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Case Tractors Discussion Forum
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451 Overhaul

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newbie52

11-13-2017 18:29:15




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Hi guys,
I'm looking to do a 451 engine rebuild for fun this winter. Is a Case service manual the best and most comprehensive place to go for information. And I would prefer to compile the special, engine-building tools I need beforehand, so what are the specific tools that I would need? For instance, what size micrometer(s) do I need?
Thanks




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jim_uny

11-15-2017 07:40:10




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 Re: 451 Overhaul in reply to newbie52, 11-13-2017 18:29:15  
i suggest both case & itt. i have found that sometimes itt has little extras. worth the 20 bucks



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kevinthefixer

11-14-2017 17:59:12




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 Re: 451 Overhaul in reply to newbie52, 11-13-2017 18:29:15  
Pretty much the case (pun intended) whatever you might be working on. The manufacturer knows what size it is, they, well, manufactured it. Anybody else either took their word for it or measured it, either way they might easily make a mistake and often do.



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L.Fure

11-14-2017 03:36:21




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 Re: 451 Overhaul in reply to newbie52, 11-13-2017 18:29:15  
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I agree, a Case manual would be the best.



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Case Nutty 1660

11-14-2017 03:29:59




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 Re: 451 Overhaul in reply to newbie52, 11-13-2017 18:29:15  
I Highly recommend the Case manual over the IT the IT have a lot of info but not even close to the detail and "correctness" of the Case manual,, the Case one covers everything step by step and if you go by it chances of a mistake are very slim,, your job your call,, for me the correct info is priceless
cnt



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casecollectorsc

11-14-2017 03:24:28




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 Re: 451 Overhaul in reply to newbie52, 11-13-2017 18:29:15  
The top flange area under the sleeve needs o be trued up to provide a good fit for the new sleeve. Special cutter needed to do the job. Also sleeve protrusion has to be correct. If it isn't trued up it will crack the new sleeves again.



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L.Fure

11-14-2017 03:17:40




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 Re: 451 Overhaul in reply to newbie52, 11-13-2017 18:29:15  
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I'd think an I&T shop manual would give you enough information to get the job done. A digital caliper should be accurate enough for what you want to do. I use a metric digital caliper in my watchmakers shop for very fine measurements of mechanical watch parts. Other tools will depend on how deep you want to get into the engine.



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