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Kubota BX stripped Exhaust Manifold bolt

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mjymich
Join Date: Jan 2008
Posts: 13 new brunswick canada
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2009-04-21          162216


Hi I like to know how to fix a stripped exhaust manifold bolt on a Kubota BX1830 it holds the muffler to the manifold, there are 3 bolts and one is stripped.

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Kubota BX stripped Exhaust Manifold bolt

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kwschumm
Join Date: Feb 2003
Posts: 5764 NW Oregon
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2009-04-21          162217


Quote:
Originally Posted by mjymich | view 162216
hi i like to know how to fix a strip bolt that hold the muffler theirare3 bolt andone is strip


Is there something special about the bolt that it can't be replaced with a new one?

Or is it a stud? Or a threaded hole in a casting?

Need a bit more info I guess. ....

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Kubota BX stripped Exhaust Manifold bolt

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mjymich
Join Date: Jan 2008
Posts: 13 new brunswick canada
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2009-04-21          162218


its a bolt with tread and it goes at the end of the manifold where the muffler goes the bolt screw in the muffler and its strip inside the muffler and it leak the fume off the diesel ....

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Kubota BX stripped Exhaust Manifold bolt

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auerbach
Join Date: Sep 2007
Posts: 2168 West of Toronto
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2009-04-21          162219


If you are bolting into a threaded hole (can't put a nut on the other side) and the threads are stripped, you switch to a bolt one or two sizes bigger. You drill out the hole (with the exact right size drill bit for tapping the new hole for the bigger bolt), and tap new threads into the hole. ....

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____________________________________________________________________________________
Kubota BX stripped Exhaust Manifold bolt

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mjymich
Join Date: Jan 2008
Posts: 13 new brunswick canada
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2009-04-22          162230


its a bx 1830 and the bolt screw inside the muffler and its strip inside and i cant go bigger cause the muffler bolt on the manifold 3 bolt hold the muffler ....

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____________________________________________________________________________________
Kubota BX stripped Exhaust Manifold bolt

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auerbach
Join Date: Sep 2007
Posts: 2168 West of Toronto
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2009-04-23          162250


Not sure I have the exact picture but there are new glues for holding bolts in concrete, and for locking bolts in metal, often an epoxy formula (you mix two parts together). Maybe a good quality one would hold for you. You'd clean and dry both sets of threads thoroughly, apply well, and keep from moving until it sets. Some epoxys set in minutes, others take hours, but I think slower is stronger. ....

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Kubota BX stripped Exhaust Manifold bolt

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s chrand
Join Date: Aug 2004
Posts: 77 Mid-Michigan
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2009-04-23          162264


It sounds like the easiest fix is a new muffler.
Assuming the 1830 is the same as my 2230, then the tapped holes are in the muffler; the screws go through a flange on the end of the manifold pipe and thread into the muffler.

I'm guessing that you took the screw out, and made sure it's not stripped and that the threads in the muffler are.

You could drill out the offending threaded hole in the muffler, and either tap it for a heli-coil insert, or tap it to the next larger size. If you go with a heli-coil, your old screw will still work and you won't have to drill out the hole in the flange. The next size up screw will require those things.
....

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____________________________________________________________________________________
Kubota BX stripped Exhaust Manifold bolt

View my Photos
mjymich
Join Date: Jan 2008
Posts: 13 new brunswick canada
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2009-04-23          162267


the muffler is like new to me 181 hr on it i will take it out and find out whats wrong with it ....

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