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 Post subject: Re: 1972 Dodge Colt
PostPosted: Tue Jan 16, 2024 1:28 pm 
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Triple Duece Weber
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Joined: Tue Nov 23, 2004 6:05 pm
Posts: 2632
Location: Desoto Texas
Car Model: 1972 Dodge Colt
Matt
There is a void on the crank right where that booger is on the Damper.
I guess it moved metal from one surface to the other.
It's not pretty.

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 Post subject: Re: 1972 Dodge Colt
PostPosted: Tue Jan 16, 2024 1:40 pm 
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Supercharged
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Location: IRWIN PA
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I always Loctite my cam bolt and also use an air impact on them for tigntening purposes. Sometimes they can be not completely centered or seated on the cam snout if you are not careful.

Makes sense now why stan's engine was so lazy.

I bet that dowel was broken a while back allowing the cam to become retarded quite a bit.

Greg

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 Post subject: Re: 1972 Dodge Colt
PostPosted: Tue Jan 16, 2024 2:06 pm 
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Triple Duece Weber
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Location: Desoto Texas
Car Model: 1972 Dodge Colt
I had forgotten to Locktite the bolt.
The cam bumper is what kept it close and not flying around in the cover.
I think it was loose on the last two runs, but not sheared.
It sheared on the return road when it quit running and would not restart.
Not the reason for it being lazy.
It ran it's best time by a half second on the second to last run.

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 Post subject: Re: 1972 Dodge Colt
PostPosted: Tue Jan 16, 2024 2:52 pm 
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That is one reason high performance big blocks went to the 3 bolt cam/sprocket.

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 Post subject: Re: 1972 Dodge Colt
PostPosted: Tue Jan 16, 2024 3:02 pm 
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Triple Duece Weber
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Joined: Tue Nov 23, 2004 6:05 pm
Posts: 2632
Location: Desoto Texas
Car Model: 1972 Dodge Colt
And a few high output slants!


Attachments:
Timing (15) s.JPG
Timing (15) s.JPG [ 56.42 KiB | Viewed 991 times ]

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 Post subject: Re: 1972 Dodge Colt
PostPosted: Tue Jan 16, 2024 3:41 pm 
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Joined: Thu Oct 17, 2002 7:27 pm
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Location: Park Forest, Illinoisy
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Us po folk cain't efford none that fancy crap.

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 Post subject: Re: 1972 Dodge Colt
PostPosted: Tue Jan 16, 2024 4:15 pm 
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Triple Duece Weber
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Joined: Tue Nov 23, 2004 6:05 pm
Posts: 2632
Location: Desoto Texas
Car Model: 1972 Dodge Colt
Well if you didn't spend all your money on expensive motorcycles you could have some fancy stuff!!!!!!

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 Post subject: Re: 1972 Dodge Colt
PostPosted: Tue Jan 16, 2024 4:35 pm 
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:roll:

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 Post subject: Re: 1972 Dodge Colt
PostPosted: Wed Jan 17, 2024 6:40 am 
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Location: St. Louis Park, MN
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Stan was there any signs of metal transfer on the crank flange?

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 Post subject: Re: 1972 Dodge Colt
PostPosted: Wed Jan 17, 2024 9:28 am 
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Triple Duece Weber
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Joined: Tue Nov 23, 2004 6:05 pm
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Location: Desoto Texas
Car Model: 1972 Dodge Colt
No Seymour, the crank, flywheel surfaces all look great.
Next week after it warms up a little I will pull the pan and look at the bearings.

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 Post subject: Re: 1972 Dodge Colt
PostPosted: Wed Jan 17, 2024 9:40 am 
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No Seymour, the crank, flywheel surfaces all look great.
I guess that is good, but very odd it didn't tear up the crank coming off. :? :?

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 Post subject: Re: 1972 Dodge Colt
PostPosted: Wed Jan 17, 2024 2:47 pm 
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Triple Duece Weber
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Joined: Tue Nov 23, 2004 6:05 pm
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Location: Desoto Texas
Car Model: 1972 Dodge Colt
What do you mean Rick? I don't understand what you are saying.
It did mess up the front, enough to ruin the crank I don't know.
The rear flange is fine.
Splain it to me again.

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 Post subject: Re: 1972 Dodge Colt
PostPosted: Wed Jan 17, 2024 5:29 pm 
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When you said - "No Seymour, the crank, flywheel surfaces all look great." I thought you were saying the crank snout was Ok. I guess I misunderstood. :)

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 Post subject: Re: 1972 Dodge Colt
PostPosted: Thu Jan 18, 2024 6:47 am 
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Triple Duece Weber
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Joined: Tue Nov 23, 2004 6:05 pm
Posts: 2632
Location: Desoto Texas
Car Model: 1972 Dodge Colt
No problem, I think he was wondering if I had a big imbalance in the crank rod assembly.

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 Post subject: Re: 1972 Dodge Colt
PostPosted: Wed Jan 24, 2024 8:10 am 
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Triple Duece Weber
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Joined: Tue Nov 23, 2004 6:05 pm
Posts: 2632
Location: Desoto Texas
Car Model: 1972 Dodge Colt
I got the engine torn down yesterday.
Nothing unexpected.
Bearings looked very good, number 3 rod had a small discoloring down the center, could not feel anything.
Mains looked great.
Pistons as well.
My Racer Brown cam had a full grove rear journal, I didn't remember that!
Might explain the volume of oil on the rockers.
Now when time permits off to the machine shop to get advice on crank nose.


Attachments:
2024 Jan Rebuild.JPG
2024 Jan Rebuild.JPG [ 100.14 KiB | Viewed 825 times ]

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