MF65 engine id ad4.203??? and liner question

/ MF65 engine id ad4.203??? and liner question #1  

somanytractors

Silver Member
Joined
Jun 25, 2017
Messages
218
Location
atlanta, ga
Tractor
several
I have an mf65. The number for the tractor on the plate by the battery are
CNDW 701 302

There is no tag on the motor.
The only numbers I can find on the block (left side) is C37112210Y and below that is MC22827
I've attached a pic of the tag on the injection pump but it's pretty beat up and hard to read.

I think this is an AD4.203 because everything I found points to the 4.203 and when I looked up the kit the AD had the cupped pistons like this motor has while the D had flat top pistons.
The liners measure about 3.66 inside. Not sure what they should be.
I just want to make sure which one it is. I could be completely off and it may be an entirely different motor.

Also are these pretty easy liners to get out or are they going to put up a fight? Debating wether to change the liners or just put rings and/or pistons in it. It runs great, starts easy, but it smokes a lot and blows oil out the dipstick even with the valve cover off. I haven't got the pistons out yet but from the top the liners look pretty good visisbly. No gouges or anything.

Any help is greatly appreciated!
Thanks :)
John
 

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