grumpyunk
Well-Known Member
Honda engines command a good price when they are offered for resale. If you don't get the crankshaft straightened, you could use a HF vertical mower engine to replace the Honda. Good places to look for a used engine seem to be Facebook and Craigs list web sites. Likely you can find a new replacement crankshaft if you want, but the marginal cost for parts is pretty high compared to that of used parts, such as from ebay or amazon. A local dealer can probably get a new replacement and a tube of Hondabond to seal things back up.
The actual work is not difficult, but you will have to remove the flywheel and the output shaft pulley, and take the pan/sump off for access to the cam and connecting rod. You can likely find a 'service or shop manual' with specifications for clearance and torque values online.
tom
The actual work is not difficult, but you will have to remove the flywheel and the output shaft pulley, and take the pan/sump off for access to the cam and connecting rod. You can likely find a 'service or shop manual' with specifications for clearance and torque values online.
tom
Did you balance the blades ? Blades are not balanced in production. In my 10 years of commercial mowing, I only have about one out of 25 blades that are reasonably close to being balanced. A friend of mine bought a new mower, and was complaining about a vibration so bad he was going to take the mower back to the dealer. I had him bring to me, I removed and balanced the blades, and the vibration was gone.
Honda cranks are cheap compared to Briggs or Kohler but it looks like they are trying to catch up. A few years ago they were about $39.00 now they are about $89.00.
To replace the crank I found easiest to remove the blower housing and flywheel, remove blade and adapter and trans drive pulley, now unbolt engine and drain the oil out of the dipstick hole. Turn engine upside down remove the valve cover, the pin that the cam turns on. and the governor arm from the shaft, now remove the six bolts the hold the oil pan to cylinder asembly. Note pry notches on each side.
To reassemle reverse procedure. Be careful when reassembling crankcase halves I like to reinstall the cam before putting the halves together. Timing = Piston at TDC note arrows and cam has two flats the align with the edge of the block. also be sure bottom washer is turned with correctly. Not really a bad job but imtimidating for a first timer. Question just ask.
To replace the crank I found easiest to remove the blower housing and flywheel, remove blade and adapter and trans drive pulley, now unbolt engine and drain the oil out of the dipstick hole. Turn engine upside down remove the valve cover, the pin that the cam turns on. and the governor arm from the shaft, now remove the six bolts the hold the oil pan to cylinder asembly. Note pry notches on each side.
To reassemle reverse procedure. Be careful when reassembling crankcase halves I like to reinstall the cam before putting the halves together. Timing = Piston at TDC note arrows and cam has two flats the align with the edge of the block. also be sure bottom washer is turned with correctly. Not really a bad job but imtimidating for a first timer. Question just ask.