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John Deere Tractors Discussion Forum
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Sandblasting 1937 A

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1 Dollar

06-10-2006 19:04:48




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I am almost ready to sandblast the frame/ engine/ rear end on my tractor. I just want to make sure that I got all the holes and bearings covered up. I got the:
Intake
Exhaust
Steering pedestal gear
Flywheel bearings with 15+ layers of duct tape
Oil line hole in governor

The ones that I have questions on are the breather hole in the radiator cap, grease zerks, and the brakes. Do I just avoid the zerks so that I don't directly hit them? Did I forget or overlook anything?
Thanks for any replies

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George S. in the real NY

06-11-2006 02:58:50




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 Re: Sandblasting 1937 A in reply to 1 Dollar, 06-10-2006 19:04:48  
Whoa!!! I agree with all posts so far. That sand will get in places you won't believe. I will never knowingly buy a tractor that was completely sandblasted. Any,ANY parts that have to do with internal eng or gears if I sand blast them, then it is off to the car wash and pressure soap wash and rinse. Had an engine failure years ago from a set of sandblasted heads that learnt me about this. A friend had same thing happen at same time, same shop did those heads, engine ran maybe an hour, smoked from the start and after the hour, the rings, which had been new, looked like they had a zillion miles on them. That was back in the days that I was a desert rat and lived where sand blew all the time. Yeah, sure miss those little sand dunes on the window sills and the pitted car glass. There one learns about air cleaners. So, I say try some other method. Big fire hose sand blast is going to ruin what you want to save. Small siphon unit could be used with great care on small areas but.... Also, know that coarse sand will leave pitts on the surface of what you blast. Not too bad on cast but can screw up what should be smooth metal. Try paint stripper, might seem slower but may give better final result and more paint ready iron. HTH George

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Marty Z

06-10-2006 22:13:37




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 Re: Sandblasting 1937 A in reply to 1 Dollar, 06-10-2006 19:04:48  
I agree.
I only sand blast the parts that I can take off of the tractor. And then I do it way away from the shop area. That sand has a way of getting into every thing ,,and it wears on every thing it can stick to.I use a wire wheel on the case and a bunch of high pressure air after a good washing down with solvent or Gunk type cleaner.
Marty Z

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Mike M

06-10-2006 20:12:25




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 Re: Sandblasting 1937 A in reply to 1 Dollar, 06-10-2006 19:04:48  
The only way I'd recommend sandblasting a tractor is if you do it ,then prime it, then do a COMPLETE TEAR DOWN and clean everything out.



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johns48b

06-10-2006 19:54:10




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 Re: Sandblasting 1937 A in reply to 1 Dollar, 06-10-2006 19:04:48  
i think the general opinion is going to be that no matter how good you tape things out sand is going to get into the engine, trans, everything. when i did my 48b i just knew i had it all covered. i didn't know that where i took one bolt out of the flywheel cover that it undercovered a hole that went into the crankcase. after it was all sandblasted i took all the tape off and then discovered sand down in the block. about two inches deep. i washed and sprayed for at least an hour with everything i could think of including a pressure washer and 6 months later, after driving the tractor in a 3 hour long christmas parade, i thought the valves were to noisey so i took the valve cover off to adjust them and said man it sure is clean in here. i got to looking and there was no oil going to the rockers. i got to the oil line and blowed through it backwards and then cranked the engine and the awfulest looking pile of sand and grud came out of the oil line and it started working fine. i decided to drain the oil and recheck the inside of the crankcase from the top. after investigating i found sand pilled up in front of the oil pump, between it and the block. i finally got it clean and turned the tractor over with kerosens in the block and pumped it through all the oil lines. i pulled the rod caps off and made sure there was nothing in under them and luckly there wasn't. i'd be sure that all the sand is flushed out good or not sandblast it at all. good luck

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