibration stopped and convertor bolts have been tight all year.
Jack
Re: Torque converter bolts coming loose!!! HELP!! #447070
08/23/09 08:50 PM 08/23/09 08:50 PM

A
Anonymous
Unregistered
Anonymous
Unregistered
A



start with new converter bolts, spray brakekleen in converter holes, red loctite and after you get bolts tight, hit vthe wrench with a hammer for extra torque, you probably didnt go tight enough.

pictures care of the HEMITIS archives

Re: Torque converter bolts coming loose!!! HELP!! #447071
08/23/09 10:21 PM 08/23/09 10:21 PM
Joined: Dec 2007
Posts: 12,587
Great Neck,LI,new york
hemi-itis Offline
I Live Here
hemi-itis  Offline
I Live Here

Joined: Dec 2007
Posts: 12,587
Great Neck,LI,new york
Quote:

Quote:

Were the threads clean& dry??No oil of ANY kind??



Hemitis, does this look familiar.

YES SSR,Those are the new converter bolts we put in your hemi car at PINKS ALL OUT at Englishtown.They didn't come loose after that.

5436612-IMG_1015.JPG (75 downloads)
HEMI-ITIS has no cure.
My condition is fully BLOWN!!

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