DB 990A engine overhaul

Q1: The crankshaft is worn 1 m/m below normal, is it nessesary to completly remowe it for regrinding or are the bearings strong enough to just mount an oversize bearing at #4 and new standard sizes on the others.

Q2: The pistons are cracked between the rings can i use used pistons with new rings to replase them if i hone the cylinders.

I'm not interested in spending 1000$ on a tractor wich only costed me 300$ to buy incl. front lift.

I was wondering about bying a used engine to replase mine, are there other engines who would fit in the frame.

When the maschine gets running its only gonna be used for forest jobs and road use no field work, so it's not gonna be working hard.

Best regards

Soren Sorensen
Denmark

What engine will fit the 990A frame.

And what are the prices of such engine.(aprox)

Best regards

S�ren S�rensen

As far as the crank, I'm not good enough on metric to SAE conversion to compare 1 mm. I'd say it needs a turn if it spun a bearing, you might get away with a .005 out of size but it wont forgive scratches. I have not found a source of used or reman engines for these. Sorry, wish I had better news.