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Discussion Topic:
Buying a rebuilt flathead
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supereal |
10-31-2009 @ 9:46 AM
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Senior
Posts: 6819
Joined: Oct 2009
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Welding large cast iron pieces, such as an engine block, requires heating the block to a very high temperature, even when the special rods are used. We do it with smaller articles, but drill and pin most cracks. It takes practice and skill, but we have yet to see a properly pinned crack come back. If they fail, it is because the crack was not properly assessed as fixable.
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51f1 |
10-31-2009 @ 3:22 AM
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Senior
Posts: 573
Joined: Oct 2009
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Has anyone ever seen a flathead block that wasn't cracked? Cracks can be successfully repaired like Supereal describes. Welding cast iron is not easy.
Richard
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MOXIE |
10-30-2009 @ 9:03 PM
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New Member
Posts: 102
Joined: Oct 2009
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Shops have said they can repair a crack, but I have never seen one that worked. The only good repair is weld. And then you have to heat the whole block for it to work.
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rlh37ford |
10-30-2009 @ 6:02 PM
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Member
Posts: 28
Joined: Oct 2009
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Hi Super: Would you please send your repair photos to me at rlhate@ptd.net? Many, many thanks. Dick.
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supereal |
10-26-2009 @ 9:15 AM
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Senior
Posts: 6819
Joined: Oct 2009
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Will do. If I could master photo posting, I'd do it here. Many have never seen a successful crack repair, but it is necessary to salvage an otherwise defective block.
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lightflyer1 |
10-25-2009 @ 11:18 AM
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New Member
Posts: 107
Joined: Oct 2009
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Please include me! dje@austin.rr.com
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supereal |
10-25-2009 @ 9:16 AM
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Senior
Posts: 6819
Joined: Oct 2009
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I can e-mail them with your address, or snail mail them if you prefer.
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parrish |
10-25-2009 @ 6:10 AM
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Member
Posts: 349
Joined: Oct 2009
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Supereal: I'd like to see those photos...how best to get them?
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parrish |
10-25-2009 @ 6:09 AM
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Member
Posts: 349
Joined: Oct 2009
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Supereal: I'd like to see those photos...how best to get them?
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supereal |
10-24-2009 @ 10:44 AM
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Senior
Posts: 6819
Joined: Oct 2009
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Can't argue with that, but hearing an engine run still increase the probability that it is worth considering. We find cracks in just about every flathead block we check with our MagnaFlux machine. If they are not open into the water jacket, we drill and pin the cracks, then resurface the block to save it. One advantage in running the engine is to see if it overheats quickly. That usually indicates internal leakage. If anyone wants to see how the repair looks, we have photos of the results. If you can't pull the heads before you lay your money down, the asking price should be really cheap.
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