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H Problems

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IndianaRed

06-23-2006 10:03:36

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Well, I thought I just had one spun rod bearing, ordered parts from Joe's just yesterday to fix it, then this morning found that #1 was bad too, (along with #3), not to mention the bottom of the piston was gone. On both bearings it looks like all the damage was to the outside of the bearing and the inside of the rod cap, not the crank. Is that a common way for those bearings to wear and go bad? And is it much more likely now that I definately have to pull the crank and have it measured and ground? And what does magnafluxed mean? Appreciate any input.
Thanks
Bri

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KEB

06-23-2006 20:35:21

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Re: H Problems in reply to IndianaRed, 06-23-2006 10:03:36

While you're at it, have the rod ends checked for size & out of round & look carefully at the main bearings also. Cam bearings might also be suspect. If you've got the engine that far apart, you might as well pull the cam and have the machine shop take a good look at it, too.

Bearings spin from a lack of lubrication which causes the bearing shell to seize to the crank. I've seen a couple instances where the bearing seized hard enough to the crank to spin the shell in the rod end - one was an old air cooled VW engine that had been run out of oil. If it seized that tight, good chance the crank is toast, as it'll probably be gouged too deep to be turned.

Remember the science experiment in grade school where you sprinkled iron powder on a sheet of paper with a magnet underneath, to see the pattern of the magentic field. Magnaflux is just a more sophisticated version. The magnetic field will separate around discontinuities in the metal, such as a crack, which will show up as a distortion in the pattern of the test media. Finds cracks too small to see or feel.

Depending on what your goal for the tractor is, you might scrounge around & find a parts tractor with a useable crank & rods. If you're really lucky, you might find one that has usable pistons & sleeves as well. Paying for the machining, new rings & bearings, & a gasket set is a lot cheaper than all new parts.

Good luck - I hate it when things like that happen.

Keith

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BillyinStoughton

06-23-2006 11:48:27

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Re: H Problems in reply to IndianaRed, 06-23-2006 10:03:36

I would say "no" to the common way for bearings to go bad question. Somewhere along the line our little friend the H suffered from neglect I would suspect...probably on the lubrication end of things.

If you"ve spun a bearing, there is no doubt whatsoeve that you will need to have the crank machined...if it is good at all. I don"t know how far they can turn down an H crank, but the machine shop will know.

Good luck with it!

Billy

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IndianaRed

06-23-2006 12:22:15

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Re: H Problems in reply to BillyinStoughton, 06-23-2006 11:48:27

Thanks Billy,

Appreciate your insight. So basically, I need to save up about $2,000 to give this tractor what she needs all around. Engine, probably a governor from the way she ran, ignition, clutch, brakes, guages, seat assembly, radiator serviced, tires, rims, minor tin work, luckily, and some paint. Maybe $3,000? lol Exactly what I was looking for!

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BillyinStoughton

06-23-2006 13:31:43

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Re: H Problems in reply to IndianaRed, 06-23-2006 12:22:15

Your on the right track by the thoroughness of your "to do" list. Tackle what needs to be done first, and work your way out from there. Obviously the engine will be the big $$$ task, but you will have piece of mind for years to come everytime you touch the starter button.

One it comes to re-doing the carb and governor, be sure to check what the rebuild kits consist of. I'm a BIG fan of OEM parts from the dealer as they seem to be the most complete and high quality. Of course a heftier price tag comes with that though :(

You do have one thing going for ya however...there are not shortage of parts for that old girl. Treat her well.

Billy

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kfox

06-23-2006 13:25:35

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Re: H Problems in reply to IndianaRed, 06-23-2006 12:22:15

I'm trying to finish a H now. I'd guess its more like $5000+. Most of it went to the CIH local dealer. Sigh.....ken

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IndianaRed

06-23-2006 13:32:23

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Re: H Problems in reply to kfox, 06-23-2006 13:25:35

So I guess we have to keep them for another 50 years to get our money out of them?

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brainerd dave

06-23-2006 10:39:22

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Re: H Problems in reply to IndianaRed, 06-23-2006 10:03:36

Magnaflux:
a test of ferrous metals involving the dusting of a magnetized sample with magnetic powder, or the application of oil containing magnetic particles in suspension, to detect surface cracks and defects.

Funk & Wagnalls.

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