after 2 hrs

h,mmm - hate to be the grinch, but if you get that power washer into the engine and/or electrical sys, you'll prolly be putting the final nails in the coffin of that old gal.
L&G powered eqpt just ain't designed/built to withstand those kind of baths. Water in the crankcase/fuel system, corrosion in the wiring/switches/starter motor. Much better to use compressed air, leaf blower o9r the like and then mebbe a damp rag for the stubborn spots followed by wax.
Good luck with the project :)

Model 1830 and Built by MTD.

Take a good look at the Trans-axle for the manufacturer name. If it is a Peerless for example. Check around for one or parts from different makes (JD, Craftsman, Cub Cadet etc) that used the same trans-axle.

Pressure washing will not hurt the tractor unless you fill the carb and/or exhaust full of water. I pressure wash my lawn equipment two or three times a year and have never had a problem.

Grandson and my project.

Great Grand Pa to take the time to work with and teach the young ones about the part of American history that will never be taught in schools..

The little one and i spent 6 moths redoing a 1949 Ferguson TE20.

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She would spend hours putting around the field in 1st gear at a slow idle if I would let her.

"Pressure washing will not hurt the tractor unless you fill the carb and/or exhaust full of water. I pressure wash my lawn equipment two or three times a year and have never had a problem. "

Agree to disagree, Hippy.. Might be argued a bit more on farm equipt due to deign, etc., but not on L&G powered eqpt. If you ain't got bit yet, you will.