Overheated TC33D Engine Rebuild how to Split: Tractor Engine Repair Rebuild  -- Tractor Maintenance Discussion Forum and Review Overheated TC33D Engine Rebuild how to Split: Tractor Engine Repair Rebuild -- Tractor Maintenance Discussion Forum

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Discussion Boards > Active Subjects > Messages as Posted > Tractor Engine Repair Rebuild Forum

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 12-16-2014, 20:23 Post: 191650
gotowin



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 Overheated TC33D Engine Rebuild how to Split

This is a 1999 model with 356 hours showing.Smile Was overheated to the point of engine shutdown.So Sad Was partly dismantled then the owner decided he was in over his head, and abandoned the repair leaving the tractor sit for three + years. I have recently acquired the tractor, have purchased I thought all the repair manuals, and am in the process of removing the engine. I have done older tractor splits, but nothing this new. My manual section 18 on the clutches references a sect. 72 for a tractor split. I do not have a section 72. Can someone help me out with that particular section 72 on splitting the tractor. This is a hydrostatic drive transmission which makes me a little uneasy about unbolting the engine and pulling it from the bell housing and clutch assembly.Wink yeah right Thanks for replies. gotowin






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 12-16-2014, 21:28 Post: 191651
gotowin



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 Overheated TC33D Engine Rebuild how to Split

NH TC 33D as accquired





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 12-17-2014, 09:04 Post: 191656
jobone



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 Overheated TC33D Engine Rebuild how to Split

Wow that is tough 356 hours is like brand new. A rebuild is usually after several thousand hours not hundreds. Almost all engine parts are going to be like new!

How far has the engine breakdown proceeded? Any possibility of repairing without splitting?






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 12-17-2014, 11:57 Post: 191661
gotowin



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 Overheated TC33D Engine Rebuild how to Split

Thanks for the quick reply. The engine is all exposed, head removed, the front axle assembly has been rolled out of the way. All electrics, hyd. lines, fuel lines, radiator, front frame, dash, fuel tank have been removed. Just a matter of hooking the engine to the lift, removing the engine to tranny bolts, and sliding the engine forward. I just talked with a mechanic at the local NH/Kubota dealer. He could not find the manual referencing a Sect. 72 either, but said it should separate after removing the bolts and breaking the adhesive seal that NH puts between the engine and tranny. He did note that a possible problem could be (since it has been sitting for three years) the clutch disc being frozen to the tranny input shaft. He said that would add 2+ hours labor to the separation.
Gotowin






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 12-17-2014, 12:59 Post: 191662
gotowin



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 Overheated TC33D Engine Rebuild how to Split

NH TC33 engine removal





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 12-17-2014, 21:03 Post: 191664
gotowin



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 Overheated TC33D Engine Rebuild how to Split

Got the engine pulled away from the rest of the tractor and now on the engine stand. No issues with separating from the tranny. The clutch disc was not rusted to the shaft.Smile Now to begin disassembly of the engine and find out what repairs are needed. Had to modify my engine stand mounting hardware a little after I read that the crank has to come out the rear of the engine. I have a pic that I hope shows up in this post.






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 01-06-2015, 18:28 Post: 191796
jobone



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 Overheated TC33D Engine Rebuild how to Split

Have you figured out what was wrong with the engine?






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 01-06-2015, 22:40 Post: 191797
treeman



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 Overheated TC33D Engine Rebuild how to Split

Some good pictures. I will be watching your progress.






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 01-07-2015, 09:36 Post: 191798
gotowin



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 Overheated TC33D Engine Rebuild how to Split

I don't know what happened to the post I put on here last evening.So Sad

[Moderator]
Missing Post

I think I have.Wink yeah right The #1 front piston had gotten so HOT that Aluminum from the piston had started to transfer to the cylinder wall. This is what seized the engine.So Sad I had to scrape away aluminum with my pocket knife from the cylinder wall in order to remove the piston. I just today took the engine block, pistons, and head to the machine shop. First to check for cracks (I couldn't see any), then to see how much damage has been done to the #1 cyl. bore. Good possibility that if the block is not cracked, it will need to be bored +.020 or worst case +.040. I don't think or am aware of cyl. sleeves being an option on this engine.
A bit of advice:--- Guys/gals when the temperature guage, idiot light indicates things are getting hot-- [SHUT THE TRACTOR DOWN]. These kinds of repairs are expensive.

[/Moderator]


Anyway-- Yes, I think I have discovered what the problem was/is. the engine overheated to the point that aluminum from #1 piston had started to transfer to the cylinder wall. This is what caused the engine to seize. I just yesterday took the block, head, and pistons to the machine shop. After a brief look the machinist told me that simply honing likely will not be sufficient for the #1 front cylinder wall. He did not rule out the possibility of boring and sleeving. Their fist mission is to check the block and head for any unseen cracks. Pistons seem to be available in +.020", and +.040" oversize. The previous owner was running a six foot bush hogg behind this tractor while the radiator and oil cooler were clogged with dirt and debris. The engine overheated to the point that a 3/4" expansion plug inside the valve cover let go. This turned the water loose into the crankcase. Shortly the engine seized and stopped.
A word to the wise--- when gauges, lights, and other signs tell you that the tractor is over-heating. "SHUTTER DOWN" A simple cool-down and fixing the cause for over-heating is much- much cheaper then this repair is going to be.
Dan R






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 01-22-2015, 13:55 Post: 191900
Art White



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 Overheated TC33D Engine Rebuild how to Split


When injectors get blocked from contaminated fuel they often will cause this from the spray not being where it should be. Might have been closer to the problem then overheating.






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Discussion Boards > Active Subjects > Messages as Posted > Tractor Engine Repair Rebuild Forum

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Art White 4 | candoarms 1 | gotowin 14 | jobone 2 | treeman 1 | xperts 1 |




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