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Harry Ferguson Tractors Discussion Forum
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main bearing flanged/Z129

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david/co

06-06-2007 14:27:30




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I recently purchased an engine rebuild kit for my TO 20 which has a Z 129 engine. Started to put it back together and found the main bearing has a flanged #1. This Z129 is designed to use thrust washers and needs an un-flanged bearing type. I have not had luck finding this type. Does anyone know where to find the un-flanged bearing? Or suggestions on how to make what I have work.




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John(UK)

06-07-2007 04:30:06




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 Re: main bearing flanged/Z129 in reply to david/co, 06-06-2007 14:27:30  
This site does a flanged main bearing kit for your engine, look under TO30 parts.



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John(UK)

06-07-2007 11:45:43




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 Re: main bearing flanged/Z129 in reply to John(UK), 06-07-2007 04:30:06  
Apologies, I misread your request. I have looked around all the usual stockists of these and I can't find any at all....John



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ferg1also

06-06-2007 19:18:25




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 Re: main bearing flanged/Z129 in reply to david/co, 06-06-2007 14:27:30  
ck a main set for a Z134 To35



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Jerry/MT

06-06-2007 18:47:30




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 Re: main bearing flanged/Z129 in reply to david/co, 06-06-2007 14:27:30  
Since you have a Z129 engine, you needed to buy a TO-30 rebuild kit not a TO-20 kit. That's water under the bridge, however. You will have to hit the machine shops and see if you can find a single #1 bearing and a thrust washer kit, unless the place where you bought your kit will exchange it for you. If you haven't installed any parts from the kit they might swap you also.



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david/co

06-07-2007 07:05:15




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 Re: main bearing flanged/Z129 in reply to Jerry/MT, 06-06-2007 18:47:30  
I did buy the TO 30 kit from this site YT. I do not see where they offer the non flanged type bearing. Will the flanged type work if the flange is taken off?



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Jerry/MT

06-07-2007 10:10:08




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 Re: main bearing flanged/Z129 in reply to david/co, 06-07-2007 07:05:15  
I can't answer that question. Talk to the people you bought it from and see if they will exchnge it for the right parts. The Z129 reacts the thrust with a set of thrust washers not with the flange so you better stick with that design. The thrust washer system is backward compatible for the Z120 but not vice versa. This is too important of an issue to get wrong and my background is in fluid mechanics and not mechanical design so I'm not any kind of journal bearing expert.

I'm a firm believer in putting the correct parts into a rebuild. It would be a bad deal to go through all that effort and expense and have a problem at the end of the day.

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