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Blew my engine yesterday

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  #11  
Old 07-07-2021 | 09:59 PM
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Originally Posted by TwiZted Biker
It's coming completely apart, get your head around that now and plan accordingly as it isn't going to be a cheap fix if things went that catastrophic inside. Busting the porcelain in the plug says something was rattling around in there, that will beat the **** out of everything including hammering the crank pin & bearings not to mention all the nasty that got blown into the crankcase, oil & oil pump.

Start deciding if the bikes worth it to you.
It's ABSOLUTELY worth it to me. And I have been kicking around the idea of an engine swap for a while. A V80 from S&S is looking pretty good. MAYBE even a 111.
 
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  #12  
Old 07-08-2021 | 12:24 PM
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So I said "hell with it" & bought an Ultima 113 at the recommendation of a guy who owns one. I'll bring the old Evo home to dismantle & learn with. Got a decent deal at Jirehcycles.com. I wanted to do an engine swap for a while, preferably WITHOUT wrecking the original.

I guess what I needed was a good excuse lol.
 
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  #13  
Old 07-08-2021 | 01:14 PM
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And it begins....
 
  #14  
Old 07-08-2021 | 02:01 PM
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Originally Posted by RhynoRocK
So I said "hell with it" & bought an Ultima 113 at the recommendation of a guy who owns one. I'll bring the old Evo home to dismantle & learn with. Got a decent deal at Jirehcycles.com. I wanted to do an engine swap for a while, preferably WITHOUT wrecking the original.

I guess what I needed was a good excuse lol.
That is a great choice of engine. I know a guy who was in the same situation like yours, and that was his route, and he's been happy since. Good time to learn on the original engine. And now you have joined an elite group of folks who have blown an engine.
 
  #15  
Old 07-08-2021 | 02:26 PM
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Originally Posted by TwiZted Biker
It's coming completely apart, get your head around that now and plan accordingly as it isn't going to be a cheap fix if things went that catastrophic inside. Busting the porcelain in the plug says something was rattling around in there, that will beat the **** out of everything including hammering the crank pin & bearings not to mention all the nasty that got blown into the crankcase, oil & oil pump.

Start deciding if the bikes worth it to you.
What's left? I would think the cases, crank, and cam should be good. Are 96 cases worth building on?
 
  #16  
Old 07-08-2021 | 03:20 PM
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Good decision on the engine. Think about a new/stronger clutch.
 
  #17  
Old 07-08-2021 | 03:39 PM
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Originally Posted by Dehammer
What's left? I would think the cases, crank, and cam should be good. Are 96 cases worth building on?
All speculation till it's opened, cases should ok if the studs didn't pull out or the breather port didn't get chewed up. Both are repairable. Metal has been loose in the engine, how bad is the only question right now.
 
  #18  
Old 07-08-2021 | 03:52 PM
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Okay, so this is gonna be a build thread, which is cool. But I wanna know what grenaded inside that old engine.

Curiosity is killing me
 
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  #19  
Old 07-08-2021 | 03:58 PM
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Originally Posted by cprhed
Okay, so this is gonna be a build thread, which is cool. But I wanna know what grenaded inside that old engine.

Curiosity is killing me
Its always the last guy that worked on its fault...
 
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  #20  
Old 07-08-2021 | 08:05 PM
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Originally Posted by Super Glidester
Its always the last guy that worked on its fault...
That's a distinct possibility here! When I bought this ol' hog in 2019, I noticed the carb wasn't correct for a stock engine (this has an HSR42), and this bike was enjoyably strong at mid-high range revs. Long story short, when my repair guy popped the pushrod covers off, there were adjustables inside, which stands to reason there was other work done here.

My guess is the previous owner spent some dough on upgrades, and part of the job wasn't done very well & it failed. Because I've only put 10k miles on during my ownership. I haven't touched mechanicals whatsoever on this bike except a fresh belt, primary chain & stator kit.
 


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