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Big Block Talk! Everything about swapping a big block engine into your cart!



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Old 06-24-2020, 04:44 PM   #11
barrettjg2
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Yamaha
 
Join Date: Aug 2019
Location: Corning, NY
Posts: 10
Default Re: VC625 Catastrophic Failure

As promised here are the gory details.

https://photos.app.goo.gl/RB4Ft2hJqQZ1N4HX7

Full analysis of carnage. Nothing to blame on Vegas Carts here at all. This was my fault for sure. When I first did the install and started it for the break in period I had forgot to add oil. It ran for about 3 minutes without oil in the crankcase other than what was left from the factory. At the time it showed no signs of being injured at all, no smoking, and no odd noises. After the first oil change it all of a sudden started smoking, I figured I had overfilled the oil level. The smoking was not excessive mainly on acceleration. One day the smoking stopped I figured the oil level got down to where it needed to be and all was good. Mind you no odd noises no loss of power. Then one afternoon it I was driving along about 3k rpm she started knocking at let loose immediately. Only thing I can figure is the moments on first start with no oil had damaged the valve guides and seals. The engine burned through its oil and starved the rod journal of its oil supply and bang. Expensive lesson learned.
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Old 06-24-2020, 05:27 PM   #12
BIKERMIKEYBLACK
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Join Date: Jun 2011
Location: Kingston Springs Tn.
Posts: 874
Default Re: VC625 Catastrophic Failure

Are you saying it had no oil in it when it blew ?
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Old 06-24-2020, 10:31 PM   #13
barrettjg2
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Yamaha
 
Join Date: Aug 2019
Location: Corning, NY
Posts: 10
Default Re: VC625 Catastrophic Failure

That is correct. It had burned through all 1.5qts of its oil. There were no external oil leaks.
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Old 06-25-2020, 12:32 PM   #14
slonomo
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Location: Medina, Ohio (NEOHIO)
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Default Re: VC625 Catastrophic Failure

Wow.
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Old 06-25-2020, 07:10 PM   #15
AirXtreme
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Join Date: May 2007
Location: Connecticut
Posts: 26
Default Re: VC625 Catastrophic Failure

Quote:
Originally Posted by barrettjg2 View Post
Yes I have a lift but I leveled the motor plate back to within a degree or two of level.
Hi
Just wondering how you leveled your engine?
I think my seized engine may have been because I didn’t level it.
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Old 06-25-2020, 09:27 PM   #16
barrettjg2
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Yamaha
 
Join Date: Aug 2019
Location: Corning, NY
Posts: 10
Default Re: VC625 Catastrophic Failure

I used fender washers under the mounting plate that vegas carts supplied.
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