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#1
12-03-2010, 11:27 AM
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K301 exhaust port repair
i ran into this issue with my 123 cub when i disassembled it. the threads in the block are badly corroded and some have completely rusted away. i cant get the elbow exhaust pipe to thread back in. what can i do to get this repaired? i dont want to scrap the block since it is original to the tractor but i also want to be able to use the stock and stack style exhausts i have. my local Case IH dealer said there wasnt any way to repair it other than to make it a boat anchor.
 
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#2
12-03-2010, 11:34 AM
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I think you can drill and tap the bosses to the sides of the exhaust outlet and put a flange on the pipe. I may be wrong. Sombody will either correct me or tell you the correct way to fix it.
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#3
12-03-2010, 11:38 AM
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thats what i was thinking too. but i was informed by the IH guys that there wasnt enough "meat" to retap the outlet. i had also come across an idea on haveing a bushing at the right diameter put in and tapped for the exhaust but that will be more than i can do since i am limited in tools
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#4
12-03-2010, 02:21 PM
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I think you are misunderstanding. He is suggesting that you drill and tap the bosses on either side of the exhaust port(hole). Some blocks are already done and this is were a bolt on manifold would mount. You would not be using the threads in the port(hole) at all.
__________________
Sold everything but one. 1211-snow pusher, cab ,54 inch plow, loaded tires (all 4) Gilson wheel weights, X-trac fronts- soon to have power steering and dual hydraulics
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#5
12-03-2010, 03:45 PM
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Ok yea i see what you guys mean there is plenty there to drill and tap the bosses. got a little confused there and not sure how i did that to myself. Thank you guys for the help! :biggrin2.gif:
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#6
12-03-2010, 04:13 PM
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Don't go and drill to deep. You need to find a spec on how deep to drill, or you might have more of a problem than you started with.
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#7
12-03-2010, 09:19 PM
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I can get a rough estimate off of my 12 hp unit from my 128. It was factory drilled.
__________________
DWayne 1973: 128, ag tires, 3pt. lift, spring assist, lights, 42" Deck 10" moldboard plow 2016 XT1 42" deck 18HP
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#9
12-03-2010, 10:47 PM
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Thanks for the measurement DX3! I knew it couldnt be too deep but wasnt sure how deep to go. Now i can use both exhaust styles and just undo a couple of bolts. Yall are invaluable sources of information!
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#10
12-04-2010, 03:37 PM
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Does anyone happen to know where i can get an exhaust flange to fit the K301? i dont have a band saw otherwise i could make my own easily instead of making my forearms look like popeye's. Also what kind of metal would be ideal for exhaust tubing?
__________________
1967 IH Cub Cadet 123 1978 IH Cub Cadet 1650 19?? IH Cub Cadet 682
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