I have a John Deere 755 with 2100 hrs on a 3 cylinder yanmar. Tractor has quite a bit of blowby through the vent tube. I was wondering if this was a sign the motor needed rebuilt. Tractor is running with plenty of power. Just alot of smoke.
I have just purchased a JD 755 with loader that has been neglected by previous owner and needs a great deal of tlc. The tractor is very hard to start when its cold but starts fine when it is warm. I put test light on old glow plugs and they were getting positive voltage for about 7 to 8 seconds...