300 Flywheel surface questions

Zachary Hoyt · Jun 28, 2012

I took the rest of the TA assembly out of the tractor tonight. I checked Kevin Meier's measurements the back end is 2.873 according to my caliper. I didn't have deep enough jaws to get a definite reading on the seal area but it is very smooth with no visible or feelable wear. The rollers look like new, I do not understand the ramp yet so I am not sure if it is worn or not. my I&T manual is on the way. The TA clutch looks like it has never been disengaged, there seems to be no wear on it but it is rusty. A neighbor told me I could clean up the rust on the disk, flywheel and pressure plate with sandpaper moving in small circles and progressing to finer grits. I am wondering also about the engine flywheel and whether it needs to be surfaced or replaced or if it is okay to use as it is. I will be replacing the clutch disk and pressure plate. As always, and advice is much appreciated. I hope to have this project actually get to the reassembly stage soon, seems like I have been taking things apart for a while now.
Zach

rhtx55 · Jun 28, 2012

The engine flywheel definitely needs to be turned by a professional, it should clean up very nicely. I would take the T/A plates with you also, his machine will clean them up & get them perfectly flat also.
I have seen some pretty seriously heat cracked flywheels come off of Cat & Cummins engines turned and they come out perfect.
Get a local guy that does diesel engine flywheels and has quite a bit of experience.
I would first soak all the rusted parts in kerosene or diesel which ever you have handy, and then see what needs further cleaning or machining.

sallystractor · Jun 28, 2012

i agree machine shop work will refinish the parts like new HOWEVER working with some 80-then 220-wet-dry sand paper a da would also work and diesel or any kind of oil will also clean up the hardened steel surface ,,even with a machine chances are some heat cracks will still be in it ,check the flywheel for high spots and flatness with a straight edge ,and a feeler gauge ,go lightly with some green or brown scuff pad for the clutch disc

gold1456 · Jun 28, 2012

yeah i agree i would for sure do something about the engine flywheel.

rustred · Jun 28, 2012

all depends what your going to do with that tractor. if its just a drive around the yard thing a lot of those things can be cleaned by hand . even that disc dont look that bad. i use an angle grinder with a wire wheel on stuff like that. all depends how much money you want to spend.i have seen way worst flywheels than that.

iowa steve · Jun 28, 2012

we use two different ramps when we rebuild ta"s the first is a low spec. of 2.855 and a low step is 2.843-2.8435,the low spec. on the seal is 2.925. i would definitely have the flywheel ground or it might void the warranty on a new pressure and disc. good luck !

iowa steve · Jun 28, 2012

mistyped, low spec. is 2.859 not 2.855.

mkirsch · Jun 29, 2012

I can't wait until you get this tractor running again. Keep at it Zach!

NoNewParts · Jun 29, 2012

like rustred, I use a small right angle die grinder with a cone
wire brush.
I save my worn down brushes for jobs like that.
very short bristles that are very stiff.
One only has bristles left that are 1/8" or so.
high speed grinder and keep it moving and it puts
almost a machine shop finish on flywheels, PP's, heads and decks.

300 Flywheel surface questions

Zachary Hoyt

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rhtx55

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sallystractor

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gold1456

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rustred

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iowa steve

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iowa steve

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mkirsch

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NoNewParts

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