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So, kablewie went Kablewie, pieces everywhere !


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#1 propane1 ONLINE  

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Posted January 18, 2016 - 06:09 PM

Got engine apart today, this is what I found!!!!!
Block still looks good, but will take a much closer look. Crank not good. Will have to get it turned to get the aluminum and scratches out. Cylinder looks good. So, I think, for now I will put the 12 hp that blew up last year, which I have already repaired, back in. Will be a little faster that way to at least have it running again. Would rather the 14 hp, but we will see.

Noel

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#2 KennyP OFFLINE  

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Posted January 18, 2016 - 06:23 PM

Looks just like what I found!


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#3 glgrumpy OFFLINE  

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Posted January 18, 2016 - 06:25 PM

Blew cap right off! Must have been at bottom of stroke to be like that?  You're using race fuel aren't ya! Ha!  Too much alchohol in the gas?  Check oil?


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#4 propane1 ONLINE  

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Posted January 18, 2016 - 06:40 PM

Oil was checked Before start up. Racing gas to expensive, so I didn't use that. Piston was at half way mark.

Noel
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#5 MH81 ONLINE  

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Posted January 18, 2016 - 06:57 PM

Uuughh, that's nasty
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#6 HANKG ONLINE  

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Posted January 18, 2016 - 07:01 PM

Pieces pieces everywhere I've got a 12 so I don't care I'll put it in and  turn the key and hope for no more KA BLE WIE  :wallbanging:  :smilewink:


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#7 classic ONLINE  

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Posted January 18, 2016 - 07:31 PM

The crank journal and rod started to become one just before the rod broke. I'd be investigating why the big end of the rod had a meltdown on the crank journal. It sure looks like the crank journal wasn't getting enough oil. Was the rod ever removed from this engine before and possibly installed backwards?
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#8 propane1 ONLINE  

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Posted January 18, 2016 - 08:03 PM

I don't know the answer to your question, classic. I will look in to it. If I can put the pieces back together.

Noel
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#9 classic ONLINE  

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Posted January 18, 2016 - 08:25 PM

As long as the block is alright, you should be fine. Turn the crank down and get another rod like you mentioned. Just double check the orientation of the oil hole in the big end of the rod if you rebuild the engine. I had a Briggs 23D that was seized when I bought it. The engine was run on low, dirty oil, and the crank seized in the front aluminum plain bearing cover. The aluminum residue on the front main crank journal looked like your rod journal. I ended up replacing the crankshaft with a good used one, since the old crank measured below reject specs on the rod journal and main journals. I've been mowing for the past two years with that rebuilt 23D in my Simplicity and it runs great. I'm just not a fan of the aluminum plain bearings on some of the Briggs engines.
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#10 UncleWillie ONLINE  

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Posted January 18, 2016 - 09:37 PM

Dat's da bomb!
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#11 adamjd200 ONLINE  

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Posted January 18, 2016 - 11:04 PM

I've seen the aftermath of a Kohler that had a rod installed backwards, bits and pieces of rod everywhere, also took out a large chunk of cylinder wall at the bottom of the cylinder.


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#12 skyrydr2 OFFLINE  

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Posted January 19, 2016 - 05:00 AM

That's what happens when the oil dipper has issues, lack of lube... Doh!! These engines really benefit from running Bestline oil additive ,it is un believable!! We run it in everything ! Had. A 455 olds all hepped up on goofy pills and huffing laughing gas pull a 10.31 at 143mph with 0 that reads zero oil pressure !! Never hurt a single part, of course we took it home and tore it down, only to be blown away at how perfect it looked inside!! From that day forward I have used the stuff..
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#13 propane1 ONLINE  

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Posted January 19, 2016 - 09:48 AM

You are right,classic. From what I can tell, the rod was in backwards. Oiler hole was not pointing toward the cam shaft. This was a used engine that I had. I know that I had it apart before I put it in the tractor, to see if it was any good. But can't remember if I had the piston out. So it may have been in wrong to begin with, or, if I had it out, I put it back in wrong, or, if I had it out, I put it back in the way I took it out, thinking it was right, and I should have checked it.
Any way, lesson learned. I always use this for reference when doing kohler motor work. Some how I may have screwed up. But that's fairly common for me. Expensive mistake.
Funny thou, the engine ran for 1 1/2 years, with hard work last winter blowing snow. We had a lot.


Noel

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#14 JDBrian OFFLINE  

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Posted January 19, 2016 - 12:55 PM

Not a good time to have this happen Noel. At least you have the spare 12 but if you are blowing snow that extra 2HP would be nice to have. 


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#15 classic ONLINE  

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Posted January 19, 2016 - 02:09 PM

I had a feeling that was the issue with the rod. It's amazing the engine lasted so long with it in backwards, and it's a simple step that can be easily missed. It's good that you started this thread as a reminder, thanks!
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