Hello all, this new to me 3910 was struggling to turn over with a fully charged battery with charger on boost. It also wouldnt even attempt to fire on ether. So I figured something was going on internally. Decided to split the tractor and open it up. As soon as I took the pan off I found a bunch of bearing metal all chewed up. So far Ive only taken the main bearing caps off and found only 1 of them is all scuffed up and you can see the chunks that were holding the crank up from spinning.
My question is; and let me preface this by saying I understand its not the right way. But so far the crank shaft looks really good, no damage on the journals at all. If I take the motor the rest of the way down and clean all the shavings out of the block and everywhere else, could I save the thousands of dollars in machine work, and just throw new rod and main bearings in the motor and run it? Also what would cause the damage to the bearings that I have? Any advice is appreciated. Ive attached some pictures. As well as a video of how hard it was turning over.
Oh and does anyone know what these main bearings cross too? Ive googled these numbers and I cant seem to match them up? Thanks
My question is; and let me preface this by saying I understand its not the right way. But so far the crank shaft looks really good, no damage on the journals at all. If I take the motor the rest of the way down and clean all the shavings out of the block and everywhere else, could I save the thousands of dollars in machine work, and just throw new rod and main bearings in the motor and run it? Also what would cause the damage to the bearings that I have? Any advice is appreciated. Ive attached some pictures. As well as a video of how hard it was turning over.
Oh and does anyone know what these main bearings cross too? Ive googled these numbers and I cant seem to match them up? Thanks