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Re: carnage at the dyno
[Re: mopar dave]
#2022201
02/29/16 11:10 PM
02/29/16 11:10 PM
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Joined: Nov 2004
Posts: 6,890
North Alabama
Monte_Smith
master
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master
Joined: Nov 2004
Posts: 6,890
North Alabama
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Does the rod look "sawed off" where it hit the block, or just broken. With both rod bolts broken, my GUESS would be oiling issue or it just broke a rod bolt. Usually when one just breaks a rod, the big end stays on the crank.
Watching video, it didn't really sound to be laboring before it broke. So maybe it just broke a bolt. Even beat all to hell, the bearing should show an oil problem if there was one
Last edited by Monte_Smith; 02/29/16 11:14 PM.
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Re: carnage at the dyno
[Re: mopar dave]
#2022223
02/29/16 11:36 PM
02/29/16 11:36 PM
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Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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Perhaps the crank was out of round? How do the other bearings look? What brand crank?
Be a good time to upgrade to a magnum block at the least.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: carnage at the dyno
[Re: Hot 340]
#2022232
02/29/16 11:46 PM
02/29/16 11:46 PM
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Joined: Feb 2005
Posts: 20,173
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,173
PA.
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VERY sorry to hear this Dave.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: carnage at the dyno
[Re: mopar dave]
#2022238
02/29/16 11:54 PM
02/29/16 11:54 PM
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Joined: May 2004
Posts: 12,386
Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,386
Taxes & Virus's R-US, NY
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well today was dyno day and i thought it was going to be a great day, but it didnt turn out that way. engine came apart on the 5th short pull. only had 6000rpm on it at the time. not sure what caused it yet. still have to get it apart for examination. on #8 cylinder eagle H beam broke in the middle of the beam and both 8740 rod bolts are broke as well. looks like it took out 2 pistons the cam and the block. total pile of sh!t. also broke the pick up on the oil pump. looks like ill have to start over. it will be interesting to see what the cause was. Totally sucks, sorry to hear that.
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Re: carnage at the dyno
[Re: mopar dave]
#2022245
03/01/16 12:01 AM
03/01/16 12:01 AM
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Joined: Sep 2014
Posts: 4,457
Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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I can't tell from the picks where it got the block. Did it take out a pan rail or something else I missed?
It's hard to say about the oiling and does number 8 get it first. It is technically a constant flow system so once there is pressure if the pump can keep they should all get oil all the time. My experience shows 3 and 4 are the first not to get oil but that is usually about 8000 RPM.
Bad deal for you for sure.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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that #8 is usually the first bearing to cook on a sb with oiling issues.
