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Victim of plastic quick release drain plug.


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#1 TAHOE OFFLINE  

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Posted May 15, 2015 - 08:15 AM

My FIL asks me on Mothers Day if I want his Troybilt Bronco LT. Said he was cutting grass, it started knocking then Bang! He said oil was dripping out the the quick drain plug the mower shop had installed. I pickup it Monday and pulled motor and pics below shows what I found, rod disinegrated. Maybe 3 tablespoons of oil in pan. It appears that maybe the steering arm which goes right over the drain plug may have hit the plastic and cracked it causing it to drain the oil as he cut. Must have happened right as he started cause there was no oil in garage indicating it had been leaking. I would have went back on mower shop as they put quick drain on for their convenience as he never does his own service, but he just went and bought a new one.
This mower was bought new in 2011.
I need to finish teardown, but everything besides rod looks okay, piston moves in cylinder pretty easy, may need to replace govenor. Hopefully I can clean up crank.
parts look to run about $70-80 at this point if I find nothing else.

Can the broken half moon be welded back? It appears to be cast aluminum? New pan run $220, ouch. New complete motor is $350.

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#2 KennyP ONLINE  

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Posted May 15, 2015 - 08:25 AM

Ouch! That's why I service my own!


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#3 Billy M OFFLINE  

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Posted May 15, 2015 - 08:30 AM

Sorry to see that.  I had a Briggs with a factory plastic quick drain plug that never quite held oil, but never let loose.  It was leaking when I got it & still leaked when I sold it.

 

I'm sure you could get that tig welded.  Aluminum likes to expand quite a bit when heated.  I don't know how that would affect any tolerances, etc.??  I would probably run it like it is.  I like to experiment!  =)



#4 TAHOE OFFLINE  

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Posted May 15, 2015 - 08:39 AM

My FIL said the shop added the quick release, but maybe it was factory, I dunno. He's getting older and sometimes gets his facts all mixed up. Anyway, it did crack lengthwise and drained the oil while he was cutting.

The piece of the pan that broke looks to basically just be a baffle in the pan and and has a half moon clearance relief in the top. It doens't appear to look like it holds anything like a bearing, just clearanced for a moving part to pass by, I dunno. I think even if I could get it tig in stitch welds in just a few places, it would hold for what it is.

I plan on fixing it either rebuild or new motor. The tractor itself look brand new and my newest LT is 1997 and worn out, I could use a newer  smaller LT for cutting then I cold get rid of all my junk ones and quick patching them together.



#5 bbuckler OFFLINE  

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Posted May 15, 2015 - 08:56 AM

My FIL said the shop added the quick release, but maybe it was factory, I dunno. He's getting older and sometimes gets his facts all mixed up. Anyway, it did crack lengthwise and drained the oil while he was cutting.

The piece of the pan that broke looks to basically just be a baffle in the pan and and has a half moon clearance relief in the top. It doens't appear to look like it holds anything like a bearing, just clearanced for a moving part to pass by, I dunno. I think even if I could get it tig in stitch welds in just a few places, it would hold for what it is.

I plan on fixing it either rebuild or new motor. The tractor itself look brand new and my newest LT is 1997 and worn out, I could use a newer  smaller LT for cutting then I cold get rid of all my junk ones and quick patching them together.

My intek has a quick release. If I was was up that way have a model 31 block sitting in the barn the exhaust valve broke in but the other parts seems fine.


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#6 ol' stonebreaker OFFLINE  

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Posted May 15, 2015 - 05:09 PM

  That's why I still like good old fashioned pipe plugs. Sometimes a better mouse trap will bite you on the azz.

                                                     Mike


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#7 TAHOE OFFLINE  

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Posted May 20, 2015 - 09:33 AM

Upon some investigation, I found the half moon piece that broke out of the pan is actually used as a guide. It seems the counter weight on the crank slips over it and I guess that piece keeps the weight from moving around too much. Guess I have no choice to try to get it tig welded back or replace pan. If a new pan is needed, I will find a new motor.



#8 bbuckler OFFLINE  

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Posted May 20, 2015 - 09:44 AM

If it the bottom part I have one you could have just pay shipping
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#9 bbuckler OFFLINE  

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Posted May 20, 2015 - 09:53 AM

ImageUploadedByTapatalk1432133574.674521.jpg

#10 TAHOE OFFLINE  

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Posted May 20, 2015 - 11:56 AM

Thanks. I would have to get a good pic to send to you to see if they are they same.



#11 bbuckler OFFLINE  

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Posted May 20, 2015 - 12:06 PM

It a model 31 came off a Troy bilt I will go get a better pics

 

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#12 bbuckler OFFLINE  

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Posted May 20, 2015 - 12:21 PM

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