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Another one bites the dust #644453
03/18/10 09:11 PM
03/18/10 09:11 PM
Joined: Jan 2004
Posts: 581
Hamiltucky
R
RBDuster Offline OP
mopar
RBDuster  Offline OP
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Hamiltucky
Finally took the motor apart from a friends car that the convertor bolts came loose on and this what Cgall and I found. Glad I followed my gut.

Re: Another one bites the dust [Re: RBDuster] #644454
03/18/10 09:15 PM
03/18/10 09:15 PM
Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
tubtar Offline
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St. Paul , Mn.
That could have gotten ugly !
Not that it is any too pretty now.

Re: Another one bites the dust [Re: RBDuster] #644455
03/18/10 09:19 PM
03/18/10 09:19 PM
Joined: Jan 2003
Posts: 17,889
S.E. Michigan
ZIPPY Online content
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ZIPPY  Online Content
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S.E. Michigan
My condolences, that really sucks.

Did it have bolts or studs on the mains?

Re: Another one bites the dust [Re: RBDuster] #644456
03/18/10 10:59 PM
03/18/10 10:59 PM
Joined: Aug 2003
Posts: 43,237
Bend,OR USA
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Cab_Burge Offline
I Win
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Bend,OR USA
Next is the challenging chore, what failed first Converter bolt or main web failure


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Another one bites the dust [Re: Cab_Burge] #644457
03/19/10 01:02 PM
03/19/10 01:02 PM
Joined: Mar 2003
Posts: 15,491
the boonies
aarcuda Offline
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the boonies
sucks big time. at least it didnt take out everything


It's got a cop motor, a 440 cubic inch plant, it's got cop tires, cop suspensions, cop shocks. It's a model made before catalytic converters so it'll run good on regular gas.
Re: Another one bites the dust [Re: ZIPPY] #644458
03/19/10 05:30 PM
03/19/10 05:30 PM
Joined: Jan 2004
Posts: 581
Hamiltucky
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RBDuster Offline OP
mopar
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Hamiltucky
Quote:

My condolences, that really sucks.

Did it have bolts or studs on the mains?




Bolts. All the caps but #4 I snapped loose.

Re: Another one bites the dust [Re: Cab_Burge] #644459
03/19/10 05:34 PM
03/19/10 05:34 PM
Joined: Jan 2004
Posts: 581
Hamiltucky
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RBDuster Offline OP
mopar
RBDuster  Offline OP
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Hamiltucky
Quote:

Next is the challenging chore, what failed first Converter bolt or main web failure




No challenge here. Convertor bolts were done with red lock tight and torqued to 45 ft. lbs. Motor ran for almost 2 years and approx 375 passes with no issues. This was the 1st freshen up with the same parts. 1st build was over 400 passes.

Re: Another one bites the dust [Re: RBDuster] #644460
03/19/10 07:11 PM
03/19/10 07:11 PM
Joined: Jul 2005
Posts: 428
wappinger falls new york
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Jimi_Vignogna Offline
mopar
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Joined: Jul 2005
Posts: 428
wappinger falls new york
Quote:

Finally took the motor apart from a friends car that the convertor bolts came loose on and this what Cgall and I found. Glad I followed my gut.




is that the # 4 main? this usually happens from a non balanced converter or one that is not put together properly. i had a maxwedge break a block the same way in the # 4 main, started checking parts and found that the drive that goes into the trans pump was out .040 from the receiver hub that goes into the crank. this engine kept on loosening up the converter bolts as well.

Re: Another one bites the dust [Re: Jimi_Vignogna] #644461
03/19/10 07:20 PM
03/19/10 07:20 PM
Joined: Jan 2003
Posts: 17,889
S.E. Michigan
ZIPPY Online content
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S.E. Michigan
Of course it's too late now, but studs might have helped it stay together a little longer. It looks like the break point is roughly where a bolt would end (just shy of the bottom of the threaded hole).

That idea doesn't make it suck any less, though.
Good catch, could have been a disaster for the whole car instead of just the motor.


Rich H.

Esse Quam Videri




Re: Another one bites the dust [Re: ZIPPY] #644462
03/20/10 09:23 AM
03/20/10 09:23 AM
Joined: Mar 2004
Posts: 2,475
SW Ohio
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cgall Offline
top fuel
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Posts: 2,475
SW Ohio
Cap bolt was still held in by 4 or 5 threads.

I agree with those that say this is damage from transbrake and 2-step vibration.







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